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 recommendations for the 'Paulin Bentley' concerning its name, axle ratio, hubs, brake drums, and exhaust system.
| Identifier | ExFiles\Box 161\1\ scan0139 | |
| Date | 22th July 1938 | |
| Spare SECRET. HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC{W. S. Cassel} 2/PA{Mr Paterson} 25/5/38 RHC{R. H. Coverley - Production Engineer}/DM{D. Munro} 7/SA 27/5/38 Rml/R.22.7.38. Sg.{Arthur F. Sidgreaves - MD} From Hn.{F. C. Honeyman - Retail orders} c. Ha. Hy.{Tom Haldenby - Plant Engineer} Ba. MX.{John H Maddocks - Chief Proving Officer} Ps/Hv. De/Jnr.{Charles L. Jenner} Sr. Re: Paulin Streamline Bentley. We recommend that this car is known in the future as the 'Paulin Bentley' which will convey that it is a streamline car of the particular type developed by Monsieur Paulin. Monsieur Paulin is an aero-dynamic expert, and is also a man of artistic temperament interested in coachwork generally. He has been responsible for the conception of this car, its tests in France in the wind tunnel and for the designs necessary to accommodate the wings, lower radiator and under-shield, etc. We think that on the whole he has accomplished a very difficult job in a satisfactory manner. With reference to your other queries if this car were repeated, we should make the following recommendations:- (1) Higher back axle ratio. The present axle ratio gives 115 m.p.h. @ 4500 revs. If we use the 10 x 41 axle, which is fitted to many customers' cars, together with the overdrive box, we should get 111 m.p.h. at 4500 revs. This would be almost exactly right to get the best out of the car on the road. Handwritten note next to (1): Special Axle Case. Mod: machining (2) Special Hubs and Front Brake Drums. The special hubs fitted to this car come out of the existing forgings. The light alloy drums have proved their reliability on a number of customers' cars. Both these items, are likely to upset production. We should, therefore, recommend the present cast iron drums with increased ribs and standard hubs. Handwritten note next to (2): Add to Cost (3) Cutout. Unless the customer specifically asks for a cutout we should recommend that this is not fitted. We have developed an exhaust system on R.111 which should be very suitable for a high-performance car and we should recommend this in preference to a cutout. It costs less and weighs less than the standard system. If it is inconvenient to introduce this for a few cars, then the standard system would be fitted. This might result in a loss of 1+ m.p.h. Presumably a cut-out can always be fitted if a customer will pay for it. Handwritten note next to (3): No. CS To Look? Handwritten note bottom left: £7-10-0 each so | ||