Date: Wed, 05 Jan 2000 06:09:02 -0500 From: Jeff Russell Subject: COZY: Re: "Un-Approved Supplier" "Marc J. Zeitlin" wrote: > > People; > > I've listed a new vendor on the "Unapproved Supplier Web Page" at: > > http://cozy.canard.com/newsletters/na_suppliers.html > > This new vendor is "WINGCO", run by Alan Shaw. He has been making > pre-molded wings for Velocities for a few years, and apparently has 50 sets > flying. He's now making wings for L.E.'s and COZY's, although none are yet > flying. He does NOT follow the plans construction methodology. Marc and group, This is why we are building Velocity wings for the Velocity builders. WingCo has built over 180 sets of wings for the Velocity and reported problems from Velocity and people flying are delams and large bubbles arise when you start flying to altitude. Velocity factory said over 70 percent have had problems. The Velocity factory has contracted with a Brazil company to mold a Lancair type wing. The factory is highly recommending the builders to either build their wings them selves or have someone else build them per plans. That is what we are doing for them. Alan uses a top and bottom mold and tries to squeeze the top and bottom skins and spar to the cores all at once. I have seen this process and 3 sets of wings right out of the molds. There were about 30 percent of voids between the skins and the cores that the factory tries to inject out with resin. I would talk to people flying with the Alan wings before I would proceed further. Sorry for this type of news. -- Jeff Date: Wed, 05 Jan 2000 16:06:43 -0500 From: Wayne Lanza Subject: COZY: Re: Molded wings Hi Guys, Regarding the molded wing discussions, here's the latest as I got it from Velocity. The concept and design of the Brazilian built wings is basically sound, there are allot of molded wings out there that are as strong as (or stronger) than our EZ, Cozy & Velocity wings. Glasair & Lancair are most notable. The Brazilian wings did NOT really FAIL the stress testing, rather the deflection tests. They have found that the out-board rib (where wing meets cowling) was not continuous to the back side of the spar/shear web. This ~3" gap would allowed the wing the start to twist AT THE INNER SPAR under load. The photos of this test are interesting, considering the applied loads when they were taken. The rest of the wing was fine i.e. normal deflection. The tests are to be repeated with the extended rib, I will forward this information as I get it. Regards to All & Best wishes for Y2K, Wayne Lanza aka Composite Design _______________________________________________________ "ZEITLIN,MARC (A-Andover,ex1)" wrote: > Jeff Russell wrote; > > > This is why we are building Velocity wings for the Velocity builders. > > ....... The Velocity factory has contracted with > > a Brazil company to mold a Lancair type wing. > > Alan mentioned that Velocity had the first sets of wings from Brazil, and > that they failed the first stress test. I have no independent verification > of this statement - maybe those of you in close contact with the Velocity > factory would fill us in? Date: Wed, 05 Jan 2000 16:08:35 -0500 From: Jeff Russell Subject: COZY: molded wings "ZEITLIN,MARC (A-Andover,ex1)" wrote: > Alan mentioned that Velocity had the first sets of wings from Brazil, and > that they failed the first stress test. I have no independent verification > of this statement - maybe those of you in close contact with the Velocity > factory would fill us in? Scott at Velocity said that the wing that was tested "did" fail in what they wanted to see for tested results. The biggest reason at this time that it failed was the jig to hold the wing was just some 2x4 lumber and the lumber was allowing the wing to bend more then if the jig was less flexible. Scott has the set on it's was so they can jig and load test them at the factory instead of just seeing pictures sent from Brazil. I will let you guys know more on the molded wing when I know more. -- Jeff