Q40 Foam wing

Q40 Foam wing
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Q40 Foam wing - 3/5/2008 12:44:53 AM

B.P.R.

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From: Pisa, ITALY
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A friend asked me if it is possible to make Q40 Foam wings .........I answered "Yes you can" ..but I do not have any photos or document..............Please , Someone knows something link or build log thred ?
Thanks
Paolo P.

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RE: Q40 Foam wing - 3/5/2008 2:18:02 AM

sahartman21

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From: Fritch, TX, USA
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It is very possible to produce a Q-40 with a foam wing.

I recently built one of Matney Models Napier. Kevin is the owner. I am now building one of his AJ-2.

Napier construction is shown on a forum in Pylon Universe.

I just started another construction forum on the AJ-2. The AJ 2 forum is on the NMPRA site.

Below is a link on Matney Models:

http://www.matneymodels.com/qm.html

< Message edited by sahartman21 -- 3/5/2008 2:19:04 AM >

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Post #: 2

RE: Q40 Foam wing - 3/5/2008 7:31:01 PM

B.P.R.

Posts: 53
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From: Pisa, ITALY
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quote:

ORIGINAL: sahartman21

It is very possible to produce a Q-40 with a foam wing.

I recently built one of Matney Models Napier. Kevin is the owner. I am now building one of his AJ-2.

Napier construction is shown on a forum in Pylon Universe.

I just started another construction forum on the AJ-2. The AJ 2 forum is on the NMPRA site.

Below is a link on Matney Models:

http://www.matneymodels.com/qm.html

Thanks of info..

I Looking specifically link (in Forums or web ) where you can see building the Q40 foam wing ....Strengthen , paste, paint ecc...
Ciao Paolo P.

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RE: Q40 Foam wing - 3/5/2008 7:35:59 PM

B.P.R.

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From: Pisa, ITALY
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Yes.......i have see now in NMPRA forum the aj2 build log

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RE: Q40 Foam wing - 3/5/2008 8:55:43 PM

garys

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Paulo,
I think the AJ-2 build is going to be powered with a Thunder Tiger enging, so the wing probably won't be built strong enough for a Nelson. With a proper spar, carbon fiber, and other reinforcements, I'm sure a foam wing can be built strong enough, although I've always used molded wings in Q40.
Gary

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RE: Q40 Foam wing - 3/5/2008 9:30:27 PM

daven

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From: Andover, MN, USA
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Does anyone have one of Lyles old videos of him doing a wing for Formula 1?

I think I have a copy somewhere, but not sure I could find it.

I think that might show Paulo some good techniques, but if I remember right, Lyle didn't believe in using CF strips on the spar at that time. I rember him holding up a metal ruler and showing how it would flex and bend, and that CF would do the same??

Still had some good stuff in it.

Would love to see a video of Terrence or Chuck laying up a complete Neme or Vortex.

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RE: Q40 Foam wing - 3/5/2008 10:41:09 PM

sahartman21

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From: Fritch, TX, USA
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Paulo,

The wing construction photos that are on the site are from an AJ that is currently being flown with a Jett SS.

1) The wing has carbon fiber on both the top and bottom.
2) The wing is joined with three 2 ounce layers of glass.

My Napier is currently being flow with a Thunder Tiger Pro 40. At least initially the AJ 2 will also have the same motor.

Kevin is flying his models with high powered Q-40 engines. I would think that if care is done during construction that another could also be flown with a new Jett or Nelson.

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RE: Q40 Foam wing - 3/5/2008 10:47:06 PM

B.P.R.

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From: Pisa, ITALY
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quote:

ORIGINAL: garys

Paulo,
I think the AJ-2 build is going to be powered with a Thunder Tiger enging, so the wing probably won't be built strong enough for a Nelson. With a proper spar, carbon fiber, and other reinforcements, I'm sure a foam wing can be built strong enough, although I've always used molded wings in Q40.
Gary

Yes , i know....
Years ago i make many foam wing , also for F3D ...... often teach to friend the techniques it is easier with photos..
I wanted to try something ready(forum or web-site) for Italian friends who want to build Q40 foam wing....Especially for beginners who want to spend little money

PP

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RE: Q40 Foam wing - 3/5/2008 10:54:39 PM

B.P.R.

Posts: 53
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From: Pisa, ITALY
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quote:

ORIGINAL: sahartman21

Paulo,

The wing construction photos that are on the site are from an AJ that is currently being flown with a Jett SS.

1) The wing has carbon fiber on both the top and bottom.
2) The wing is joined with three 2 ounce layers of glass.

My Napier is currently being flow with a Thunder Tiger Pro 40. At least initially the AJ 2 will also have the same motor.

Kevin is flying his models with high powered Q-40 engines. I would think that if care is done during construction that another could also be flown with a new Jett or Nelson.

OK
I follow also your link on NMPRA

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RE: Q40 Foam wing - 3/6/2008 1:00:15 AM

Kevin Matney

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I have DVD full of pics on how to make a wood for Q/40. I give them to he who buy my kits. Done right a wood wing is as good any full composites wing may be better.
some pic to come later.

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RE: Q40 Foam wing - 3/6/2008 4:30:50 AM

HighPlains

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Carbon fiber on the top skin is wasted, since it does little in compression. The balsa skin (3/32"

does that function quite well.

The three layers of 2 oz glass with staggered widths on the center is good, much better than a single layer of 6 oz cloth since it prevents forming a stress concentrater. On each layer, make the width double on the leading edge as the trailing edge.

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RE: Q40 Foam wing - 3/6/2008 12:24:42 PM

Ed Smith

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I have always built my own foam wings for Q40 and Q500. I have always kept the weight of the airplane to within a couple of ounces of the minimum. None have ever failed.

All of the wings in the picture are foam core wings.

Ed S

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RE: Q40 Foam wing - 3/6/2008 3:04:27 PM

Kevin Matney

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But if you use carbon as a vertical spar and carbon on the bottom for tension they work great.

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RE: Q40 Foam wing - 3/6/2008 6:42:42 PM

Ed Smith

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Pretty much what I do Kevin. I use vertical spar, 1/8 lite ply with carbon tow on either side.

Ed S

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Post #: 14

RE: Q40 Foam wing - 3/6/2008 11:00:17 PM

B.P.R.

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From: Pisa, ITALY
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.....

It's Interesting

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