Guys with speed brakes. Do you always do a full deployment of your brake or do 
partial deployment as needed? ?I have internal limit switches in my actuator. 
So all I need is a on on switch. ?Or if I want to stop in the middle. ?I would 
need a on off on. This would be on my ?stick grip.?

Paul Visk?Belleville Il hello618-406-4705




Oscar did the calculations for the FLAPS on my KR with full flaps deployed to 
37?, which is likely a little more area than most belly boards, but similar in 
loads.? The load calculation gave me a safe speed for full flaps of 100 mph IAS 
with a 10% gust load factor.? I have had partial flaps out at much higher 
speeds, but I always keep in mind that the calculation for full deployment was 
for 100 mph, so marked the ASI and fly the plane accordingly.? I don't think 
the limiting factor was the flap mounts so much as the strength of the flap 
around where the actuator arm mounts to the flaps.? I ended up using the flap 
actuator sold by Vans for an RV.? It is larger and heavier than what I needed, 
but at the time that I did this installation the cheap Chinese electronics 
weren't so readily available to us and I was running into a lot of difficulties 
trying to procure the actuator I wanted.

FWIW, both my ailerons and flaps are mounted with countersunk #8 machine screws 
into self locking nutplates floxed to the back side of the false spar.? One 
thing that I almost always do with self locking nutplates is to run a tap 
through them before?

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