Any suggestions to how I can reinforce a 750mm glider pink foam wing other than the usual carbon 1 x 3 x 750 mm strip. It currently is out of stock. I ordered a cut to order foam wing and forgot this needed that. The usual kit has a scored channel across to fit that. Thanks

Possibilities might include a strip or strips of fibre tape (unidirectional) top and bottom, pallet strapping, possibly let in a little and glued with UHU Por, cut or sand channels and let in spruce or balsa spars. Or lightweight glass cloth top and bottom applied with thin epoxy or water-based polyurethane?
Pick one and build on!
Cheers,
PeteM

How about going 'old school' and using a strip of 1mm plywood, or even some hard balsa.

It always worked in the past,

.

Originally Posted by eflightray

How about going 'old school' and using a strip of 1mm plywood, or even some hard balsa.

It always worked in the past,

.

Hi Ray .. just started on this hobby for those rainy days here .. I still need to source a bit of balsa sheets next when I get rather heavily on it. Right now it seems shipping is at least 2wks to a month for most products. Am left with just materials from fixing an f3k type glider and the current balsa/foam mini glider I have. In time I would. Cheers

A spool of this stuff will last a life time !
Lighter than carbon , stronger than you need.

https://www.thethreadexchange.com/mi...kevlar_juniors

Originally Posted by birdofplay

A spool of this stuff will last a life time !
Lighter than carbon , stronger than you need.

https://www.thethreadexchange.com/mi...kevlar_juniors

how do you apply this thread?

Carbon fiber arrow shaft, maybe?

Originally Posted by RdRngeR

Carbon fiber arrow shaft, maybe?

looking online .. would a round shaft be just as strong as a strip to reinforce the wing just like the original?

I use Kelvar thread to ...

Wrap the ends of CF tubes to prevent splitting out
Both Wing connection tubes as well as smaller Push rod sized CF tubes
Medium to thick CA secures things after the Kevlar thread soaks and wicks up the CA
just like the Ferrules on Fly Fishing Rods.

Untried but due to thinness of the thread a surface attachment might work well also.
Top or bottom those surfaces

Also Balsa structure Wings can be super reinforced with almost no weight gain.
I have wrapped wings as well as crisscrossed between each Rib bay.
Thin, med, thick CA works good for balsa attachment whatever

Since the thread is so light weight you can get creative with wrapping patterns.
right around the Main spar locatoin is best.
Front view wing section
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><><><><><><><><><><><><><><><><
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At under $20 for 300 yds or more you can afford to get creative and experimental

Originally Posted by birdofplay

I use Kelvar thread to ...

Wrap the ends of CF tubes to prevent splitting out
Both Wing connection tubes as well as smaller Push rod sized CF tubes
Medium to thick CA secures things after the Kevlar thread soaks and wicks up the CA
just like the Ferrules on Fly Fishing Rods.

Untried but due to thinness of the thread a surface attachment might work well also.
Top or bottom those surfaces

Also Balsa structure Wings can be super reinforced with almost no weight gain.
I have wrapped wings as well as crisscrossed between each Rib bay.
Thin, med, thick CA works good for balsa attachment whatever

Since the thread is so light weight you can get creative with wrapping patterns.
right around the Main spar locatoin is best.
Front view wing section
--------------------------------------------------------
><><><><><><><><><><><><><><><><
--------------------------------------------------------

At under $20 for 300 yds or more you can afford to get creative and experimental

hi BoP .. the carbon strip that comes with the foam wing is around .5mm x 2mm x 300 long and is buried on a scored channel underneath the wing ..

Considering that the Foam is one of the softest materials
and that CF is one of the Hardest
I'm counting on Kevlar to strike a reasonable balance at a fraction of the weight.

Originally Posted by birdofplay

Considering that the Foam is one of the softest materials
and that CF is one of the Hardest
I'm counting on Kevlar to strike a reasonable balance at a fraction of the weight.

I've never worked with Kevlar yet am sure just about the same resin and epoxy or CA to go with it.