RE: CMP 120 Zero ARF Build thread
hey guys. 46 since my maiden and i cannot stop thinking of what went wrong. Firstly my zero 60 made her emergency landing with damages to the cowl (few minor cracks) and landing gear(ripped the block right out of the left gear). Overall fuse is good and wing intact. Did my pre flight check and all went well. Took off with a slight crosswind but maintained her straight on the runway. 10 meters(half throttle and she was up) off the ground she banked to the left and started bouncing all over(maintaining between hlf throttle and 1/4th). Got her head wind and maintained her level for few seconds till i decided to take her back to land. She was flipping all over with constant resistance as she was forcing to go left and dive. Again flipped all over ( heavy left bank despite correcting my trims and i countered my elevator as she kept trying to dive left). Managed to get her down 100 yards away but i'll have to say she was a handful.<div>She weighs at 8.1 pounds and running on an OS 65 AX. Did the CG at 100 mm as per instruction manual.</div><div>Where did i go wrong?? i added 120 grams to the firewall to level her out with a slight nose heavy and yet i still got the flipping/jumpy move.</div><div>Flew on low rate (Aileron =60% Elevator=60%rudder=80%), expo was on (Aileron=+20Elevator=+15Rudder=+15).</div><div>Just fixed her up and plan to get her up again tomorrow. Any tips? is anything missing on my setup? any mistakes i made(first guess is i may have put too much expo)is my CG right? . Assuming world models recommendation is 100mm@weight of 7.5 lbs (based on .61 recommendation) am i too heavy? i figured that since im using .65 engine, power would have compansated for the extra weight. Would appreciate the advice....</div><div>Taimoor</div>