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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).
Letter detailing a vehicle road test from London to Abbeville, reporting on issues with brakes, power, steering, and clutch.

Identifier  ExFiles\Box 73\3\  scan0359
Date  9th February 1924
  
Abbeville (France) X9946 9nd Feb. 1924

Mr Hives
Exp. Dept.
Rolls-Royce Ltd
Derby.

Dear Sir,
I reached London yesterday at about 1 p.m. without incident & subsequently Sandgate, just out-side Folkestone, in the evening.
To-day we have come as far as above place - Mr P.N. seems very disappointed with the brakes & also with the power -
I have checked the former on arrival - The main shoes seem O.K. The Servo-shoes I have taken up 9 notches on each adjusting screw - if this does not improve matters I will take further steps in Paris -
Re-Power I dare not interfere with your own adjustments as made in Derby, unless instructed - I have checked air-valve for freedom, plugs & ignition & found all O.K.
Mr P.N. would not get more than 75 m.p.h on a straight good road - He complains also of steering being stiff -
Clutch did not disengage properly. i.e. the plate did not stop - I have adjusted same, which is a rather tacky job owing to too small an inspection plate & absence of appropriate spanners for the adjusting screws (wants internal hexagonal spanner) & lock-nuts -
Consumption was yesterday 12 & 1/2 miles to the gallon while I drove from Derby to Sandgate. From Boulogne to here 66 miles (via Paris-plage) it has gone to 1 gallon per 11 miles - Mr P.N. says he is not interested in consumption so long as
  
  


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