The Cold Duck has been flying for over four months now and after a great day of flying it today I thought I’d update the thread.

I’m very pleased with the way it flies. Very light and gobs of power for unlimited vertical and loops as big as you want. It is truly a joy to fly! Everyone that has seen it fly comments on how smooth it is.

Early on I had a problem with the RJL carbs that were on the oldest of the three engines. I put the newest carb on the older engine and it worked perfectly. RJL customer service quickly resounded to the problem and said it was related to the size of the low speed needle valve end. The RJL engine is excellent and their service is superb.

Increasing the horizontal stab and elevator size was a good change and I think it has improved the flight characteristics over the original. It will make very slow, nose high landings that are pretty neat. There is plenty of elevator power.

The main gear was a little bit too long and created too much of a nose down stance and I solved that by reforming the gear wire out further.

At 5 lbs 7.5 oz it is a little light in gusty wind but it is super smooth when the wind is steady. Even with the light wing loading it can be commanded into spins well including easily changing spin direction while in a spin.

My only regret is not building it with tri gear retracts. The extra weight of the retracts would have not been a problem at all.