Ball and screw u/c mech
hello all.
I'm considering installing a ball and screw mechanism as an undercarriage retraction system on a home-built.
Now, the problem with this low-friction mechanism is it requires a positive mechanical lock to hold the gear up. (current system is a screw jack which can't be reverse-driven).
I believe that there is a certified aircraft in the Piper/Cessna range that uses a solenoid brake to achieve this and would like to know more about both it's construction/design and indeed exactly what aircraft has this system fitted.
Can anyone help?
Thanks in advance