On 11/1/2010 7:10 PM, Darryl Ramm wrote:
On Nov 1, 4:15 pm, Greg wrote:
On 11/1/2010 4:07 PM, Bob Kuykendall wrote:

Where do those big holes in the spars of composite gliders come from?
You know, the ones where they put the bushings that you insert the
main pins through?

Somebody with a big drill drills them.

http://www.youtube.com/watch?v=FZ3rISscO2I

Thanks, Bob K.

http://www.hpaircraft.com/hp-24

Interesting to compare your technique with the way it is done at Jonker
Sailplanes:

http://www.jonkersailplanes.com/factorypictures8.htm

Impressive looking jig, but it also looks like they are using filter
respirators for what they are spraying the wings with, which looks
like a topcoat. Wonder what they are spraying...

Polyurethane, it says. One hopes that in their new paint booth they
have a healthier system.



Darryl