With the right products and tools, along with a healthy portion of elbow grease, it's possible to give an older sailboat's gelcoat a new lease on life. The post Polishing the Gel Coat Is a Good Alternative to Painting the Topsides appeared first on Cruising World.
I don t think many decent sized marine steam engines had flywheels, instead they relied on the inertia in the shafting and prop and were flange drive. All the large marine diesels I have worked on have had flange mounted flywheels, no keys just fitted bolts and high torque.
If a flywheel were fitted to a small marine steam engine I would expect it would be secured with a taper gib head key. That s how traction engine flywheels and line shaft pulleys etc were retained, having had to remove some I can vouch for how tight they can hang on! Either that or mounted on a taper on the end of the crank in the same manner shaft couplings are (both with and without keys) the modern type of taper coupling using oil injection to seat and remove are a thing to behold, they can come off with a significant bang and not something you want to be messing with without some restraint in place.