From: "Bill Kastenholz" Subject: COZY: Chapter 16 notes Date: Mon, 1 Mar 1999 17:06:05 -0500

Hello Group,

I have been done with Chapter 16 for a little while but forgot to mention a problem I encountered.

First of all, there were a few small corrections:

Page 1. CS-1A is listed as steel. The ones from Brock feel like aluminum and the magnet

doesn't say steel either.

Page 2. Same thing, CS-1A show STL.

Page 4. View G-G shows CS-1 insert, it should be CS-50 for the ailerons.

The problem I encountered was that the CS-50's from Brock didn't fit into the 1/2" .035 wall tubes for CS125L, CS126, CS126L, and CS129. Mike, at Brock, researched the problem. He said the LongEZ plans called out .028 wall thickness and .430/.438 OD for the CS-50's. This is what mine measured, instead of the .427 called out in the plans.

You have 3 options it seems to fix :

1. Have Brock machine down the CS-50s and cadmium coat.

2. Turn them down yourself on a lathe, if you have access.

3. Use steel tubing of .028 wall for these parts.

Somebody must have run into this before, unless everyone is making their own CS-50's. On to bigger and better chapters, like the canopy.

Bill Kastenholz

From ???@??? Wed Mar 03 21:04:17 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 AAA13958 for ; Wed, 3 Mar 1999 00:05:56 -0500 (EST) Received: (from majordomo@localhost) by twc2.betaweb.com (8.8.5/8.8.5) id XAA05592 for cozy_builders-list; Tue, 2 Mar 1999 23:27:56 -0500 X-Authentication-Warning: twc2.betaweb.com: majordomo set sender to owner-cozy_builders@betaweb.com using -f Received: from antiochus-fe0.ultra.net (antiochus-fe0.ultra.net [146.115.8.188]) by twc2.betaweb.com (8.8.5/8.8.5) with ESMTP id XAA05582 for ; Tue, 2 Mar 1999 23:27:51 -0500 Received: from zeitlinhome ([146.115.235.235]) by antiochus-fe0.ultra.net (8.8.8/ult/n20340/mtc.v2) with SMTP id XAA00671 for ; Tue, 2 Mar 1999 23:17:13 -0500 (EST) Message-Id: <4.1.19990302230809.009fda40@pop.ultranet.com> X-Sender: marcz@pop.ultranet.com X-Mailer: QUALCOMM Windows Eudora Pro Version 4.1 Date: Tue, 02 Mar 1999 23:16:32 -0500 To: Cozy Builders Mailing List From: "Marc J. Zeitlin" Subject: Fwd: COZY: Chapter 16 notes Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-cozy_builders@betaweb.com Precedence: bulk Reply-To: "Marc J. Zeitlin" X-UIDL: 604650a374d798ef8e99ac3752d96c60 Bill Kastenholtz wrote: > First of all, there were a few small corrections: > Page 1. CS-1A is listed as steel. The ones from Brock feel like aluminum >and the magnet doesn't say steel either. I made mine, so I made them from steel, but I'd be VERY surprised if Brock can't tell the difference :-). > Page 4. View G-G shows CS-1 insert, it should be CS-50 for the ailerons. I don't think so. All the aileron inserts are the CS-1's, and all the elevator inserts are the CS-1A's. I see no reference in the plans to any CS-50's, that's a Brock designation from something else - probably the L.E. > The problem I encountered was that the CS-50's from Brock didn't fit into the >1/2" .035 wall tubes for CS125L, CS126, CS126L, and CS129. Mike, at Brock, >researched the problem. He said the LongEZ plans called out .028 wall thickness >and .430/.438 OD for the CS-50's. This is what mine measured, instead of the .427 >called out in the plans. Sounds like Brock's selling CS-50's when they should be making and stocking CS-1's, as called out in the COZY MKIV plans. They should definitely NOT sell CS-50's as though they were CS-1's. They DO list CS-1A's in their catalog, though. Gee, a QC problem with Brock - how surprising. Nat, you should contact them about this and ensure that they stock the correct parts. PS - Bill, please turn off HTML/MIME encoding in MS OE - set it to send in TEXT only mode. Thanks. -- Marc J. Zeitlin marcz@ultranet.com http://www.ultranet.com/~marcz/ From: "Bill Kastenholz" Subject: Re: COZY: Chapter 16 notes Date: Wed, 3 Mar 1999 04:29:34 -0500 Marc wrote, > >I don't think so. All the aileron inserts are the CS-1's, and all the >elevator inserts are the CS-1A's. I see no reference in the plans to any >CS-50's, that's a Brock designation from something else - probably the L.E. Now I am getting confused, My #536 plans call for CS-50s in