rslifkin
Guru
- Joined
- Aug 20, 2019
- Messages
- 7,995
- Location
- Rochester, NY
- Vessel Name
- Hour Glass
- Vessel Make
- Chris Craft 381 Catalina
Again, this only applies to planing boats. In a displacement hull with fixed prop the mid-rpm torque capabilities of a diesel don't matter, because the full available power in that range is never needed on a continuous basis.
That's entirely the point. Propped correctly, you never use that power range outside of very short bursts if you throttle up quickly. But when overpropped, you're applying more load at any given RPM the engine can reach. So you can end up operating continuously in that range where the designer didn't expect you to.