The minimum requirement is a PTFE type thrust washer between the end of the tube and the prop.
A better method is the use of a ballraced propshaft where the thrust is taken by means of a collar pushing on the back of the bearing.
| It is not a good idea to transmit the thrust
from the propellor through to the engine or gearbox, it
will cause mis-alignment with the coupling and generate
vibration with resulting loss of power. The minimum requirement is a PTFE type thrust washer between the end of the tube and the prop. A better method is the use of a ballraced propshaft where the thrust is taken by means of a collar pushing on the back of the bearing. |
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