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Gearbox and axle redesigns for the Goshawk and Seagull models, noting progress on experimental production.


Identifier  ExFiles\Box 183\M22\  img239
Date  29th December 1922 guessed
  
(2)

bearings along the shafts. Both these units, we
believe, if once made silent, will remain so, in fact
our experience is, especially with the gearboxes, that
they become more silent with running.
There is another advantage which the Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))
type has as regards silence, and that is, the axle is
less rigidly attached to the frame, so that the vibra-
tions and noises due to the axle gearing ought not to
be carried to the frame and body as easily as in the
case of the 40/50.
In the Seagull(Experimental EAC.1 aka Export chassis, Phantom I engine) it is intended to follow the
practice of the Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) in all respects. The axle
is just going to Derby this very week, the gearbox has
been quite re-designed for "Servo", for four wheel
brakes, and side change levers. It too is nearly
ready - perhaps in 10 days hence it will be all complete.
Some important and vital parts of the engine
for Seagull(Experimental EAC.1 aka Export chassis, Phantom I engine) also leave WW. this week, so that Derby
will be very busy in experimental produce.

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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