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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 weight-saving analysis for the Continental Phantom III model.

Identifier  ExFiles\Box 96\4\  scan0136
Date  14th May 1937
  
358 also 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 nails
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
ggear is not fitted which would save further 10 lbs.
  
  


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