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Forum: Scale Racing

02-24-2002, 05:57 AM

Replies: 116

Composite racing wing

Views: 23,937

Posted By Darrinc

Composite racing wing

flugzoid,

Yes, that can happen as the air is sucked out at different places at different times.

Made your mold strong!!!!!!!!!

Darrin C

Forum: Scale Racing

02-21-2002, 05:52 AM

Replies: 116

Composite racing wing

Views: 23,937

Posted By Darrinc

GREAT JOB

Well, I meant on molds where it is basically impossible to put tape in there unless the ends are open (like my mold). What type of "splooge" - material mixed with the epoxy to give it strength do you...

Forum: Scale Racing

02-21-2002, 04:05 AM

Replies: 116

Composite racing wing

Views: 23,937

Posted By Darrinc

Composite racing wing

The wax we us is Meguiars Mirror Glaze No.8

What direction are you laying up your glass? I would suspect you are running the weave at a 45° from the mold, this will give you the torional strength...

Forum: Scale Racing

02-21-2002, 02:39 AM

Replies: 116

Composite racing wing

Views: 23,937

Posted By Darrinc

Sorry

I don't mean to keep posting, but I teach a composites class and I am just trying to help by throwing out some different ideas.

We use Meguires Molds release wax which is very paint friendly and...

Forum: Scale Racing

02-21-2002, 02:20 AM

Replies: 116

Composite racing wing

Views: 23,937

Posted By Darrinc

Composite racing wing

I have never used Rohacell, but anything that has porous surface needs to be filled in this manner. I built a 22.5lbs 33% Extra 300SX out of Divinycell last summer, so I have gained a lot of...

Forum: Scale Racing

02-21-2002, 01:30 AM

Replies: 116

Composite racing wing

Views: 23,937

Posted By Darrinc

Composite racing wing

One bit of advice on the Divinycell, you must fill the cells in the outer layer of the foam or you will be back to having a sponge that soak up your resin. Right before you lay up your piece, mix...

Forum: Scale Racing

02-20-2002, 11:19 PM

Replies: 116

Composite racing wing

Views: 23,937

Posted By Darrinc

Composite racing wing

One question,

What are you doing to the 1/16" balsa to keep it from absorbing to much resin? My experiance shows me that the balsa acts like a sponge.

I have heard of people using AquaNet...

Forum: Scale Racing

02-20-2002, 11:07 PM

Replies: 116

Composite racing wing

Views: 23,937

Posted By Darrinc

Prepreg

Mluvara,

You might want to consider using Prepreg fiberglass and carbon fiber. This material already has the epoxy in the cloth and allows you to preform very consistent back to back layups. The...

Forum: Scale Racing

02-19-2002, 12:39 PM

Replies: 116

Composite racing wing

Views: 23,937

Posted By Darrinc

Composite racing wing

Mike,

I was wondering when you would find this. :D :D :D

He has some great pics!

Darrin C

Forum: Scale Racing

02-19-2002, 06:45 AM

Replies: 116

Composite racing wing

Views: 23,937

Posted By Darrinc

Composite racing wing

Once again, great job!!!

I am in the middle of making a plugs for my 35% Extra 300SX.
The plug for the fuse is 89" long and is a monster, while my wing plug is has a 44.5" span and is 23" at the...

Forum: Scale Racing

02-17-2002, 04:53 AM

Replies: 116

Composite racing wing

Views: 23,937

Posted By Darrinc

Great job!!!!!!!!!!!!!!!!!!!!!

Fantastic!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Keep it up. I love this hobby!!!!

Darrin C

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