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).
Calculating and comparing the chassis and body weights of a Humber Snipe Sports Saloon.
| Identifier | ExFiles\Box 126\2\ scan0066 | |
| Date | 13th August 1938 | |
| To Rm.{William Robotham - Chief Engineer}.. from Ev.{Ivan Evernden - coachwork} 1069. Da{Bernard Day - Chassis Design}/Ev.{Ivan Evernden - coachwork}11/N.13.8.38. Re: Weight of 21.HP. Humber Snipe Sports Saloon. -------------- From your information from the Humber Co. we ascertain that: The Chassis complete with radiator shell, petrol, oil and water, spare wheel, and wings and steps weighs 21 cwts, 3 qrs. 14 lbs. The car complete with petrol, oil and water, weighs 31 cwts, 0 qrs. 14 lbs. The difference between these two weights is 9 cwts, 1qr. 0 lbs. which is the weight they quote for the body unmounted. We therefore presume that lamps etc. are included in the chassis weight. To get a chassis weight for the Snipe comparable with that we give for B.III. we should subtract the following: Wings and running boards 1 cwt 1qr. 13 lbs. - B.2 all steel. Headlamps. 22 lbs - P.100 Sidelamps. 3 lbs. Tools. 15 lbs - estimated. Rear bumper. 20 lbs. ------------- 1 cwt.3qr. 17 lbs. This gives the Snipe chassis 20cwts.3 qrs. 14 lbs. The corresponding figure for 7.B.5. is 23cwts,1qr.18 lbs. To get a comparable figure for the Snipe body we should add: Wings and steps 1 cwt.1qr.13 lbs. giving a body weight of 10cwts.2qrs.13 lbs. The corresponding weight of the body of 7.B.5. is 8cwts.3qrs.19 lbs. Cont'd.{John DeLooze - Company Secretary} | ||