Can you suggest where I could buy the 1/2 X .014 and .007 carbon fiber tape need to strengthen the inboard spars on E-Chrysalis?
From : Don Stackhouse
I believe you can get it from Composite Structures Technology. It's in
their "Carbon Fiber Laminates" section, at:
http://www.cstsales.com/CFLaminatesUnidirectional.htm
For the electric version or for a sailplane that you only plan to Hi-start,
no, I wouldn't bother. I've been flying the wing on mine without any carbon
since before the end of the last century with no problems.
However, it is probably a good idea to go ahead and do it now if you think
that someday you might want to use this particular wing on the sailplane
fuselage with a winch for launching. Winches are a lot less forgiving, the
lines are stiffer than a Hi-start, and so in addition to the extra stress
generated by the winch itself, the stiffer line causes much higher stresses
if you happen to hit a gust.
Don Stackhouse
DJ Aerotech
| 
May 17, 2008
