Rolls-Royce Archives
         « Prev  Box Series  Next »        

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).
Weight of various engine components and discussing light alloy construction.

Identifier  ExFiles\Box 160\5\  scan0345
Date  3rd October 1941 guessed
  
(2)

PHANTOM WATER PUMP.
5 lbs. ..... (11 lbs. 7 3/4 ozs.)

MANIFOLDS.
30 lbs. ..... (65 lbs. 5 3/4 ozs.)

(I am not quite clear whether the parts pictured )
(in Negative 5529c. Section 1 G.H. are in addition )
(to or substitution for those shown in Negative )
(5509c. of the same group and, if so, what effect )
(have they on total weight and light alloy weight? )
(At the moment, I have neglected 5529 as they )
(do not seem to appear in the summary of weights )

CYLINDER HEADS & ROCKER COVERS.
60 lbs. ..... (83 lbs. 11 1/2 ozs).

CYLINDERS & TOP HALF CRANKS.
140 lbs. [struck through] ..... (189 lbs. 8 ozs.)

CARBURETTER, AIR SILENCER & CONTROLS.
5 lbs. ..... (20 lbs.)

On this assumption, this gives a total
finished machine weight of aluminium in the engine
of 282 lbs. [corrected from 288 lbs. which is struck through]

I would like to refer to the brake drum if the
light alloy construction is now standard, so perhaps
you would let me know about this. I will certainly
give you plenty of warning before descending on you
again, so that you can have time to revert to type.

Sincerely yours,
Laurence Pomeroy.
TECHNICAL EDITOR.
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