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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).
Weight comparison sheet for the 25/30 and Wraith chassis models.

Identifier  ExFiles\Box 107\4\  scan0151
Date  30th August 1938
  
To By.{R.W. Bailey - Chief Engineer}
c. to Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies}
558 also 658.
Rm{William Robotham - Chief Engineer}/Cr.{Mr Cra???ster / Mr Chichester}9/JH.30.8.38.

| | 25/30 | Wraith.
|---|---|---
| Chassis complete with oil, water, and horns, (production weights) | 2720 | 2830.
| Petrol | 135 | 135
| Battery | 80 | 73
| Spare wheel and tyre. | 65 | 65
| Spares and tools (including lamps) | 59 | 59
| | 3059 lbs. | 3162 lbs.
| Front Bumpers (not standard on 25/30). | 25 |
| | 3084 lbs. | 3162 lbs.

Increase in weight since the Wraith chassis was first weighed are as follows.

Brake drums. | 42
Heavier top bonnet panels. | 6 1/2
Battery | 6
Clutch mechanism | 2
Rear engine mounting | 14
Front engine mounting | 8
Cont'd.{John DeLooze - Company Secretary}
  
  


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