Do these arms lock in place meaning you need to press a button to unlock them or is this strictly a friction fit?
I would not be impressed if the arms stayed in place with friction meaning they could get loose over time and move in flight if doing some hard flying on a windy day. Dangerous.
I would not be impressed if the arms stayed in place with friction meaning they could get loose over time and move in flight if doing some hard flying on a windy day. Dangerous.