Specifications for the Bensport propeller shaft.
| Identifier | ExFiles\Box 148\4\ scan0026 | |
| Date | 27th May 1933 | |
| X 484 To E. {Mr Elliott - Chief Engineer} from Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} 1/KT.27.5.33. BENSPORT(Codename for 3 1/2-litre Bentley) PROPELLER SHAFT. Herewith particulars we sent to the Mechanics Universal Joint Co. - Engine torque 178 lbs.ft. 1st Gear ratio 2.75 Axle ratio 4.1 Weight over rear wheels (max.) 20 cwt. R.P.M. required 4500. Face to face length 55.650 to 57.300 Maximum angularity. ± 12º Hotchkiss drive. Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} | ||
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).