Showing posts with label 103. Show all posts
Showing posts with label 103. Show all posts

Wednesday, March 3, 2010

Flying the Superlite...

The first hints of spring are emerging in Wichita. Finally, we are seeing temps in the 50's and 60's. Yesterday was such a day, which was perfect timing as the Superlite was ready to fly again.

Since Sebring, we moved into a new shop out in the countryside. We've seen deer, all kinds of birds, it's great to have wide open fields and a grass strip right next to our workshop door.

The lift strut was redesigned; the new approach is easier to fabricate. Our thought process has been to ready the airplane (and wings) for some heavy loading tests.

So I flew the plane, late yesterday afternoon and early this morning. The tests were meant to explore the top cruise speed of the Superlite and to verify stall behavior.

I flew several passes at an altitude of about 2000 feet. Winds appeared calm at altitude, with runs in both directions producing GPS verified speeds of about 57 knots -- 2 knots too high. We will either reduce engine power by another 50RPM or substitute a climb prop (at which point this little bird will no longer climb like a bottle rocket, it will climb like an space rocket).

I noted that the indicated air speed for 57 knots was around 73mph. I'll be substituting another air gauge in the near future to resolve this gross inaccuracy.

I then did several power off stalls with full flaps. Indicated air speed was around 33 mph -- remember, the gauge reads way high -- and the stalls were just a gentle bump.

When we get the Superlite tuned up, focus will return to the Trike. Both birds will be at Sun N Fun for show and flight!