Rolls-Royce Archives
         « Prev  Box Series  Next »        

Brake test results and component specifications for chassis 19-EX.


Identifier  ExFiles\Box 12\5\  05-page308
Date  19th October 1931
  
RM {William Robotham - Chief Engineer}
x7360.
19.10.31.
BRAKE TESTS. 19-EX.
Cold measurements -
F.P. from dash hand pressure 5 3/4"
R. {Sir Henry Royce} arms O.S. 3/4" N.S. 3/4"
Front toggles O.S. 5/8" N.S. 5/8"
12 brakes 70 - 10
1st brake 250 ft.
12th brake 260 ft.
Measurements after checking last distance
F.P. 6"
Front toggles O.S. 5/8" N.S. 5/8"
10 miles braking every 1/4 mile 40 - 10.
12 brakes 70 - 10.
10 miles braking every 1/4 mile 40 - 10.
--------
O.S. front dust cover rubs.
Tendency for brakes to grab at 50 m.p.h.
No noise from either front or back.
75 miles.
Cold measurements -
F.P. from dash 5 1/2"
R. {Sir Henry Royce} arm O.S. 5/8" N.S. 7/8"
Front toggles O.S. 5/8" N.S. 3/4"
--------
Front Brakes.
O.S. Lake & Elliott Cast Iron Brake Drum Linings G.79542.
N.S. RR. Cast Iron Brake Drum Linings G.79542.
Auxiliary Brake Shoes G.79445.
Ferodo Bonded Asbestos 3/8" thick.
Rear Brakes.
G.79502 Rear Brake Drums produced in Lake & Elliott's
Nickel Chrome Cast Iron, fitted with Anti-Squeak Type
Brakes to Sch.1433.
Ferodo Bonded Asbestos 3/8" thick.
HS {Lord Ernest Hives - Chair} /GWH. {George W. Hancock - Head Chateauroux}
  
  
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 🗙