From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Report discussing the installation of an 'R' engine into a boat designed by Mr. Scott-Paine and detailing the characteristics of his current vessel.
| Identifier | ExFiles\Box 174\1\ img010 | |
| Date | 21th November 1933 | |
| -3- Lr.{Mr Ellor}1/AD.21.11.33 contd. (b) Increased reliability and accessibility of machinery and power plant and the engine systems would be much simpler. (c) Less costly and if it is decided to use an "R" engine, arrangements can be made to fit the existing engine as soon as Mr.Scott-Paine is ready with his boat. (d) The experimental work is practically eliminated. The point raised by Mr.Scott-Paine in favour of a multi-engined heavier boat was with regard to the comfort and handling properties in rough water. I suggested, however, that since he had set up a record for any power boat on the sea which a multi-engined boat had not yet equalled, there appeared to be every reason why he should not make a change. He has, I understand, some ideas on decreasing the beam and increasing the length of the boat with a view to improving the riding on rough water, in fact he is starting right away on making this modification to the existing boat and trying its effect before commencing any new boat. We compared propeller characteristics and I am satisfied that he appeared to be getting as good an efficiency out of his as is possible. With an "R" engine having increased torque, it was agreed to run the propeller shaft at a higher speed and maintain about the same torque on the boat as he has at present. Between us we have sufficient information to permit of a suitable propeller being designed. Items of interest in connection with his present boat are as follows :- It is the first all-metal light alloy high speed boat which has been produced and the construction permits of increased rigidity for much lighter weight, having the additional advantage that factors of safety are more calculable. The engine and machinery are well secured in the boat and the various systems, pipes, controls, etc. have been carefully arranged and firmly attached to prevent vibration and to withstand rough water treatment. | ||