No data on air propellers was available, but we had always understood that it was not a difficult matter to secure an efficiency of 50% with marine propellers.
No data on air propellers was available, but we had always understood that it was not a difficult matter to secure an efficiency of 50% with marine propellers.
Before leaving for our camp at Kitty Hawk we tested the chain drive for the propellers in our shop at Dayton, and found it satisfactory.
There is relatively little damage to the propellers, ... And this of course would imply and back up the pilots' report of losing power on both engines.
Flying in to pick up the sand bags we had to pick up, there was one gentleman sitting on the river bank pretty much, by himself holding the American flag, and with the wind generated by the propellers the flag was waving perfectly,
© 2020 Inspirational Stories
© 2020 Inspirational Stories