RE: Hiperbipe
Hi from sunny spain,though not at th moment.I have a 2mtr span hiperbipe just about ready to fly,but i am a little uncertain as to the best CG position for first flights.By my calcs the datum position comes out at 46% of mean aerodynamic chord.This may be fine when i am a bit more familiar with its handling characteristics,but for first flight I think it should be closer to 25%. However, reading other peoples comments,if it is too far forward there may be unexpected pitch problems.I have installed a tartan twin 44cc which runs fine,and the all-up weight is in the order of 22lbs. Can you offer me any help or advice, Best regards. FRED