RE: Super Sportster twin...
Did the test flight on the Super Sportster 60 twin today. I had two problems with the right engine. The idle mixture was set way to rich. It took about 30 minutes to have both engine in sync. The first problem was the ground handling is not very good with the set rudder throw. To fix this, I will have to trim the elevators to allow more rudder throw. Take off was fairly short, maybe 40 ft. With a fast climb out. This plane is fast - somewhere around 90 - 100 mph. Well two minutes into the flight the right muffle end came off. Shortly thereafter the right engine died. This is a bad thing two minutes into the first flight. This gave me a chance to see how it would fly on one engine. At half throttle it will fly it will almost fly hands off with very little rudder input. On landing Mother Nature decided to throw some gusty wind my way, just to make the landing a little harder. At about fifteen feet above the runway, I hit a gust of that ballooned the plane up 8 feet. I add power and down elevator to stop a stall, but I was behind the power curve. The result was a broken right wing and broken left prop. No other damage.
Specs
Wing span 72”
Wing area 864sqin
Fuse per plans
Engines OS 55AX with Master Airscrew 12x6 prop
Rudder has one inch added to leading edge
Wt is 9lbs 1oz
Now do I fix this wing or build a new wing? This plane will be a lot of fun once repaired.