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Gearbox design and production strategy for the Goshawk model, focusing on side levers and 4-wheel brakes.


Identifier  ExFiles\Box 5\3\  03-page082
Date  6th October 1923
  
VS {J. Vickers} 940

To CJ. from H. {Arthur M. Hanbury - Head Complaints}
c. to BJ. RG. {Mr Rowledge}
c. to Wor. {Arthur Wormald - General Works Manager} BY. {R.W. Bailey - Chief Engineer}
c. to RS. {Sir Henry Royce's Secretary}

R5/M1 6.10.23.

RE. GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)). X.1669
GEARBOX FOR SIDE LEVERS AND 4-WHEEL BRAKES. X.4247
VS {J. Vickers} 940

Referring to your memo, regarding four wheel brakes for Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)), we have I understand stopped the gearbox we have designed for side levers without four wheel brakes.

We shall be pushing forward the <strike>the</strike> designs for a box which we had in hand exactly like RAC.1 somewhat simplified for side levers and multi-plate pattern Servo for four wheel brakes.

I believe it will be our best policy, and certainly easiest understood, if we announce that after No. so-and-so 20 HP., these chassis will be fitted with side levers, and can be supplied with four wheel brakes if desired, at £50 extra.

That is, we do not attempt to fit four wheel brakes with the present box, or with any box having central levers.

To enable us to make this change at a suitable date we must stop production of front axles, <strike>suitable</strike> and gearboxes, and change speed levers for this chassis.

The date at which we can supply this gearbox (I suggest March) will be the date at which we can supply side lever cars with, or adaptable for four wheel brakes.

R. {Sir Henry Royce}
  
  
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).


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