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Future of Composites - 5/13/2004 3:46:39 AM   
daven



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I've been thinking of the composite Q500's that have come and gone, and when you think about it, there is really only three that are being produced in any quantity.

Terrence has a HUGE backlog on the Neme, Chuck has cut back on his Vortex's, and Bruce has Shotguns available, but I'm not convinced they are as fast.

Are we entering a period where we will be in short supply of FAST composite Q500's?????

Do any of the current Balsa/Foam manufactures plan on putting out a composite version??

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RE: Future of Composites - 5/13/2004 11:48:55 AM   
luv to race


 

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Don't forget that, Lyle is still selling the "Bird of Prey". Which is the same wing that Gino DelPonte puts on his airplane.....

I talked to Tim Lawlor a few weeks back and he was wanting to sell his molds for both the Q40 and the V-Max. If someone wanted to start producing the V-Max, there you go....

Terrance has kind of stole the market with his awesome craftsmanship, at a pretty good price. We will see if he can keep up with the growing popularity of his plane.....?

RB

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RE: Future of Composites - 5/13/2004 3:26:07 PM   
daven



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I did forget about the Bird, but I've never been convinced it is on par with the Neme or Vortex's of the world. It is a better value, but you do have to do a bit more work with it to get it ready. With its newest wing, it does seem more competitive, that is if the wings don't explode

Terrence must have a big backlog, mines been on order since I lost my last one at the Winterfest. Hopefully it will be ready soon.

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RE: Future of Composites - 5/13/2004 4:12:12 PM   
SSAN



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quote:

ORIGINAL: daven

Do any of the current Balsa/Foam manufactures plan on putting out a composite version??


Dave,

As you know, I've been working on the SAM-RAI in wood form for a while and will be doing a composite mold in the near future.

Currently, I have one of the guy here doing the coordinates for me and will move forward to get it CNC cut once it's ready. Although, he seem to be having trouble in those coordinates from what I wanted so I don't know when it will be available. Another thing is, cost is BIG factor cause I only have $4500 now to spend for the wing and tail, and I was told by Jim Allen it cost approximate $7500 to complete the mold. Ouch! That's quite steep for me so I don't know when this will actually materialize. But we'll see what happen...

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RE: Future of Composites - 5/13/2004 6:02:39 PM   
Ed Smith


 

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To try and make a living producing racing airplanes is chancy at best. It is not possible to produce enough in a week to live on. If the todays fad is one design then all the others will suffer, until something else wins. So, the succesfull supplier has a large backlog, to meet the demand the production is sub-contracted. Now the quality goes down the toilet. Everybody now buys a different airplane and the whole merry cycle starts all over again.

Ed S

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RE: Future of Composites - 5/13/2004 6:54:32 PM   
splatt



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composites , shumposites ... You need know somebody who know somebody to get in line for one of the precious few fast planes that are out there. It's big turn off for me. Of course the way I'm going through planes this year it's all a wash for me. Good luck to all that can get the good stuff

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RE: Future of Composites - 5/13/2004 7:40:17 PM   
SSAN



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Ed,

I agree with you totally. However, I'm doing this as a hobby and will do this on my spare time to compensate for my own racing cost. Granted, if no one buy it, I would have unlimited resource for my own personal use.

One other thing... I take this as a challenge to build the best Quickie that I can within the rules allow, and be proud of the accomplishment if things works out. Nothing more and nothing less!

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RE: Future of Composites - 5/13/2004 7:50:15 PM   
ColeThornton


 

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u know sammy, if u give me a fuse, tail, and wing, i can get the cordinates for u real fast...i have all the right equipment to do this with a quikness at my machine shop class...if u give them to me at the race this weekend i could prolly fax u the specs for the fuse, tail, and wing in about another few days...give me a call and we can discuss it.

Cole


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RE: Future of Composites - 5/13/2004 7:53:23 PM   
daven



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Anyone can order the good stuff.

Lyle, Terrence, Chuck, and Darroll are all approachable and extremely friendly.

You may have to wait 6 months, but anyone can order them. You just gotta look out a bit, and hope you need the plane when its ready.

I'm hoping to have wings molds made this summer for the Seeker. Not so much to sell, but to assure that I have a decent source for wings going forward that I can hopefully save a little money on by building them myself.

Dave

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RE: Future of Composites - 5/13/2004 10:05:21 PM   
garys


 

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Dave is right, the manufactures are all very helpful.

The biggest problem with composite airplane supply is that they can only be produced so fast. You can only build two wings per week out of a mold (at the most), assuming you're going to work on them every day. With the unpredictability of airplanes staying competitive, it's hard for the manufacturer's to justify multiple sets of molds. Now take what happens if an airplane wins a major event--Suddenly they get orders for 15-20 more airplanes, and are now backed up for almost three months. At one time, Terrence had a back-log of close to forty Neme-Q's....

Gary Schmidt

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RE: Future of Composites - 5/13/2004 10:43:30 PM   
PylonWorld



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One thing that has hurt the production of composites is the "no composites" rules that many groups have implemented. When you are limited to selling only to the 428 audience, some of the above comments apply.

