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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 discussing the proposed body for a J3 Chassis with a P2 engine, detailing various technical queries and requirements.

Identifier  ExFiles\Box 123\3\  scan0020
Date  4th August 1933
  
SECRET
To E.{Mr Elliott - Chief Engineer}
Copy to Hs.{Lord Ernest Hives - Chair}
Nor.
G

407 OP.

Ev.{Ivan Evernden - coachwork}1/IH.4.8.33.

re P2.J3.

We send herewith a print of Ev.{Ivan Evernden - coachwork}S.101, the proposed body for the J3 Chassis fitted with a P2 engine, the chassis being taken from your LeC.3580. We are sending you this advance print to enable you to see what the coachwork is like and what limitations it imposes upon the chassis. It will be appreciated that we cannot go much farther than this until we receive a more detailed layout of the chassis, giving working dimensions. During the course of setting up this body we have come across the following items, which we think you will be glad to hear of:

(1) We would like to know the size of wheel and tyre it is proposed to use, and, also, the maximum bump of the front and rear springs.

(2) We take it that you will be able to arrange for the front floor to be 2 inches above the chassis frame.

(3) The position of the steering column and wheel is not given. We think that unless the pedals are more near to the back of the dash than on our present Phantom II, the leg room will be inadequate. We shall be happy if we get 29 inches between the bottom of the steering wheel and the plate of the accelerator pedal in the middle of its stroke.

(4) We shall need a drawing showing the shape of the third cross member and the height of the battery above the level of the frame together with its cross member.

(5) We have indicated the wells we would like to have subject to their being suitable for the brake-gear. We have roughly set out a brake-gear just to see whether we were asking for something impossible.

We are now setting out the shape of the bonnet radiator and dashboard, which we hope to send you in the course of a day or so. We find that we wish the radiator to have its top tank
  
  


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