the list on page 16-1. Maybe this was where the error originated. If the part is called out wrong, then I ordered the wrong part, did I miss a correction to the plans? >Sounds like Brock's selling CS-50's when they should be making and stocking >CS-1's, as called out in the COZY MKIV plans. They should definitely NOT >sell CS-50's as though they were CS-1's. They DO list CS-1A's in their >catalog, though. Gee, a QC problem with Brock - how surprising. > Actually, I have to say Brock treated my very well and replaced one of the inserts I had destroyed in the process of fitting(smashing together with the assistance of heat and cold). I dealt with Mike at the Brock plant who did everything he could do. > >-- Bill Kastenholz wkasty@ix.netcom.com From: "Nat Puffer" Subject: COZY: CS Inserts Date: Wed, 3 Mar 1999 11:07:22 -0600 People, There is confusion on the CS inserts which I will try to explain. First of all, our practice has been that if there is a Long EZ part in stock that works, we don't design a new part, or give the same part a different name. Okay? Well, originally there was only one rod insert, and that was CS(for control system)-l. It was aluminum, supposed to fit inside an .035 wall tube, and was tapped 10-32. Then some Long EZ builders were bending the AN-3 rod ends to the elevators, when installing and removing the canard, so the CS-1A was born, which was drilled and tapped for 1/4 x 28 for 1/4" rod ends, and specified to be used on only the elevator push rods. Then a Long EZ had an engine fire and Burt decided the aileron push rods ought to be thin wall steel, so the CS-50 was born, but it was made of steel with an OD to fit inside a .028 wall steel tube. The CS-1A was switched to steel at the same time, although not necessary, and it was not given a new name because the dimensions stayed the same. The change from CS-1 to CS-50 was reported as a design change in the newsletter to all first edition plans builders. The nomeclature was changed to CS-50 in the second edition plans. To summarize, CS-1A is used on the elevator pushrods (for strength) and CS-50 is used in the engine compartment for fire resistance. There will be another change coming up, and that is the OD of the CS-50 will be reduced, because .028 wall steel tubing is very difficult to obtain, and most builders will have to use .035 wall tubing. In reviewing this in the second edition plans, I see that I didn't increase the OD when the designation changed to CS-50, but I don't have to make a design change, because the OD is being reduced for all new production. Clear as mud, huh? Best regards, Nat From: "Nat Puffer" Subject: COZY: CS inserts Date: Wed, 3 Mar 1999 13:45:38 -0600 People, We have a tolerance on the OD of CS inserts of plus or minus .001, coming from one source, and the tubing they fit in from another source has a tolerance on wall thickness of plus or minus 10%, and you may get either .028 wall or .035 wall tubing, so it is almost guaranteed that you will encounter some poor fits. It is better to have an interference fit, because then you can either ream out the tubing, or chuck the insert in your drill press and sand or file down the OD. If the fit is too loose, riveting in two places should solve that problem. The only other solution is to make your own inserts to fit. Sorry, all mass produced parts face the same problem. Everything has to have a tolerance. It is a fact of life. Regards, Nat From: Epplin John A Subject: COZY: Infinity stick and canopy interference Date: Sat, 6 Mar 1999 16:29:34 -0600 Have had the control system sort of installed as I made the pieces last winter. Now the canopy is installed and the latch mechanism in place. The latch pieces are made according to plans. Finnaly doing the last install of the control system. The stick grip interferes severely with the latch or vice-versa. I can shorten the stick mounting about 3/8 in before the grip runs into the arm rest. This leaves over 1/4 inch yet to go. Could shorten the canopy latch arm or reshape it by angling it forward 30 to 45 deg. Would have to make some sort of new catch. Any one else using JD's excellent grips run into this? John Epplin Mk4 #467 Date: Sat, 06 Mar 1999 15:05:50 -0800 From: "LCDR James D. Newman" Subject: COZY: Re: Infinity stick and canopy interference Hi John and All, > John Epplin wrote: > Finally doing the last install of the control system. The stick grip interferes severely with the > latch or vice versa. I can shorten the stick mounting about 3/8 in before the grip runs into the > arm rest. This leaves over 1/4 inch yet to go. Could shorten the canopy latch arm or reshape it > by angling it forward 30 to 45 deg. > Would have to make some sort of new catch. > > Any one else using JD's excellent grips run into this? You're the first to ever have this problem in a canard (that I know of ) in over 7 years of selling my Stick Grips. Can you e-mail me a pic? I may have some ideas :-) . Infinity's Forever, JD From: cdenk@ix.netcom.com Date: Sat, 6 Mar 1999 19:32:35 -0600 (CST) Subject: Re: COZY: Infinity stick and canopy interference Epplin wrote I use a piece of alum. tubing about 4" long with touring bicycle tubular foam handlebar grip material. The push to talk switch is at the top of the tube mounted through a handlebar end plug that comes with the grip kit. Its lightweight, doesn't get in the way, and is cheap. The feel is nice, and in long haul flying like is most of ours, your hand isn't on it that much anyway. From: "Paul Stowitts" Subject: Re: COZY: Infinity stick and canopy interference Date: Sat, 6 Mar 1999 17:38:58 -0800 I am using the MAC sticks and ran into the same problem. I made a new front latch piece out of 1/8" 2024 and it worked well. I used the original Brock piece to trace the top section and then modified the bottom to be further forward. Hope that helps. Paul Stowitts Cozy Mark IV #200 From ???@??? Wed May 19 23:01:25 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 WAA14466 for ; Wed, 19 May 1999 22:57:20 -0400 (EDT) Received: (from majordomo@localhost) by twc2.betaweb.com (8.8.5/8.8.5) id VAA32188 for cozy_builders-list; Wed, 19 May 1999 21:44:02 -0400 X-Authentication-Warning: twc2.betaweb.com: majordomo set sender to owner-cozy_builders@betaweb.com using -f Received: from mail.rdc1.md.home.com (imail@ha1.rdc1.md.home.com [24.2.2.66]) by twc2.betaweb.com (8.8.5/8.8.5) with ESMTP id VAA32171; Wed, 19 May 1999 21:43:53 -0400 Received: from cc1001208-a ([24.3.18.24]) by mail.rdc1.md.home.com (InterMail v4.00.03 201-229-104) with SMTP id <19990520023001.CFNU9170.mail.rdc1.md.home.com@cc1001208-a>; Wed, 19 May 1999 19:30:01 -0700 Message-Id: <4.1.19990519222925.02ab19d0@mail> X-Sender: cherney@mail X-Mailer: QUALCOMM Windows Eudora Pro Version 4.1 Date: Wed, 19 May 1999 22:32:55 -0400 To: Cozy7971@aol.com, SWrightFLY@aol.com, CANARD-AVIATORS@canard.com, cozy_builders@canard.com From: Rob Cherney Subject: Re: COZY: Brake Linkage In-Reply-To: <94313bf0.2474c9df@aol.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-cozy_builders@betaweb.com Precedence: bulk Reply-To: Rob Cherney X-UIDL: d304bcf87ff5785ba5f7ce82c71e46a2 At 10:13 PM 5/19/99 -0400, Cozy7971@aol.com wrote: >- Has anyone used actual bearings (as opposed to teflon or something >similar) in the aileron linkage other than at the wing root. I'm thinking >specifically in the front and back seat. See CSA Newsletter of July 1994. There is a simple, cheap, and light approach to using small needle bearings in the article. If you need details, e-mail me directly, or get the issue from Terry Schubert. Rob- +------------------------------------------------------------------+ |Robert Cherney Home Phone: (410)465-5598 | |Ellicott City, Maryland e-mail: cherney@home.com | +------------------------------------------------------------------+ From: cdenk@ix.netcom.com Date: Wed, 19 May 1999 21:56:28 -0500 (CDT) Subject: Re: COZY: Brake Linkage Cozy7971@aol.com wrote: > >>- Has anyone used actual bearings (as opposed to teflon or something >>similar) in the aileron linkage other than at the wing root. I have: forward of control stick - ball bearings aft of front seat - plastic (delrin I think) bushings firewall and wing root - stainless steel spherical bushing bearings (look like a rod end with a cylindrical O.D.) Use lighter trim springs, Steve Wright's comment while at the controls. its the lightest control force Ez I have flown.