A new online posting has period text called “A Manual of Marine Engineering” by A. E. Seaton, item link. Page 740 & 741 gives data and trials results for a number of vessels. For the Olympic the info shown is 46,359grt, 49,336 displacement and 78.3 5rpm, 42.5 referred MEP, 54,836 IHP and 22.50 knots on trials.
Bill
Bill