JHOLLAND1
Titanium
- Joined
- Oct 8, 2005
- Location
- western washington state
controllable pitch propeller first described 1683
by 1860 varieties were in use on steam powered ships
video records mounting of propeller which may be controllable pitch
or simply modular blade variety---1926
https://youtu.be/81FSxz7uz48
by 1860 varieties were in use on steam powered ships
video records mounting of propeller which may be controllable pitch
or simply modular blade variety---1926
https://youtu.be/81FSxz7uz48