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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).
Dynamometer test report for a Mercédès chassis.

Identifier  ExFiles\Box 22\5\  Scan056
Date  22th November 1911
  
R.R. 298A (1 H) (P. 125. 10.6.10) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 873.
X407
DYNAMOMETER TEST.
Mercédès
Chassis No.
Have tested Chassis for acceleration, etc., and at full load on all gears as below:
general condition:—
Max. torque lbs. Engine speed
3rd. Gear 10 mins. at 750 revs. H.P.
" " 15 " at 1000 revs. H.P. 91
" " 10 " at 1250 revs. H.P. 107.5
" " 10 " at 1500 revs. H.P. 121
" " 10 " at 1250 revs. H.P. 134.5
1st Gear " 10 " at 1000 revs. H.P.
Condition of ignition plugs after test
Condition of lubrication of cylinders
Compressions
Miles run
Consumption 3rd Gear full power. 1250 revs. — H.P. hour per gallon
REMARKS:— Test clutched & Mr Royce. as engine had been refitted as new. C.J.
Tested and passed by F Cua
Date 22/11/11
  
  


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