theres a rib beside Aviator ashore at the moment with Triple Volvo inboard. i think they are triple 370Hp D6 engines! wold guess the rib is maybe 35 feet. 40 tops!
will try and find out a bit more but its very military looking! cracking thing!
Cougar had a rib for last years cowes torquay which had twin ilmor V10. think they were 725 hp per side!!