Rolls-Royce Archives
         « Prev  Box Series  Next »        

Meeting notes detailing the progress and parts required for B.80 engine units, including a conventional Bentley 80 version.


Identifier  ExFiles\Box 161a\3\  scan0140
Date  27th April 1939
  
-5-
HPS {Horace Percy Smith - Experimental Factory Mgr} /WSC. {W. S. Cassel} 10/BA.27.4.39.

B.80.No.5. contd.

(a) Crankcase T.E.Cylinder EB.4670 AG. reported that this was at the operation milling.
(b) Crankshaft EB.4575 HPS. {Horace Percy Smith - Experimental Factory Mgr} stated that he was anticipating this being available in a prox. 4 weeks.
(c) Crankshaft Damper to BCD.1246.
(d) Cylinder Head EB.4098.
(e) Camshaft Ex.33975.
(f) exhaust Valves Ex.33420.
(g) Induction Manifolds BCD.1298 details were received 19.4.39 and are instructed under code BE.3/2, necessitating new castings.
(h) Pistons EB.3916 Aerolite.

It was agreed that a tentative date for the completion of this unit would be the end of May. This unit is now allocated to.4.B.50.Chassis.

B.80.No.6.

This was also a new unit instructed in HPS {Horace Percy Smith - Experimental Factory Mgr} /WSC. {W. S. Cassel} 1/BA.31.3.39 which is similar to B.80.No.5 with the following exceptions.

(a) EB.4512 Camshaft.
(b) EW.2121 Pistons - Aerolite.

This engine is to follow closely on the heels of B.80.No.5.

Bentley 80 Conventional.

We have now well in hand all the new patterns for this unit. Will Rm. {William Robotham - Chief Engineer} please say if he requires us to go ahead with the producing of any necessary jigs and tools that will be required for machining purposes; as it was pointed out that if this unit is required in a hurry, jigs and tools would be biggest hold up.

[Handwritten text in black ink]
Short duration camshaft.
URGE THIS
UNIT FOR
30GVI

[Handwritten text in red ink]
WHAT JIGS ARE REQUIRED
  
  
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).


Copyright Sustain 2026, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