Aircraft parts 2 1/4 Aircraft Speed Indicator Gauges BK-37 # Airspeed Indicator # 2 1/4 Dia # Range :20~100mph # Part No. BK-37 # Weight: 85g Part No: BK-36 2 1/4 20~80mph 85g BK-37 2 1/4 20~100mph 85g BK-38 2 1/4 20~120mph 85g BK-42 2 1/4 20~140mph 85g BK-140 2 1/4 30~140kph 85g
