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).
Comparative analysis of petrol tank weights for Spectre, Bentley, and Cadillac models.
| Identifier | ExFiles\Box 95\4\ scan0166 | |
| Date | 25th March 1935 | |
| To E.{Mr Elliott - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c.c. to SG.{Arthur F. Sidgreaves - MD} c.c. to WOF. c.c. to By.{R.W. Bailey - Chief Engineer} c.c. to BN.{W.O. Bentley / Mr Barrington} 4351 HS{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}15/KN.{D. G. McKechnie - Sales} 25.3.35. Comparative Petrol Tank Weights showing lbs. per gallon. Herewith analysis of various car tank weights, which confirm that we are unnecessarily heavy. We are handing the Cadillac tank over to you for inspection. The new Bentley tank mentioned is one made up experimentally for this 10,000 miles test. Car | Weight of Petrol Tank | Capacity | lbs. Weight per Gallon. ----------------|-----------------------|-----------|------------------------- SpectreCodename for Phantom III | 57 lbs. | 28 galls. | 2.3 lbs. Bentley Std. | 46 lbs. | 18 galls. | 2.55 lbs. Bentley New | 37 lbs.6 ozs. | 18 galls. | 2.075 lbs. Cadillac | 35 lbs.14 ozs. | 25 galls. | 1.44 lbs. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||