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).
Detailed breakdown of weight savings for components of the Continental Phantom III model.
| Identifier | ExFiles\Box 92\6\ scan0152 | |
| Date | 14th May 1937 | |
| 300B CONTINENTAL P.III. WEIGHT SAVING. 14.5.37. AFM.{Anthony F. Martindale} Brakes ......................................... 64 lbs Gry.{Shadwell Grylls} Frames. lbs. ozs. Side Members ....... 27 - Pan ................ 5 5 Cross .............. 6 11 Front Cross Member . 6 7 N.S. Frame Stiffener 6 - ........ 51 7 Jacks ............................................ 5 - FD.{Frank Dodd - Bodies} Lightened Body Brackets ) Owing to these not " Step Irons ) being ready in time " Wing Stays ) were. not. fitted... 14 10 Wst. Dynamo ............. 6 4 Battery ........... 14 - ........ 20 4 Wym.{G. Harold Whyman - Experimental Manager} Exhaust System ................................ 30 - Std. Radiator (Full) ..... 32 4 Bonnet .............. 10 12 ........ 43 - FJH.{Fred J. Hardy - Chief Dev. Engineer} Steering Section saving) as now built ) 15 14 Estimated further saving ) if steering levers made ) to drawing. ) 3 2 ........ 19 - Les.{Ivan A. Leslie} Pair of Alum. Spring Housing ........... 20 5 Pair of Rear Springs 48 - ........ 68 5 JBD.{John B. Dixon - Fuel Systems} Petrol Tank ........ 7 8 Increases due to Petrol P. 1 - ........ 6 8 Swdl.{Len H. Swindell} Crankshaft ........ 15 8 A/C Hot Spot ...... 8 - 25/30 Dynamo ...... 6 - Bearings in Hall's Metal 7 - Reduced section cyl.liners 6 - Lower Half in Magnesium 10 4 Deletion of oil Temp. Regulator ......... 3 - Deletion of Filter 4 - Thin section wheelcase & Rocker cover. 3 - ........ 62 12 Does not include deletion of top water rails or mods to flywheel, clutch & clutchcase. Does not include weight saving by using the 4 port heads & corresponding deletion of long inlet manifolds of 6 port head. Solid rocker gear is not fitted which would save further 10 lbs. | ||