WanaBNACub
Registered User
Off Airport
When I made the decision to put the PSTOL flaps on I told our engineers that I wanted to do a little unscientific testing to try and see exactly what the real world performance differences are between the Performance STOL, double slotted, Fowler type flap system and the stock flaps. We have heard lots of people that are running them talk about the differences they had experienced. No one we have talked to has regretted the decision to put them on, but I have learned that "some" pilots exaggerate numbers from time to time. They made up a simple inclinometer to hang across the tubes over the back seat and I put a gopro on it to show the exact deck angle in 5 degree increments. In level flight I "zeroed" it by lining up that longer center mark with the pendulum. I also put a gopro on the airspeed indicator to show the touchdown speed. I had put 5 landings on the flaps after we installed them and then 10 landings for the video test. Since this video I have gotten used to flying them more and could improve on those numbers quite a bit. Power on stall speed went from about 30mph at 1600 rpms down to 21mph at 1600. I have had the touchdown speed as slow as 25 now with no wind.
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