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).
With diagrams proposing modifications to the radiator and bonnet shape for improved appearance.
| Identifier | WestWitteringFiles\Q\January1927-March1927\ 11 | |
| Date | 28th February 1927 guessed | |
| (3) DA.{Bernard Day - Chassis Design} - let me have the views of yourself, with E.{Mr Elliott - Chief Engineer} and EV.{Ivan Evernden - coachwork}, also clear up any mistakes I have made by telephonic discussion with HS.{Lord Ernest Hives - Chair} Would it be costly to test these suggested modifications? First find what would make the best looking and useful shape of radiator and bonnet, and if it would meet Sales objection of appearance, and coachbuilders point of view, then find the percentage of loss of efficiency of radiator. This best shape would be - (1) Slightly lower centre of radiator. (2) Slightly less thickness of radiator. (3) Integral shutters exactly the same as those objected to (not thinner tank.) (4) Perhaps slightly narrower at rear end. (5) Greatest allowable height and depth of radiator. [Text from top diagram] Less. Lower relatively. Plain. Approximately 45". [Text from bottom left diagram] A Y Slightly narrower here. [Text from bottom right diagram] Slightly less. Increased slightly. All these small percentages will add together and make an improved appearance at the expense of slight all-round efficiency - i.e. for the coachwork, and possibly for cooling, unless matrix can be increased in height or depth - (5) - which would quickly make up for (2). R.{Sir Henry Royce} | ||