A-Type propellers are classic shaped propellers adapted to many boats: runabouts, fishing boats ...
B-Type propellers are recommended for submarines.
C-Type propellers are suitable for speedboats
Working boats such as pilot boats, tugs ... require D-type propellers.
DM-type propellers are suitable for warships.
T-Type propellers are designed for boats with Kort nozzles.
For the same type of propeller, the more the number of blades increases, the better is the traction power of the propeller (equivalent propeller diameter and pitch).
The size, the hull shape of the boat, its mass and its motorization influence the choice of the propeller.