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).
Breakdown of approximate weights for the 40/50 Phantom Chassis, its components, spares, and accessories.
| Identifier | ExFiles\Box 71\2\ scan0208 | |
| Date | 12th January 1928 | |
| 78840 N.R.C.Rm{William Robotham - Chief Engineer} 40/50 ROLLS-ROYCE PHANTOM CHASSIS APPROXIMATE WEIGHTS. cwts.qrs.lbs. Total Lbs. Chassis, long type, average weight 35. 1. 22. 3970 The above figures include:- Oil.................................. 1. 2. 30. Water................................ 2. 12. 68. Petrol, 20 Galls.................. 1. 1. 10. 150. Wheels, 4 wellbase wire at 36 lbs each....................... 1. 1. 4. 144. Tyres, 4 well base at 40lbs ea.... 1. 1. 20. 160. Battery with acid................. 3. 16. 100. Weights of chassis also include:- Switchbox and gauges The following (a) (b) (c) are not included in above weights (a) R.R.Luggage carrier. 20 lbs R.R.Spare wheel side carrier 13 lbs. (b) Spares:- 2 spare well-base wire wheels(72) 2 spare wellbase tyres..........(80) R.R.Tools and spares...........(34) Jack..........................(11) Tyres Pump.....................(6½) Wheel spanner..................(4½) Mallet........................(1½) Hydrometer.....................(½) Total: 1 cwt. 3 qrs. 14 lbs = 210 lbs. (c) Accessories:- Wind-horn......................(5) Number plates, 2 ..............(4) Brackets for headlamps, two....(6) Head lamps.....................(13½) Wing Lamps.....................(2) Rear Lamp......................(1) Instrument Board lamps, two....(1) Inspection lamp and lead.......(1) Lamp blubs in case.............(½) R.R.Mascot.....................(2) Badge..........................(1) Speedometer....................(5) Clock..........................(1) Screen wiper, one..............(2) Total: 1 qr. 17 lbs. = 45 lbs. Notes. 1. Short type chassis are 40 lbs lighter than long type. 2. Chassis with 4 wellbase Artillery wheels weigh 60lbs more & spares weigh 30 lbs more than above. 3. Chassis with 4 straight side artillery wheels weigh 3 qrs. 20 lbs (104 lbs) more - & spares weigh 52 lbs more. (2 wheels 120 lbs) than chassis & spares with well-base wire wheels. 4. Chassis with 4 straight side wire wheels weigh 1 qr. 8 lbs (36 lbs) more - and spares weigh 18 lbs more (2 wheels 86 lbs) (and 2 tyres 84 lbs) than chassis and spares with wellbase wire wheels. Chassis 3970 Spares 210 TOTAL 4180 | ||