Greetings to All!
Just embarked on building of kit 406LC The Focke-Wulf190 A-3.
Having read through the plans and build sheet several times I'm faced with a question. This is to be a rubber powered
"out-of-the-box" flier, and therefore I am trying to save weight where I can (of course).
The question is : Is the vinyl Main Spar a requirement for a "wheels-up" rubber powered flier? Obviously if the wheels were to be in the "down" position it's a no brainer, but, with wheels "up", or, (omitted) do I still need the vinyl?
The main spar is obviously for the strength of the wing, but I keep hearing how GUILLOW'S aircraft are over-engineered for strength,... thus the question.
Thanks in advance for your consideration!
Henry