Doug Keller's slotted flaps

[wzlyyn]

Dan L., You should have a few hours on the plane by now. Just by chance, are you going to put Doug Kellers (Performance STOL) slotted flaps on?

Mark

[Pete D]

Mark,

Doug Keller's flap design will not bolt on to the Carbon Cub flap system. The flap hangers and actuators are of a different design. On the Carbon Cub the inboard flap hinge actually mounts to the fuselage, not the rear spar, relieving the rear spar of a lot of the buffeting loads a Piper style design gets esp with high power, slow speed, flaps down flying. It is quite common to see loose/missing screws and cracked ribs on Piper aircraft around the inboard flap hanger area.

Pete D.

[Dan L]

Dan L., You should have a few hours on the plane by now. Just by chance, are you going to put Doug Kellers (Performance STOL) slotted flaps on?

Mark

Hi Mark, I have 50+ hours on it now. I have flown it almost everyday since I was issued the AW certificate.
I like it more all of the time. It does everything I want it to do. In fact I've had it in a few places I wouldn't have taken the PA18. I'm landing it in shorter distances than I ever did in the PA18 (and it had brake boosters) and it always takes off quicker.

Pete confirmed what I had figured on the exended flaps; that they are designed for a PA18 only and would not fit a Carbon Cub. And with the performance of the Carbon Cub as it is would the extra weight be worth it I wonder?

[wzlyyn]

Pete and Dan


Thanks for the info.. If my memory serves me correct, the original Carbon Cub prototype had them. If so Doug might be able to provide a pair that will fit the attachment set up. Dan brought up a real good point, is the extra weight worth it?


Mark

[Pete D]

The original prototype Carbon Cub had flaps that were one rib bay longer outboard and 3 or 4 inches longer in chord. Not the same thing as Doug is developing for the Super Cub now, but still quite a bit different than "stock" Carbon Cub.

Pete D.