I am replacing the really old vertical speed indicator in my 1966 Piper Cherokee
180. Most likely with a United unit or UMR unit. Any explanations why the United unit is nearly twice the cost of the UMR unit? Both are TSO'd and new. Appreciate replies.
Airdan235.
180. Most likely with a United unit or UMR unit. Any explanations why the United unit is nearly twice the cost of the UMR unit? Both are TSO'd and new. Appreciate replies.
Airdan235.