Rolls-Royce Archives
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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).
Secret letter to The British Power Boat Co. about a Merlin engine's potential marine application.

Identifier  ExFiles\Box 175\1\  img008
Date  26th May 1941
  
BOAT 18

26th May, 1941.

Rm.{William Robotham - Chief Engineer}2/RH.{R. Hollingworth}

G.{Mr Griffiths - Chief Accountant / Mr Gnapp} Selman Esq.,
The British Power Boat Co., Ltd.,
Hythe,
SOUTHAMPTON.

SECRET.

Dear Selman,

I have been developing a Merlin engine for use in tanks and this is now going into production. It is being made by Leyland Motors. I know that Mr.Spurrier of Leylands, was rather interested to know whether there might be any application for this engine in a boat.

On 72 octane fuel it gives 600 H.P. and we should expect 750 H.P. on 87 octane. It weighs 1170 lbs. and its length is that of a Merlin with the supercharger and reduction gear removed. If it is of any interest, I can send you an installation drawing. The distance from the centre line of the crankshaft to the lowest part of the crankcase is only 8½".

I have to admit that the prospect of getting any quantities of this engine at the moment, are not bright, but it will be interesting to know whether it had a marine application.

Yours faithfully,
  
  


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