From: "John Slade" Subject: COZY: Chap 17 - Landing Brake angle Date: Sun, 18 Jul 1999 18:07:06 -0400 Hello Builders, Could someone tell me what the proper angle of the landing brake should be when fully deployed? I can't seem to find any reference to this in the plans. I guess that's because the angle is governed by the manual plans mechanism. I'm installing an electric actuator so everything depends on where I mount the brackets. Thanks in advance for this info. John Slade Cozy MkIV #757 From: Fritzx2@aol.com Date: Tue, 20 Jul 1999 16:56:04 EDT Subject: Re: COZY: Chap 17 - Landing Brake angle >I can't seem to find any reference to this in the plans. I guess that's >because the angle is governed by the manual plans mechanism. I'm installing >an electric actuator so everything depends on where I mount the brackets. >John Slade I believe the angle was 60 degrees included angle when opened up fully. I too had the same question as you did. I find it odd that all the other surface deflections are so well defined by either an angular deflection or a tip displacement but the air brake is not defined. John Fritz From: Don Bowen Subject: COZY: RE: Landing Brake Angle Date: Tue, 20 Jul 1999 17:46:43 -0400 John Slade wrote: Could someone tell me what the proper angle of the landing brake should be when fully deployed? Here are my 2 cents worth: I recently completed the installation of the speed brake on my Cozy Mk IV using the electric actuator kit. I also looked through the Cozy plans and the electric actuator kit plans and could not find any specifications (in degrees) for speed brake deflection. As presently installed, my speed brake is (as best as I can measure it) fully extended at approximately 70 degrees to the fuselage. I think this will depend on how / where you locate the actuator attach bracket. I located mine low enough as to avoid interference with the map pocket, while high enough to avoide any cables, fuel lines, etc. that will be subsequently installed above the heat duct. I recently sent in some photo's of this installation to Nat Puffer, so hopefully they will appear in the next newsletter. John, I have a couple of photo's left over, so you can contact me directly if you think they would be of assistance to you. Good luck with your project, Don Bowen Cozy Mk IV, s/n 440 donbow@symix.com From: "david vollrath" Subject: Re: Fwd: Re: COZY: Chap 17 - Landing Brake angle Date: Tue, 20 Jul 1999 17:08:01 PDT >John Fritz > > >I believe the angle was 60 degrees included angle when opened > >up fully. > >Sounds (well, looks) about right. > > >..... I too had the same question as you did. I find it odd that > >all the other surface deflections are so well defined by either an > >angular deflection or a tip displacement but the air brake is > >not defined. > >I'm going to assume that it's not defined because it really doesn't matter >much, within the range of possible deflections caused by tolerances in the >manual LB installation. Anywhere from 50 degrees to 70 degrees - the >difference in drag will be all but unnoticeable. Just make sure it's flush >when retracted, and goes out to about 60 degrees, and you'll be fine. > >-- >Marc J. Zeitlin mailto:marcz@ultranet.com > http://www.ultranet.com/~marcz/ Also Don't forget to have at least an inch of clearance between the extended brake and the ramp with the aircraft at gross wieght and the gear fully splayed out. Of course none of us have taxied in and parked with the brake extended. :-) David Vollrath _______________________________________________________________ Get Free Email and Do More On The Web. Visit http://www.msn.com Date: Thu, 22 Jul 1999 18:04:28 -0400 From: "L. Wayne Hicks" Subject: COZY: Pre-Fab Switch Panels > > John Slade first wrote: > > > Is there anything prefab out there that > > doesn't cost $300? > Rob Mozer, Jr. replied: I had the same question with regard to electric Landing Brake. Let us > know what you hear. > --------> I think Composite Design makes prefab switch panels for the landing brake mechanism and the Wright nose lift--> http://www.integrityonline15.com/wwerner/Composite_Design_Homepage.htm Wayne Hicks Cozy IV #678 Chapter 13, 18 http://www.geocities.com/yosemite/falls/2027 Date: Tue, 20 Jul 1999 23:28:02 -0700 From: "LCDR James D. Newman" Subject: COZY: Re: Landing Brake Hi John and All, > What kind of control / indicator gizzmo's have people built for the electric LB and nose gear? Is > there anything prefab out there that doesn't cost $300? MAC makes a really nice light bar, now a needle position indicator just for such an occasion. Call Vern at: (760) 598-0592 . http://www.menzimeraicrcraft.com . Infinity's Forever, JD From: "John Slade" Subject: Re: COZY: RE: Landing Brake Date: Tue, 20 Jul 1999 17:06:42 -0400 Hi Don and others who replied to my landing brake question. Thanks for the input and the offer of pictures. At Nat's 'prompting' I looked at the plans again :) and found that the LB is shown fully deployed on M28. The angle from the vertical measures half of 45 degrees. i.e. 67 1/2 degrees from horizontal. I doubt that 2.5 degrees will be an issue, but we are getting pretty close to the vertical, so I think I'd rather err on the low side. I've just about completed my LB installation now, and will post pictures in my web site when I get them developed. Don, if you want to send copies of your pics to me (address sent in private message) I'll post them also. was said: >Anywhere from 50 degrees to 70 degrees - the >difference in drag will be all but unnoticeable I wonder if that's true. One last question on landing brakes..... I got a couple of DPDT switchs, some mini red & green lights and a couple of micro contact switches from Radio Shack. They work, but I'm not really happy with them. What kind of control / indicator gizzmo's have people built for the electric LB and nose gear? Is there anything prefab out there that doesn't cost $300? Regards, John Slade Cozy MkIV #757 http://kgarden.com/cozy From: "Nat Puffer" Subject: Re: Re: COZY: Chap 17 - Landing Brake angle Date: Wed, 21 Jul 1999 06:19:46 -0000 Builders, The landing brake is shown extended on large drawing M-28 (as I remember, I don't have drawings with me on our trip). The angle isn't real critical, and the brake isn't adjustable (very much) if you install it with the hardware shown in the plans. Regards, Nat From ???