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.

What a gorgeous fall scene. I think we need to get these approved on Pacers.

They would be amazing on pacers!

I want those on my Pacer. Fantastic!
Charles

Sure would love a set for my Carbon Cub...

What a great test, and a great advertisement for these flaps. I hope they cut you a discount!

Thanks for doing all the work to set this up, record everything, make a video, and share the results. Really useful.

Performance STOL flaps, coming soon to a Bearhawk near you...

Man... if I had the budget for it a set of those would be on my experimental Pacer...

CamTom12 wrote:Man... if I had the budget for it a set of those would be on my experimental Pacer...

So, Cam......you want to eat AND fly!

MTV

mtv wrote:

CamTom12 wrote:Man... if I had the budget for it a set of those would be on my experimental Pacer...

So, Cam......you want to eat AND fly!

MTV

I know, I know - I'm asking a lot here

Battson wrote:What a great test, and a great advertisement for these flaps. I hope they cut you a discount!

Thanks for doing all the work to set this up, record everything, make a video, and share the results. Really useful.

Performance STOL flaps, coming soon to a Bearhawk near you...

When? Are there any installed and flying on a Bearhawk yet?


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Excellent AK. Really good stuff.. I love seeing actual testing. I'd say its scientific enough. And what's better its way better than anecdotal comments!

gunny

I want some for my S-7, yesterday! Less deck angle, slower, what's not to like? A bit extra weight that's what, but worth it.

Nice!! I really like the low deck angle!!! Now, if only I had a Super Cub type airplane.