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).
Proposed improvements and alterations for the EAC.7 model, including details on the radiator, engine suspension, and body.
| Identifier | WestWitteringFiles\R\January1928-March1928\ 5 | |
| Date | 9th January 1928 | |
| HS.{Lord Ernest Hives - Chair}) FROM R.{Sir Henry Royce} E.{Mr Elliott - Chief Engineer} ) (At Le CanadelHenry Royce's French residence.) DA.{Bernard Day - Chassis Design}) ORIGINAL R2/M9.1.28. C.c. to BJ. LHS.{Lord Herbert Scott} RG.{Mr Rowledge} PN.{Mr Northey} WOR.{Arthur Wormald - General Works Manager} BY.{R.W. Bailey - Chief Engineer} G.{Mr Griffiths - Chief Accountant / Mr Gnapp} BG. OWB. E.A.C.10. Handwritten notes: X7830 (crossed out) X7770 X7250 (crossed out) X7530 (crossed out) X7070 X7410 I am so pleased with EAC.7. that in making the above we ought to avoid additional alterations that will delay its getting on the road: for instance:- The radiator on EAC.7. is extraordinarily nice in appearance and efficiency of materials and weight. It has: (1) Smaller tubes slightly shorter, (2) all the economical features to make it thinner than the original one with integral shutters. (3) For the present we ought not to attempt to bring the radiator below the starting handle because of the delay, and I doubt if it will be desirable to have a bigger radiator. For appearance one thinks the height is about right. I am proposing when I return that BJ. and our other directors have EAC.7., so that they can appreciate the improvements we are working to introduce, and also the value of those which are not to become standard for reasons I hardly understand, and refer to:- (a) Grouped instruments. (b) Wing stays and lamp supports. Now that the rear of the car has been so much cleared up it will be a great pity if DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} does not go on with this work. The engine suspension is so far such a very definite success that our design of steel plates and rubber should be patented. It has for its object vertical flexibility without losing the stiffness of the frame from lateral and torsional forces. Though the engine is 5 to 1 compression it is as smooth as 4 to 1., and personally, in no part of the car can I feel any engine vibrations, and I think makes our 6 cyl. better than the 8 cyl. We must not forget however that this very nice Hooper body is built on a subframe, and it must be understood that if this subframe and body mounting contribute to the absence of (1) | ||