@??? Fri Jul 23 19:36:31 1999 Return-Path: owner-cozy_builders@betaweb.com Received: from twc2.betaweb.com (majordomo@betaweb.com [206.43.209.18]) by acestes-fe0.ultra.net (8.8.8/ult/n20340/mtc.v2) with ESMTP id BAA25115 for ; Fri, 23 Jul 1999 01:18:35 -0400 (EDT) Received: (from majordomo@localhost) by twc2.betaweb.com (8.8.5/8.8.5) id UAA15824 for cozy_builders-list; Thu, 22 Jul 1999 20:23:47 -0400 X-Authentication-Warning: twc2.betaweb.com: majordomo set sender to owner-cozy_builders@betaweb.com using -f Received: from mail1.mia.bellsouth.net (mail1.mia.bellsouth.net [205.152.16.13]) by twc2.betaweb.com (8.8.5/8.8.5) with ESMTP id UAA15819 for ; Thu, 22 Jul 1999 20:23:41 -0400 Received: from jslade (host-209-215-54-107.pbi.bellsouth.net [209.215.54.107]) by mail1.mia.bellsouth.net (8.8.8-spamdog/8.8.5) with SMTP id AAA19248; Fri, 23 Jul 1999 00:57:55 -0400 (EDT) Message-ID: <004d01bed4c6$dfdf0260$5b4dfea9@jslade.pbc.adelphia.net> From: "John Slade" To: "Marc J. Zeitlin" , "Cozy Builders Mailing List" Subject: Re: Re: COZY: RE: Landing Brake Date: Fri, 23 Jul 1999 00:50:22 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.1 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Sender: owner-cozy_builders@betaweb.com Precedence: bulk Reply-To: "John Slade" X-UIDL: 9b2b138a6efa00ab1e180d4c1d8fe358 Marc, >>>Anywhere from 50 degrees to 70 degrees - the >>>difference in drag will be all but unnoticeable >>I wonder if that's true. > >Well, a BOTE (back of the envelope) calc. shows that with the amount of >extra frontal area in going from 50 deg. to 70 deg., assuming a drag >coefficient of (1), a forward speed of 100 mph and a 1700 lb. COZY, the >difference in vertical descent rate would be about 60 fpm. This may be off >by a factor of 2 (remember, BOTE) but I'll bet it's pretty close. > >Use the energy method to equate the power lost in drag to the power >obtained in vertical descent. This is left as an exercise for the student :-). I was thinking of the additional force on the landing brake brakets / hinges / screws etc. John Slade From: "John Slade" Subject: Re: COZY: Pre-Fab Switch Panels Date: Thu, 22 Jul 1999 19:45:54 -0400 >--------> I think Composite Design makes prefab switch panels for the >landing >brake mechanism and the Wright nose lift--> They have a nice looking gear panel for $125. Don't see anything for the LB. From: alwick@juno.com Date: Sat, 24 Jul 1999 11:46:57 -0700 Subject: Re: COZY: Landing brake, allowance for some engine cooling airflow This landing brake is another good thing to look at from the Failure Mode and Effects Analysis (FMEA) point of view. It seems that the original design for landing brake was "Let's throw a big flap down to increase drag and reduce risk of shock cooling." But clearly it reduces air flow a bit too much. We end up with an expensive failure mode of engine overheat and possible loss of power if brake deployed under certain conditions. With the original mechanical brake design, all you need do is NOTICE the overheating condition and retract the brake. Since it's easy to notice (noise) the risk is very very small. An electric actuator adds a few failure modes to the scenario(loss of power, etc). Still low probabability of failure, but substantially higher than the original design. We have three options to reduce risk. 1) Reduce the probability of failure. 2) Increase the chances you will notice the condition before failure. 3) Alter the EFFECT of the failure. Altering the effect is one of the most effective actions you can take because you don't have to worry about unforseen causes. Things like that inaccessable fuse blowing at the wrong time, electric power failure, actuator cable breaking, etc. There is a great deal of value to a design that includes a slight increase to cooling flow while not negatively effecting drag, cg, or other items. Often I hear statements like "This can't happen with a properly trained pilot...blah blah". Training works, but it's not long lasting, varies pilot to pilot, etc. However, if you alter the design so that the plane is insensitive to the deployed brake, THEN you really have a robust design. If you can fly around all day with deployed brake, you don't need to worry about all the things that can cause it to stay deployed. Perhaps, a slight design change can increase the airflow 10% and eliminate the EFFECT on the aircraft engine. When my landing brake is deployed, there is 0 clearance between it and the fuselage. I wonder how much clearance it would take at that hinge line to increase flow to the NACA scoop? Too bad we can't come up with some simple way to measure the changes. Like making an 1/8" scale model and then placing it under your water faucet to estimate how much flow passes to naca with varying gaps. I'd consider testing it during the winter months, but my aircraft already has a much reduced risk of this type of failure. I've got bigger fish to fry and will need to focus on those. Sure would be nice if someone else tested it though. I really suspect that a minor design change here can eliminate the effect. We just need a wee bit more naca flow. -al wick Canopy Latch System guy. Artificial intelligence in Cockpit Cozy sn 389 driven by stock Subaru 2.5 ltr.97% complete. ___________________________________________________________________ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: http://dl.www.juno.com/dynoget/tagj. From: "Nat Puffer" Subject: Re: COZY: Landing brake, allowance for some engine cooling airflow Date: Tue, 3 Aug 1999 15:01:40 -0000 ---------- > From: alwick@juno.com > To: cozy_builders@canard.com > Subject: Re: COZY: Landing brake, allowance for some engine cooling airflow > Date: Saturday, July 24, 1999 6:46 PM > > This landing brake is another good thing to look at from the Failure Mode > and Effects Analysis (FMEA) point of view. > It Dear Builders, The landing brake is an optional landing aid, to increase the angle of descent, but not necessary for landing.Your can do the same thing with both rudders. I know of no reason why anyone would want to fly around with it down. Simply install it per plans and use it per owners manual, and sleep peacefully at night. Stop imagining imaginary problems. Nat : http://dl.www.juno.com/dynoget/tagj. From: cdenk@ix.netcom.com Date: Tue, 3 Aug 1999 20:10:33 -0500 (CDT) Subject: Re: COZY: Landing brake, allowance for some engine cooling airflow Also helps protect the prop from debris from pavement when the wheels are in contact with the pavement and moving. From: "astrong" Subject: Fwd: COZY: Strong pitch trim Date: Tue, 17 Aug 1999 17:47:42 -0700 You wrote; "The Strong electric pitch seems very popular, but I'm not sure why. Is it just nice to have an electric gizmo rather than a direct physical control (I have to admit I love gadgets too), or is it more precise, or what?" Ed, Per the rules in this group I am not allowed to push my product. The info you need you will find in my web site under pilot reports. Welcome to the group. I have been flying my COZY III 6 years now. You made a good choice in aircraft. Regards, Alex Homepage http://www.canard.com/trim "Live your life so you can look anybody in the eye, and tell him to go to blazes!!" Dr. James Walter Strong (1874-1950) From: cdenk@ix.netcom.com Date: Tue, 17 Aug 1999 16:21:56 -0500 (CDT) Subject: Re: COZY: Strong pitch trim On 08/17/99 08:20:38 you wrote: > > I test flew the the Strong pitch trim system yesterday and an >delighted at how well it works. > > In the Cozy MKIV (at least mine) the unit fits almost perfectly >between the elevator crank arm and the lower corner of the instrument >panel bulkhead. Instead of attaching to the elevator push rod, I made a >bracket at the that fits in the lower corner as described and >substituted an AN4-15 bolt at the elevator. The elevator push rod is >outboard of the arm and the Strong rod is inboard. The angle to the >floor corner is somewhat greater than the push rod but it seems work >just fine. > > Instead of taking my stick grip apart and rewiring it, I installed >an AN3027-7 DP DT momentary on-off-on switch just aft of the throttle. >Seems to be a very natural place to find trim and it too is >satisfactory. Had to reverse the leads to get it to go the right way >but that was easy. > >dd > > > > Does your setup allow adjusting the trim for correct trimming in the event of a failure, or will it be required to hold pressure against the trim mechanism to maintain the desired attitude? Assuming a runaway trim due to stuck switch or say trimmed for cruise, and then slow approach speeds. From: "astrong" Subject: Re: COZY: Strong pitch trim Date: Tue, 17 Aug 1999 15:16:09 -0700 You wrote; "Does your setup allow adjusting the trim for correct trimming in the event of a failure, or will it be required to hold pressure against the trim mechanism to maintain the desired attitude? Assuming a runaway trim due to stuck switch or say trimmed for cruise, and then slow approach speeds." My reply; You apply pressure in the event of an electrical failure to correct for attitude. In the event of a runaway (stuck switch) Erick Westland`s Test pilot Len Fox did simulate this condition for both up and down condition and found it to be a none event and the aircraft was fully controllable and a safe landing was made. I believe Len`s words were" I am satisfied." Regards, Alex Homepage http://www.canard.com/trim "Live your life so you can look anybody in the eye, and tell him to go to blazes!!" Dr. James Walter Strong (1874-1950) Date: Tue, 05 Oct 1999 09:53:47 -0500 From: vance atkinson Subject: COZY: Re: [c-a] Landing lights Rick Caldwell wrote: > [The Canard Aviators's Mailing list] > > Question; Has anyone moved their landing light out to the end of the > strake yet and if so how did it work? I live where there is a lot of > wildlife on the strip at night and the more light you have the better. > I was thinking about a pair of lights at the end of the strakes. > > Rick C > > \ > ->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>-|- > / > -For details on sponsors of this list, copyrights, and how to remove > -yourself from this list, please visit: > > http://www.canard.com/canard-aviator-sponsors.html > > (c) 1997,1998, 1999 Canard Aviators. support@canard.com > / > -|-<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< > \ Mine is out on the end of the R/H strake, put it there as a recognition light not a landing light. However, it does work ok as a landing light. The problem comes from the angle you mount it at. It just happens so that it works ok for landing, but not taxi. You will get some scatter back from the canard being in the way, mine is not too bad as I have dihedral in the canard. So, you say move it further out on to the wing.....DO NOT cut into the wing leading edge skins......these are structural and would require an inordinate amount of beefing up and probably would require some engineering to make sure it was correct. In order to put this light there took about 40 hours of work as I molded a Lexan exact fit lens for the unit........along with internal mounting brackets and all the other stuff such as cooling for the one million candle power bulb. Vance Atkinson Cozy N43CZ 1300tt From: "astrong" Subject: COZY: Re: [c-a] Landing