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Weight of the Phantom chassis and the potential use of the lighter Vulture gearbox.


Identifier  ExFiles\Box 18\1\  Scan067
Date  9th July 1934
  
x7840
To Hs. {Lord Ernest Hives - Chair} from Sg. {Arthur F. Sidgreaves - MD} Re Weights - 40/50. Sg {Arthur F. Sidgreaves - MD} 7/E9.7.34
Copy to Wor. {Arthur Wormald - General Works Manager} E.Cx. {Major Len W. Cox - Advertising Manager}
Ev. {Ivan Evernden - coachwork} Dv. Hdv. Ex. F.v.

I am in receipt of Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} 10/KW.5.7.34. I rather agree that, in view of the Spectre(Codename for Phantom III) chassis, it is hardly worth while going to a lot of trouble and expense to reduce the weight of the Phantom, especially as I understand that to achieve any real results would mean design modifications and experimental work.

If, as I understand, the Vulture(Experimental 6 CYL OHV LONG STROKE / Aero Engine) box with synchromesh second weighs only 192 [struck through] 127 lbs. as against the box fitted to 28-EX, 220 lbs., I am wondering why we did not use the Vulture(Experimental 6 CYL OHV LONG STROKE / Aero Engine) box which was in existence. I suppose there is some good reason for this but I should like to know what it was - as the Vulture(Experimental 6 CYL OHV LONG STROKE / Aero Engine) was really a Phantom engine, the reason does not seem obvious to me.

Rm {William Robotham - Chief Engineer}
Sg. {Arthur F. Sidgreaves - MD}
  
  
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).


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