Flap to fuselage closeout for SS??

[BDA]

So I have seen a couple of threads on here about the closeout, or gap filler piece from the flap to the turtle deck on the Highlander making a performance gain.

Has anyone done this on the SS??

Was it worth the effort??

What was the Benefit?

[Johnny C!]

I have that started for my Trilander,
but it has been on the back burner
for a while.

I streamlined the trailing edges of
my mains before I covered them, and
made fairings for my tail dragger main
gear mounts. I have a few other things
planned, including wheel pants. I have
the plugs & brackets made for the mains,
but I still need to make the plug & brackets
for the nose wheel.

I posted a complete list of my intended mods,
some time back in one of the threads here.

Every little cleanup mod will add up
over the life of the aircraft.

John

[kenryan]

I noticed that Robbie and Keith did not do it on their latest airplanes.

[Familyflyer]

I did the close out when I built mine. I feel it looks way better but do not know the difference in performance.

Link here for reference.
http://www.wingsforum.com/viewtopic.php?f=218&t=23046

[BDA]

Thanks Troy!
that helps, very nice work.

Can you post some basic performance numbers with engine and prop size so that we can compare - and maybe make an assumption on performance gain??

I am more interested in Flap performance improvement or slow flight characteristics personally - but any numbers you have are good!

Stall speed? - partial flaps - full flaps?
cruise speed?

Thanks
Shawn

[Familyflyer]

I do not own the airplane any more, sold it and build this an CC EX2. I fly with the new owner often enough though so I will get some numbers...to long ago for me to remember numbers in detail. My memory is this. It has a Catto 84X41. Cruised 85mph. Slats popped out at 45 light and 50 heavy. I will get accurate stall numbers. Never did high power stalls up high as I think the airspeed would not read the number. Stick in your gut power off is did a high descent in the low 30s if I remember right.

[Clark in AZ]

Beautiful Cub Troy! Is it all that you hoped it would be? How does it compare to the SS?

Thanks,
Clark

[BDA]

Nice CC
Needs slats tho!!

Thanks for the numbers

Can anyone that does not have the flap closeout compare their numbers??

[Familyflyer]

Nice CC
Needs slats tho!!

LOL.

I actually don't like slats. Sure you can get a really high AOA but then you can't see that log or big rock in front or the right-front of you when landing. I personally feel that a high AOA looks cool and slats makes a really safe airplane that will not spin but it stops there. Being able to see where you are going is a much bigger advantage when dealing with obstacles.

[BDA]

I agree with you completly

high angle of attack does not make a better landing
UNLESS
you can go significantly slower.

and see the rock on flyby then land short enough to miss it

but yes
landing blind is a problem