I installed a down flap down limit switch on my RV-7A and have been flying it for almost 5 years now without any issues with the limit switch setup.
One reason I wanted to install the switch was to limit the flap extension so that I never have the dreaded bent skin condition when someone bumps an extended flap, the under lapped flap skin pops up from under the top skin of the wing and the flap is then retracted. That is a bad day.
So I have posted the link to my installation here so it might help other builders considering putting a limit switch in.
http://www.experimentalaero.com/Flap down limit switch.pdf
It is also on my website under the Builders Tips tab.
One reason I wanted to install the switch was to limit the flap extension so that I never have the dreaded bent skin condition when someone bumps an extended flap, the under lapped flap skin pops up from under the top skin of the wing and the flap is then retracted. That is a bad day.
So I have posted the link to my installation here so it might help other builders considering putting a limit switch in.
http://www.experimentalaero.com/Flap down limit switch.pdf
It is also on my website under the Builders Tips tab.