skywagon8a
MEMBER
SE Mass MA6
AKT, Your flaps are double the length of the certified 3 mph ones. I would expect a lot lower speed in your plane.
On reading the web site for the flaps, it mentions a stick shake at stall - for those who fly with the experimental variety, it that a noticeable effect? Was it addressed in the STC?
There you go Tom, that would be an easy install while you have the wings off!
Flew the new Airframes Alaska/Keller flaps on my cub this weekend. Very nice performance change. Slower stall speeds, when stalling just tries to hang on without dropping wing, more sink if behind the power curve, stays pretty wings level until forced into full stall. Flatter deck angle for landing. On takeoff, once power applied the tail comes up on its own, no need for any forward stick, just pull back and liftoff. Same with rear passenger aboard, just tail comes up on its own. I have a helicopter airspeed, indicates below 30 mph with some power in slow flight, gps verifies that. Not radical nose high like before. All regimes with flaps very docile. If one is going faster than about 50 mph, each notch of flaps raises nose a bit, does not happen much when adding flaps below 50. Placarded no flaps above 70mph.
All very worth the cost in my view. I like them. See pictures in earlier post.
John
Thanks for the report! Couple questions.....Are the forces on the flap handle any greater to deploy the Keller flaps? Do they droop at all when retracted? I’ve read about that problem on the larger, multi hanger exp. versions. Do you have more than two notches and where are you leaving them for takeoff or are you popping them? After painting, how much weight did you gain? Sorry for all the questions and if you answered some of them earlier I apologize!Flew the new Airframes Alaska/Keller flaps on my cub this weekend. Very nice performance change. Slower stall speeds, when stalling just tries to hang on without dropping wing, more sink if behind the power curve, stays pretty wings level until forced into full stall. Flatter deck angle for landing. On takeoff, once power applied the tail comes up on its own, no need for any forward stick, just pull back and liftoff. Same with rear passenger aboard, just tail comes up on its own. I have a helicopter airspeed, indicates below 30 mph with some power in slow flight, gps verifies that. Not radical nose high like before. All regimes with flaps very docile. If one is going faster than about 50 mph, each notch of flaps raises nose a bit, does not happen much when adding flaps below 50. Placarded no flaps above 70mph.
All very worth the cost in my view. I like them. See pictures in earlier post.
John