lights Date: Tue, 5 Oct 1999 09:56:26 -0700 Rick, check out "Innovations" at the bottom of my homepage for my landing and taxi light installation. Regards, Alex Homepage http://www.canard.com/trim "Live your life so you can look anybody in the eye, and tell him to go to blazes!!" Dr. James Walter Strong (1874-1950) From: cdenk@ix.netcom.com Date: Tue, 5 Oct 1999 15:59:21 -0500 (CDT) Subject: Re: COZY: Re: [c-a] Landing lights Mine are in the lower quartes of the nose. The lamps are Whalen recognition lights, rectangular. See Wicks catalog, one with narrow beam lense, one with wide beam. They do a decent job of taxi and landing. Have a pulselite hooked too them. Very visible when headon day or night. Date: Wed, 06 Oct 1999 08:54:57 -0500 From: vance atkinson Subject: COZY: Re: [c-a] Landing lights---At the tip SWrightFLY@aol.com wrote: > In a message dated 10/5/99 10:34:04 PM Central Daylight Time, vaatk@flash.net > writes: > > << DO NOT cut into the wing leading edge skins......these are > structural and would require an inordinate amount of beefing up and > probably would require some engineering to make sure it was correct. >> > > I am getting ready to install the small 2 inch dia. lights at the tip in > front of the winglet. I do not think this will pose a problem as we have no > flight loads at that location and the stiffness will be put back with bid. Am > I missing something here? > Steve Wright > Wright Aircraft Works LLC: > Electric Nose-Lift for EZEs All I can tell you is a few years ago Mike said "DON'T CUT INTO THE LEADING EDGE UNDER ANY CIRCUMSTANCE". Take it for what its worth. vance From: jhocut@mindspring.com Date: Wed, 06 Oct 1999 11:56:40 -0400 Subject: Re: COZY: Landing Lights >From Canard Pusher #73, October, 1992 Some owners/builders of the Long/Vari-EZ are relocating the landing lights from uynder the fuselage to a position outboard in an attempt to improve lighting for night landings. Several instances have shown where the builders have created a separate cell in the fuel strake for the landing light. This is a poor choice for a device that generates so much heat. Even without a fuel leak, the amount of heat generated by these lights in such close proximity to 26 gallons of fuel is very risky. If a short circuit should develop and the fuse or circuit breaker fails to trip, the short could cause sufficient heat to melt the resin and dissolve the foam that seals the tank causing a fuel leak into the light housing. A fuel leak from a simple bulkhead seam flaw could also cause ignition simply from the heat of the light. High amperage circuits and heavy amperage consumers should never be placed in or around fuel lines or storage cells. Date: Wed, 06 Oct 1999 12:00:41 -0500 From: vance atkinson Subject: Re: COZY: Landing Lights jhocut@mindspring.com wrote: > >From Canard Pusher #73, October, 1992 > > Some owners/builders of the Long/Vari-EZ are relocating the landing lights from uynder the fuselage to a position outboard in an attempt to improve lighting for night landings. Several instances have shown where the builders have created a separate cell in the fuel strake for the landing light. > > This is a poor choice for a device that generates so much heat. Even without a fuel leak, the amount of heat generated by these lights in such close proximity to 26 gallons of fuel is very risky. If a short circuit should develop and the fuse or circuit breaker fails to trip, the short could cause sufficient heat to melt the resin and dissolve the foam that seals the tank causing a fuel leak into the light housing. A fuel leak from a simple bulkhead seam flaw could also cause ignition simply from the heat of the light. > > High amperage circuits and heavy amperage consumers should never be placed in or around fuel lines or storage cells. GEE..........I GUESS ALL THE TWIN CESSNA 300 and 400 SERIES ( with the wing tip retractable lights nestled on the bottom of the fuel tanks) and all the thousands of Lear Jets (with the lights IN the tip of the fuel tanks) SHOULD BE GROUNDED. Along with a bunch of MU-2's and assorted other turboprops. I don't even wanna talk about all the nav and strobe lights in WET wings. Now strobe lights......theres some high energy. Look guys ........ use some sense here. VENT your area, set your installation up off the strake floor, and insulate via conduits the wires and USE SOME COMMON SENSE !!!! .............GEESH ! Vance Atkinson Cozy N43CZ 1300tt 18,000 hours total flying time and loving it. From: "Nat Puffer" Subject: Re: COZY: Landing Lights in lower winglets? Date: Wed, 6 Oct 1999 14:04:06 -0500 Wayne, Mike Melvill said that if you put lights in the wings or strakes, the light reflects off the canard, and interfers with your night vision. That is why I don't use a landing light at night--just runway lights. I think I can actually see better that way. Nat ---------- > From: L. Wayne Hicks > To: cozy_builders@canard.com > Subject: COZY: Landing Lights in lower winglets? > Date: Wednesday, October 06, 1999 3:38 PM > > > strakes, wingtips, fuselage... > > ---------> Has anyone considered mounting recognition lights in the > lower winglets? I know the lower winglets are thin, you'd need a really > powerful but small diameter light. Thoughts? > > Wayne Hicks > http://www.geocities.com/yosemite/falls/2027 From: "Vernon Asper" Subject: COZY: Re: [c-a] Landing lights---At the tip Date: Wed, 6 Oct 1999 16:27:13 -0500 I've already installed mine in the wing tip. I put them about 10" inboard from the winglet, which is past where the winglet attach layups go but I expect to carry the layups past this point (inboard) to help carry the load. However, this is a Defiant, and the both the wing AND the winglet have massive spars, so this might not be relevant to other designs. From reading some of the popular stuff on composite design, the impression I get is that