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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 to F.L. Rapson agreeing to test a set of his tyres on an experimental 20 HP car.

Identifier  ExFiles\Box 39\1\  Scan046
Date  8th October 1923
  
X1238

Hs{Lord Ernest Hives - Chair}10/LG.

8th. Oct. 1923.

F.L. Rapson, Esq.,
Burlington Rd.,
New Malden,
Surrey.

Dear Sir,

Answering your letter of the 2nd. inst. We shall be very pleased to test out on one of our Experimental cars, a set of your tyres.

We assume that you are producing straight-sided tyres. We have some time ago, standardised straight-sided tyres. We should prefer a set of tyres to suit our 20 HP. car. The size of the tyre used on this car is 32 X 4½. The weight of the car complete with body - no passengers will be :-

Front - 13 cwts.
Rear - 16 cwts.

Usually we run our tests with 40 lbs. pressure in the front tyres, and 45 lbs. pressure in the rear tyres. We do not wish to run with anything much higher than this.

If you decide to send us a set of tyres, we will arrange to furnish you with a fortnightly report with regard to mileage and condition.

Yours faithfully,
  
  


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