1980s: Propeller on top of sail spins. Machines. Gauges are labeled "WIND SPEED" and "WIND DIRECTION."

Name: 1980s Propeller On Top Sail Spins
Uploaded: 2018-03-18T00:00:00.000Z
Duration: 23 s
Channel: AV Geeks
Description: 1980s: Propeller on top of sail spins. Machines. Gauges are labeled "WIND SPEED" and "WIND DIRECTION." Stock Footage Video (100% Royalty-free) 1008725165 | Shutterstock