the skin on a wing with a spar is there for resistance to twisting and for protection from impact and actually carries relatively little load. The thickness of the skin (number of plies) appears to be dictated to resisting being imprinted by the elbowws of someone leaning on the wing rather than flight loads. But then again I could have misunderstood. From: cdenk@ix.netcom.com Date: Thu, 7 Oct 1999 16:42:57 -0500 (CDT) Subject: Re: COZY: Landing Lights This is an area that an improvement in the plans could be made. [My comment Deleted] A hole in the bottom of the fuselage, speed sensetive, and only one light. From: cdenk@ix.netcom.com Date: Wed, 6 Oct 1999 18:21:34 -0500 (CDT) Subject: Re: COZY: Landing Lights in lower winglets? Was said Although aircraft are hard to stop or turn quickly at night, one might be able to avoid an animal or other obstruction prior to collision, also the lights may warn people or animals on the runway. Date: Thu, 07 Oct 1999 07:29:06 -0400 From: "L. Wayne Hicks" Subject: Re: COZY: Landing Lights in lower winglets? Jim Sower wrote: > > Amen. In about 4000 hrs flying tactical turbines, I guess I turned on the > landing lights maybe a half dozen times (and regretted it half of those > times). -----------> Gentlemen: I personally don't need a landing light for anything except seeing the poorly painted taxi lines at our otherwise poorly maintained municipal airports I fly out of. (But then again, I won't tell you about the 5 deer standing on the runway on my very first night landing as a student pilot either...) But I feel there is a BIG need for bright recognition lights to keep those --- how did you say it -- tactical turbines from running me over at night. :-) Seriously, if you're going to fly at night, especially near B and C airspace, it will be the recognition lights that prevent a collision before TCAS or the xponder. That's why I was posing the question. Wayne Hicks http://www.geocities.com/yosemite/falls/2027 From: "Ugolini, Nick" Subject: RE: COZY: Landing Lights in lower winglets? Date: Thu, 7 Oct 1999 08:28:56 -0400 Previous msg: -----------> Gentlemen: I personally don't need a landing light for anything except seeing the poorly painted taxi lines at our otherwise poorly maintained municipal airports I fly out of. >I agree with that. But I feel there is a BIG need for bright recognition lights to keep those --- how did you say it -- tactical turbines from running me over at night. :-) >Cant see the lights if they are coming up from behind Seriously, if you're going to fly at night, especially near B and C airspace, it will be the recognition lights that prevent a collision before TCAS or the xponder. >Bright strobes work much better (less directional than lights). I use the Comet Flash strobes with two (instead of three lights). The puts all the power of the unit into each light flash. It is EXTREMELY bright. The controllers in the B & C airspace will work very hard at keeping you away from the few planes that venture out at night. >Has there been any discussion with putting the light in the gear legs like the big boys? It would have the added benefit of slowing you down when the gear is extended. Self cooling (in the air stream), away from gas, and no cabin sealing problems..... Nick N29TM Date: Thu, 07 Oct 1999 14:59:56 -0400 From: "L. Wayne Hicks" Subject: Re: COZY: Landing Lights in lower winglets? Ugolini, Nick wrote: > > >Has there been any discussion with putting the light in the gear legs like > the big boys? It would have the added benefit of slowing you down when the > gear is extended. Self cooling (in the air stream), away from gas, and no > cabin sealing problems..... > --------> Sure, but who wants to extend their gear every time they want to use their recognition lights? BTW, I like your strobes. My thing about recognition lights is in addition to strobes. Hicks Date: Wed, 06 Oct 1999 23:36:34 -0400 From: Jim Sower Subject: Re: COZY: Landing Lights in lower winglets? Amen. In about 4000 hrs flying tactical turbines, I guess I turned on the landing lights maybe a half dozen times (and regretted it half of those times). Of course we didn't have a serious deer problem on those runways, but aside from that, I can't see the point. I see a LOT better without them. MUCH better glideslope cues IMHO (and of course, with landing lights on you can't see the meatball worth a s**t ;-) Just a theory, Jim S. From: "Romulo Augusto" Subject: Re: COZY: Landing Lights in lower winglets? Date: Wed, 6 Oct 1999 20:29:41 -0300 Nat, Wayne, all, The Mitsubish MU-2 Marquise has a interesting solution for that problem, by the instalation of ligth deflectors, avoiding in this way the reflects of the landing/taxi ligths on canopy/cockpit. Romulo Augusto. Date: Thu, 07 Oct 1999 07:55:12 +0200 From: "Rego Burger" Subject: COZY: Laning Lights I don't use a landing light at night--just runway lights. I think I can actually see better that way. Nat <<<<<< I agree with Nat.... even if there is no reflection I prefere landing without the light at night.... a nice black runway with it's lights makes a clearly defined picture to approach on.... it even gets worse when a bit of hase or cloud is around..... as far as nav lights go...a must to be seen. I don't no if it is law to have landing lights on in other countries for viz. ? I only use the lights for taxi to the holding point of the runway and off again. Régo Burger RSA From: "Wilhelmson, Jack" Subject: RE: COZY: Pre-build:Ken Brock BOM, to do your self Date: Thu, 7 Oct 1999 23:06:25 -0400 Al: Building your own metal parts can be done. I did. However, I have a fairly complete machine Shop. Also, many of the parts must have jigs and fixtures to hold them for welding. The fixtures Take longer than the parts. Builders that are equipped and capable of this kind of work will do it. However, I would not encourage everyone