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Test report logging a series of spring and frame failures on a 40/50 front bumper chassis.


Identifier  Morton\M1.6\  img033
Date  18th January 1925
  
40/50 CHASSIS.
REPORT ON BUMPER CHASSIS - FRONT.

Special fittings fitted.
Radiator - Monel metal plates and copper tubes.
Rocker Shaft on Steering F.8956 - D. {John DeLooze - Company Secretary} type. (X.3920)
Support bracket. E.20246 (X.4373)
New Frame with fittings off previous frame.

Total hrs. run. | Remarks.
-------------------------------------------------
5 hrs. 30 mins. | Bottom leaf O.S. spring broken.
6 " 40 " | 2nd. leaf from bottom O.S. broken.
7 " 0 " | 3rd. and 4th. leaves from bottom O.S. broken.
11 " 50 " | Old spring fitted to O.S. returned with 4.EX.
15 " 35 " | 5, 6, and 8 leaves N.S. spring broken.
22 " 45 " | Top leaf N.S. spring broken - 4th. leaf broken.
33 " 15 " | 1, 3, 4, 5, 6, 7 N.S. leaves broken.
36 " 35 " | Top leaf N.S. spring broken centre.
59 " 15 " | 2nd. and 3rd. leaves N.S. spring broken.
63 " 35 " | 7, 8 and 9 leaves N.S. spring broken.
70 " 10 " | Centre bolt broken N.S. spring.
81 " 21 " | Centre bolt broken N.S. spring.
89 " 56 " | Top leaf O.S. spring broken (U.S.A.)
91 " 11 " | 6, 7 and 8 leaves broken - 9th. cracked. O.S. spring.
Frame cracked at N.S. front cross member bolt holes.
94 " 36 " | 2, 12 and 13 leaves broken O.S. spring.

Test finished.
Radiator brackets O.K.
Radiator fouls brackets where cleared away at bottom for brackets.

H B 128 (2101) (Photo 18-1-25) MBL?0902
  
  
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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