Gentlemen:
A lot of testing has been going on concerning the use of composite and aluminum props on diesels. The mounting data is that these applications, while they can hold up in the short term, are not well-suited to the very high combustion pulses transferred to the crank and the prop. More than a few props have been destroyed whilst being tested. Time will show what I am reporting is accurate. Wishful thinking is a poor substitute for hard data. A delaminated prop will make for an interesting ride.