to try it. Brock's parts are generally good quality and In my opinion (eveyone has one), they are not overpriced. If they were he would have competition. Jack Wilhelmson N711CZ -----Original Message----- From: alwick@juno.com [SMTP:alwick@juno.com] Sent: Thursday, October 07, 1999 12:34 PM To: cozy_builders@canard.com Subject: Re: COZY: Pre-build:Ken Brock BOM, to do your self The plans have the material description. Usually you'll find it on the page that includes the drawing and dimensions. Sometimes you have to search a bit. The raw material is so inexpensive, just make sure to get extra. As I recall, I had to order raw material a couple times because I misjudged amount required. If the plans called for 4 parts, I always made 5 or 6. Machining the stainless material was educational. I don't think Wicks or anyone else includes these parts. Make em yourself or pay Brock. Making your own Brock parts represents one of your best opportunities to save $. And it's fun. -al On Thu, 7 Oct 1999 07:38:43 +0200 "wydo van de waerdt" writes: > Dear Cozy builders, > > Is there someone who has made a BOM for the Ken Brock parts. > What I mean is a list of raw material, to make all the parts your > self. > (bushings, engine mount etc.) > > I suppose the parts are marked as prefab in the plans, and I don't > know if > Wicks are including the parts > in the "chapter kits". > > Regards, > Wydo van de Waerdt (NL) > #???? Pre-build > > -al wick Canopy Latch System guy. Artificial intelligence in Cockpit Cozy sn 389 driven by stock Subaru 2.5 ltr 103% complete, Aug 00 first flight sched.. ___________________________________________________________________ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: http://dl.www.juno.com/dynoget/tagj. From: alwick@juno.com Date: Thu, 7 Oct 1999 23:22:29 -0700 Subject: Re: COZY: Pre-build:Ken Brock BOM, to do your self I used to work at metal processing company. Built the parts there. I found that no complex fixturing was needed. Of course, since we were in that business, we knew all the little tricks. Probably helped that we built similar parts every day. Relative to most parts we produced, Brock parts are uncomplicated. All the lathe parts are very easy to produce (except stainless). To achieve precise i.d.'s, best to drill and then ream. Landing brake pulley best done with cnc mill and/or using rotary table on mill. Brake pedals were a piece of cake. Some of the tolerances are pretty tight, need to have access to accurate measuring equipment. I don't think Brock parts are overpriced. They just represent a large % of total. Thus a good cost saving opportunity. To each his own. -al BTW Jack, thanks again for the post on how to sand and finish. I was just reading that again today. Painting is FUN !!! From: "wydo van de waerdt" Subject: COZY: Prebuild: Layup confidence. Date: Fri, 8 Oct 1999 08:03:42 +0200 Dear builders, Please give me a few suggestions on useful books / video, you think are a good investment for doing lay-ups. I am in Europe so I can't attend a composite workshop in the USA. Regards, Wydo van de Waerdt #???? Pre-build From: "astrong" Subject: COZY: Re: [c-a] Landing lights Date: Thu, 7 Oct 1999 07:59:22 -0700 . " My question is...does the engine temps take a hit with the landing light deployed for extended periods of time while zipping along at 200 MPH? Wayne Hicks" Coming home from Sun N Fun 97` we run into the smoke from the fire in Mexico, we were in it from Fla. into Austin Texas where it cleared. I had my plans landing light deployed all the time. I held my indicated speed down to 120kt. faster than that and the light will retract. I did not notice any change in the engine temps. For details on my installation, check out "Innovations" on my home page. Regards, Alex Homepage http://www.canard.com/trim "Live your life so you can look anybody in the eye, and tell him to go to blazes!!" Dr. James Walter Strong (1874-1950) From: "Wilhelmson, Jack" Subject: RE: COZY: Re: [c-a] Landing lights Date: Thu, 7 Oct 1999 12:25:29 -0400 Wayne: The answer to your question is: You cannot deploy the light at 200 mph. Mine will not stay out all the way above 120 mph. Therefore, it is self correcting for any engine cooling problem that might exist. Jack Wilhelmson N711CZ From ???@??? Thu Oct 07 12:06:38 1999 Return-Path: owner-cozy_builders@betaweb.com Received: from twc2.betaweb.com (majordomo@betaweb.com [206.43.209.18]) by acestes-fe0.ultra.net (8.8.8/ult/n20340/mtc.v2) with ESMTP id JAA21445 for ; Thu, 7 Oct 1999 09:27:37 -0400 (EDT) Received: (from majordomo@localhost) by twc2.betaweb.com (8.8.5/8.8.5) id IAA03832 for cozy_builders-list; Thu, 7 Oct 1999 08:55:38 -0400 X-Authentication-Warning: twc2.betaweb.com: majordomo set sender to owner-cozy_builders@betaweb.com using -f Received: from ocean.otr.usm.edu (root@ocean.otr.usm.edu [131.95.82.42]) by twc2.betaweb.com (8.8.5/8.8.5) with ESMTP id IAA03827; Thu, 7 Oct 1999 08:55:34 -0400 Received: from vasper (dhcp181.ssc.usm.edu [198.49.215.181]) by ocean.otr.usm.edu (8.8.7/6.21jad USM) with SMTP id HAA15694; Thu, 7 Oct 1999 07:52:35 -0500 Message-ID: <003d01bf10c2$c9e21500$b5d731c6@ssc.usm.edu> From: "Vernon Asper" To: , References: <1999106191342441@ix.netcom.com> Subject: Re: COZY: Re: [c-a] Landing lights---At the tip Date: Thu, 7 Oct 1999 07:51:48 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2314.1300 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300 Sender: owner-cozy_builders@betaweb.com Precedence: bulk Reply-To: "Vernon Asper" X-UIDL: 7a8aaa9da0567dfde3dbee378c031a97 The Defiant has no winglet rudders. Instead, the rudder is mounted under the "chin", right behind the front prop and in its propwash. Good design, but uuuuugly. However, the winglets are about 6' (!) tall, so I sure agree with you that the torsional loads imposed by them onto the wings is going to be substantial. My plan (hope?) is that the carrying the winglet attach plis past the light cutout will carry what load there was in the leading edge skin. The wing chord is also substantial, even at this point, and the uni plis on it should be more than sufficient, along with everything else, to handle the load. Still, it is a cause for concern and that's why I mentioned it. ----- Original Message ----- From: To: ; ; Sent: Wednesday, October 06, 1999 6:18 PM Subject: Re: COZY: Re: [c-a] Landing lights---At the tip > Was said > > Spars in themself are channel crossections, with the flanges (spar caps of 3" roving tape or equivalent) carrying the bending > load, and the web (diagonal fiberglass) carrying the shear (perpendicular to the caps) load. The other important load is > torsion (twisting) probably mostly from rudders which is carried by the skin. All three of these loads are real and if not > carried adequately could cause massive failure. > From: TRCsmith@aol.com Date: Thu, 7 Oct 1999 20:23:39 EDT Subject: Re: COZY: Re: [c-a] Landing lights---At the tip In a message dated 10/6/1999 6:56:07 AM Pacific Daylight Time, vaatk@flash.net writes: << All I can tell you is a few years ago Mike said "DON'T CUT INTO THE LEADING EDGE UNDER ANY CIRCUMSTANCE". Take it for what its worth. vance >> It is the leading edge, but also the outbd end leading edge. No structural load. We even cut part off for the strobes. Small part, but still part. Date: Sun, 10 Oct 1999 23:41:29 -0500 From: Bulent Aliev Subject: Re: COZY: bike light Try: http://www.niterider.com/homeset.htm Brian Freitag wrote: > I went to the website that you posted ( niterider.com ) and I couldnt > find the light you were talking about. If you could can you post a part > number or let me know which one you were looking at in the store. I am > looking for something like that for my plane. Does anybody have a mold > or extra lens for putting the light in the end of the strake? I didnt > know if its in the archives. Thanks Brian #94 Date: Sat, 09 Oct 1999 12:30:16 -0500 From: Bulent Aliev Subject: COZY: Re: [c-a] Landing lights I stumbled today on a very interesting lighting system in a bicycle shop. It's called Nitelite. The web site is www.nitelite.com. The salesman gave us a demo and we were almost blinded in daylight conditions. The housing is 1.5" X 3" and holds two halogen lights. It comes with 1"X2" control unit that gives you: alternating flasher mode, SOS beacon, repeating beacon, soft start to prolong bulb life, low battery warning, automatic switching to the other bulb if one burns and 4 levels of intensity. If someone is close to a mountain bike shop check it out and give us a second opinion. Myself: I think it has potential for our airplanes. Bulent From: "Larry & Jenny Schuler" Subject: Re: COZY: Re: [c-a] Landing lights Date: Sat, 9 Oct 1999 12:43:59 -0500 >I stumbled today on a very interesting lighting system in a bicycle >shop. It's called Nitelite. The web site is >www.nitelite.com. Think I found 'em at http://www.night-sun.com Larry Date: Sat, 09 Oct 1999 12:45:56 -0500 From: Bulent Aliev Subject: COZY: Re: [c-a] Re: Landing lights OOOPS! I think made a mistake: It's Niterider.com Date: Wed, 13 Oct 1999 23:19:09 -0400 Subject: COZY: Fw: Re: Use with an alternator power source From: Dana Hill FYI With regard to the recent post about the Nitesun biking lighting......I asked them if these type of lights could be used with an alternator as a power source. Their response is below. --------- Forwarded message ---------- From: "Nightsun" To: Dana Hill Date: Sun, 10 Oct 1999 09:24:09 +0000 Subject: Re: Use on a car? Message-ID: <199910101625.JAA07838@home.wman.com> Might work ok, but what wories me is the voltage regulation of the vehicle. Some alternators / voltage regulators but out upto 16 vdc, way too much for our bulbs. Upto about 14 will work, but the lamp life will be shortened, over 14 and the lamp life would be very short. Most airplanes are 28 volt. In any event we do not sell headlights without batteries. Regards, Nightsun To: info@night-sun.com Date: Sat, 9 Oct 1999 21:52:11 -0400 Subject: Use on a car? From: Dana Hill Hi Night-Sun, I would like to know if your lighting system could be hardwired into a 14 Volt DC charging system, such as a car/airplane? Would this sort of mod be difficult? Any info in this regard would be appreciated. Thanks, Dana Hill Customer Service, Monday to Friday, 9 a.m. to 5 p.m., Pacific time 626-799-5074 From: "astrong" Subject: COZY: Re: [c-a] electric pitch trims Date: Fri, 19 Nov 1999 14:28:14 -0800 -----Original Message----- From: Jeff Russell To: Canard group Date: Thursday, November 18, 1999 12:59 AM Subject: Re: [c-a] electric pitch trims >[The Canard Aviators's Mailing list] > >Bill Allen wrote: >> I have heard about the "Strong" system, and read of the "Atkinson" >> system in CSA 37. >> I am aware of the debate which has taken place on these pages over >> "risks of runaway" etc versus "risks of trim springs breaking" etc. >.................. > >I have installed both systems a couple of times. Both work good. >I like the system Vance has a little better because the springs >seem to be smoother and the motor/screw jack is more precise. >The Strong system is much cheaper. If I remember correctly, >the motor cost about $250 and the spring assembly was about $100 >from Vance. I think he has plans so you can make it yourself. >He would need to confirm that. The spring assemble can be un-assembled >on the Vance unit. The Strong spring has been pressed together. >Alex would have to fix a sticky spring if there was a problem. >This happened to a spring that we installed on the Berkut and Alex >sent a replacement quickly out to us. I just wish anyone could >disassemble his unit for inspections. Maybe he could speak on this? > >Thanks Alex and Vance for great units. >I would never go back to the manual