But there are composites out there that aren't produced simply because a certain design is currently the 428 favorite. One that was shown on the NMPRA site had a decent price. I think it was Marty Hoppe's.

The price for a Shotgun is nice, and I'm sure it would be a great 424 plane.

I engineered the Smasher for mass production. The fuselage and tail molds were done sometime around a year ago. But I wanted to make male molds so that I can produce additional molds for myself or for production. I've partially completed the male molds.

I built the Smasher for myself. So that I can have the airplanes at a reasonable cost. The original plan was for it to also be produced in China. But with the "no composites" rules in effect, I haven't been exactly motivated to get it to China and into production.

Ironically, composites are flourishing in IMAC and other disciplines that didn't come up with "No composites" rules. A lot of composites are flown as sport planes.

The only reason that composites may have driven away some racers earlier was that some people were lucky to have them as ARFs. There were no Predators or Viper 500's at that time. It is time to drop the "no composites" rules and allow people to use whatever meets the Quickie airframe rules.

< Message edited by PylonWorld -- 5/13/2004 5:53:39 PM >


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RE: Future of Composites - 5/13/2004 11:09:48 PM   
DHG


 

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When you spend $7500 for a CNC-machined aluminum wing mold, what are you getting for your money? A highly accurate, mirror-finished cavity in which to lay up pre-formed, epoxy/glass-coated wing skins, then press them together over a spar structure using epoxy paste as an adhesive. Right so far?

It seems to me you could get basically the same result using CNC-cut foam, faced with Mylar.

The airfoil-shaped foam "core" cut out of the middle of the foam block would not actually become part of the wing, but could be faced with Mylar and used as a press (with the help of vacuum bag pressure) to force the upper and lower wing skins against the inside of the cavity until the epoxy/glass skin coating cured. After that you'd simply open the vacuum bag, pop your pre-formed skins out, remove the core/press thingie, and insert your spars and internal structure. Weight it down with bricks until the epoxy paste cures, and you're done.

I used a similar process on some Stinger wings, but because of the compound curves I couldn't use Mylar. On a Q500, however, you wouldn't have that problem. The constant-chord wing should make this process a snap. If the Mylar gets grubby after a while, just cut a new piece and replace it.

The first person to try this, please let me know how it works. Then send me half of the $7500 I just saved you.

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RE: Future of Composites - 5/13/2004 11:55:24 PM   
garys


 

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Don,

I've said this before, and I will always say, composite Q500's hurt the APRA class in the mid 90's, until they were outlawed. Mike DelPonte sold hundreds of his Revlutions in an ARC form, and a lot of them as full blown ARFs for about $400 each, even for APRA. People didn't complain or quit racing then because they knew they could build an equal airplane themselves for much less. When the composite airplanes showed up and were winning (even for essentially the same price as DelPonte's), people started ****ing. They didn't care when the $400 dollar airplane (that was built like their home brewed airplane) won, but they ****ed when they saw the $425 V-Max win, because didn't have the skill or equipment to make their own molded airplane.

It has been said numerous times that if the reported $200 molded Q500 comes along, it would be allowed into APRA. Just remember though, if the price were to get elevated to where people start ****ing about it, the rule can be changed just as easily as it was added. That's the biggest reason I feel that the 424 level classes shouldn't have to be exactly by the AMA book. The AMA rules are just way to difficult to get changed if a problem of any kind arises. The three year rules cycle is too long. If you plan on keeping it at $200, please do everything you can to make it happen!

Yes, you see a lot of composites showing up in other events. The only thing is, what's the average life span of a glider, IMAC, pattern, or sport plane, versus a Q500? I think it's easy to justify paying twice as much for a composite airplane when you know it has a good chance of lasting a full season or more. How many people get racers expecting them to last that long?

Duane,
Actually Kevin and Chris Callow (current F3D World Champs) made a few wings like that back in the late 90's. They were good, but still not as accurate as a wing built from a true mold, and still needed a lot of work to finish (tips, etc). The way the current molded airplanes are made, you have very little finish work to do once they are pulled from the mold.

Sam,
Nothing says you must have machined molds. The V-max was made from conventional fiberglass molds. There are several places you can get molds, and even plugs made, for several times less than machined molds.

Incidently, as Randy said, Tim Lawlor is looking to sell his molds. I think the V-Max is probably as good as any other plane out there, and better than most, it just hasn't been flown by as many people the last few years. If somebody wanted a set of molds for themselves, or to produce, there's a proven airplane ready to be reintroduced...

Gary Schmidt

< Message edited by garys -- 5/14/2004 12:06:14 AM >

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RE: Future of Composites - 5/14/2004 1:31:02 AM   
bl10


 

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Don:

Gary is exactly right about the effect composite airframes had on sport (APRA) quickee. If we hadn’t passed the no composite rule I believe APRA racing on the west coast would be dead now. With the introduction of composite planes we saw APRA entries go from 20 to 3 in the space of 3 years. With no composites entries are once again at the 15 to 20 level. Like G