RE: Seagull Extra 300 - 75 assembly thread.
It came out looking pretty good I think. The AUW was 7 lb 10oz and it balanced perfectly at 4" back from the leading edge right beside the fuselage with 3oz lead on the tail.
I took it to the field today for the maiden flight. I had a nice breeze right down the runway. After I got the engine tweeked, I taxied out to the centerline and pointed it into the wind. I advanced the throttle very smoothly and it tracked pretty straight with just a touch of left rudder. Lifted off in about 60' and flew straight with a gentle climb. A couple of passes to check the trim, it took two clicks of up trim on the elevator and she was flying straight and level. I was impressed.
I made several passes and did a couple of rolls to get comfortable with the handling. I then went up high to check the stall. It dropped the left wing and rolled on the stall. I added a little power and she was flying again. I was then ready for my first landing approach. The first attempt was too high and too fast and I had to go around. The second attempt was perfect. I came in with 1/4 throttle, it has a very predictable sink rate and the landing was very smooth on short cutgrass.
I am very happy with this plane. My first flight was with a Pro Zinger 12 X 6 prop and was not very strong. I changed to a Pro Zinger 13 X 6 and it was much better. I believe when this engine is fully broken in it will be a powerhouse.