Offshore boats are sometimes designed around a get home system.
The noisemaker is located where a chain or belt drive can turn the shaft after the engine is uncoupled ,
this requires a thrust bearing at the end of the shaft.
Some noisemakers can use a conventional shaft and drive , if a proper folding power boat prop is selected .
This requires a robust enough engine that full electrical power can be taken from the front. A DD 2-71 perhaps.
Hydraulics on the noisemaker run into the same hassle , how much power can be taken from the front of the usually small engine.
Big bucks (but worth it ) to have a hyd pump on the main engine and noisemaker , to operate a hyd generator head, bow thruster, windlass , get home and all the rest.
Putting 30-50HP to a prop is easy with a shaft or hyd , but first the unit must be over 50 hp, usually far too large for a cruiser that is not large and with 24/7 electric , with a $100-$250 a day fuel bill.
For the usual TT ,,Sea Tow is the least costly option.