system. > >-- >Jeff Russell/AeroCad Inc. >Website: http://www.Aerocad.com > > > > > \ >->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>-|- > / >-For details on sponsors of this list, copyrights, and how to remove >-yourself from this list, please visit: > > http://www.canard.com/canard-aviator-sponsors.html > > (c) 1997,1998, 1999 Canard Aviators. support@canard.com > / > -|-<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< > \ >Jeff and Bill, Bear with me as I go into the history of this Pitch Trim system. When Vance published his Trim system in Cozy news letter #48 I was flying my Pitch trim on batteries to Maryland and back. I contacted Vance before I marketed the unit and offered to give him credit and possibly royalty on the idea as he published before I did, He graciously declined and said He was glad somebody was doing something for the Cozy and he wished me luck. The springs as configured on this units was the result of many test flights at various speeds and loads, I opted for this configuration to maintain level flight at high speeds (220 MPH 234 TAS) and slow flight (405 LBS... front seat load) in landing configuration. To reduce the spring rate would require for you to push the stick forward at high speed and pull back at slow speed, thus this was an arbitrary decision on my part to as I thought the former was more desirable at the expense of a slightly higher stick force. The unit is sealed (ends rolled) to eliminate the possibility of pushing or pulling the Nut or Gland out of the tube. The gland (square shaft) and the nut (threaded lead screw) has a boss machined to locate the I.D. of the spring, the piston also has this boss on both sides thus effectively centering the springs within the tube. Since there are no parts in the tube that requires periodic inspection as all fasteners are locked in place lead screw retainer roll pinned and piston is threaded and lock nut) I adopted the policy of replacing the faulty unit for what ever reason with a new unit as this will put you back in the air sooner and will allow me to do failure analyses on the failed unit, as was the case with the Berkut unit you returned, the fault was in the piston design, the original unit had a nylon piston with the Piston land too thin (material between the springs) which was under constant compression and in time expanded to take up the tolerance between the OD of the piston and ID of the tube causing the bind. The piston was redesigned and made of alum. I hope I have answered your questions and concerns. Best regards; Alex From: "James A. White" Subject: COZY: Landing Brake Handle Date: Mon, 22 Nov 1999 20:50:22 -0800 I just finished reinstalling my landing brake handle and thought I'd pass on a few things. 1. You do not need to make the side cutout in the console sides to adjust the tension on the landing brake cables as shown in Figure 7 on page 17-8. The cables can be tightened by making small adjustments to the cable position before final tightening of the outer ring. Simply remove the handle each time from the console as you make adjustments to the cable lengths. Don't put the washer and spacers on until after you have the cables to length. 2. As Klaus Savier says, "Simplificate and add lightness." The stock handle can be lightened considerably by drilling "lightening" holes throughout. I drilled holes in the handle and the attached ring pieces. The assembled parts weighed significantly less than the original handle did by itself. 3. If you are building the handle from from scratch, the dotted lines which mark the 45 degree bends should be at a different angle. I am referring to the two horizontal bend lines in the middle of the left hand side of page 17-7. The handle works fine as shown, but it cuts a large swath through the center console cover. You can minimize this swath by making the 45 degree bend lines tangential to the radius. In other words, rotate the horizontal bend lines 25 degrees counter-clockwise about their midpoint. Have fun, Jim White N44QT Date: Fri, 03 Dec 1999 20:05:52 -0800 From: Alex Strong Subject: Re: COZY: Landing light question Not an issue.Provides verification of deployed NG.Check Landing and Taxi lights at Innovations my home page for my installation. Alex Neil Clayton wrote: > A landing light question for C4 drivers; > > With the landing light in the plans location beneath the drivers seat, does > the nose gear leg create a shadow with a resulting dark spot ahead and to > the right? > > If it's an issue, I was thinking of dual lights either side of the > centre-line to eliminate the shadow. They could be coupled together in some > way so they're deployed by the same handle, and even at slightly different > angles to meet approach/flare and taxi needs. > > If it's not an issue, I'll keep it to plans. > Thanks for comments > Neil C From: "John Slade" Subject: Re: COZY: Landing light question Date: Fri, 3 Dec 1999 22:50:05 -0500 Neil, >With the landing light in the plans location beneath the drivers seat, does >the nose gear leg create a shadow with a resulting dark spot ahead and to >the right? >If it's an issue, I was thinking of dual lights either side of the >centre-line to eliminate the shadow. They could be coupled together in some >way so they're deployed by the same handle, and even at slightly different >angles to meet approach/flare and taxi needs. I'm not a Cozy IV "driver" yet, but I was thinking the same as you, so I did what you're suggesting. Haven't finished them off yet, but you can see a picture at: http://www.kgarden.com/cozy/chap17.htm Regards, John Slade From: cdenk@ix.netcom.com Date: Sat, 4 Dec 1999 08:10:23 -0500 (EST) Subject: Re: COZY: Landing light question Put the lights in the nose, no hole for drafts, no shadows, no bounce back at the pilot (except when in heavy snow, and even then the flashing lights was not distracting).