Sigma Sailplane
Many thanks for the Sigma links, India Four Two as it does include a general arrangement drawing plus wing sections.
Not too sure of the runway location but can ask next time I email.
I do have 3 original photos of the 10' test specimen of wing that was built showing the flap in and out plus some info of dad as to how the flap mechanism worked but I note that the Sigma thread is closed.Is it possible to get it re-opened?
Off to see him next weekend so any questions?
Last edited by roys; 12th Dec 2010 at 21:19.
Reason: wrong name