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Stress test results for a Spectre Frame with measurements at various points under increasing loads.


Identifier  ExFiles\Box 94\4\  scan0060
Date  19th July 1935
  
4327
To Hs {Lord Ernest Hives - Chair} /Gry {Shadwell Grylls} :
Hs {Lord Ernest Hives - Chair} /KS.3/KW.19.7.35.

Latest Spectre(Codename for Phantom III) Frame, without Dash, and also boxing cut away in front of Cross.

1st Point - Front Cross Pan.
2nd " Front of Cross Bracket.
3rd " Front Body Bracket.
4th " 3rd Body Bracket.
5th " 4th Body Bracket.
6th " 5th Body Bracket.
7th " Rear Cross Member.

Front centre at 33.5" and rear centre at 46".

| Points | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|-----------|--------------|--------------|--------------|--------------|--------------|--------------|--------------|
| 400 lbs. | 2º-10'R | 1º-20'R | 1º-10'R | 1º- 0'R | 1º- 0'R | 0º-30'R | 0º-10'R |
| 600 lbs. | 0 - 10 / 2 - 40 | 0 - 20 / 1 - 50 | 0 - 10 / 1 - 30 | 0 / 1 - 5 | 0 - 10 / 1 - 10 | 0 / 0 - 40 | 0 / 0 - 20 |
| 800 lbs. | 0 - 50 / 3 - 10 | 0 - 30 / 2 - 10 | 0 - 20 / 1 - 50 | 0 - 10 / 1 - 30 | 0 / 1 - 20 | 0 / 0 - 50 | 0 / 0 - 30 |
| 1000 lbs. | 1 - 20 / 3 - 50 | 0 - 50 / 2 - 30 | 0 - 40 / 2 - 10 | 0 - 20 / 1 - 40 | 0 - 10 / 1 - 30 | 0 / 0 - 50 | 0 / 0 - 30 |
| 1200 lbs. | 1 - 30 / 4 - 10 | 1 - 10 / 3 - 0 | 0 - 50 / 2 - 30 | 0 - 20 / 1 - 50 | 0 / 1 - 40 | 0 / 1 - 0 | 0 / 0 - 40 |
| 1400 lbs. | 2 - 10 / 4 - 50 | 1 - 30 / 3 - 20 | 1 - 10 / 2 - 50 | 0 - 40 / 2 - 10 | 0 - 20 / 1 - 50 | 0 / 1 - 0 | 0 / 0 - 40 |
| 1600 lbs. | 2 - 20 / 5 - 20 | 2 - 0 / 3 - 50 | 1 - 30 / 3 - 10 | 0 - 50 / 2 - 20 | 0 - 30 / 2 - 0 | 0 / 1 - 0 | 0 / 0 - 40 |
| 1800 lbs. | 3 - 20 / 6 - 0 | 2 - 20 / 4 - 20 | 2 - 0 / 3 - 40 | 1 - 10 / 2 - 40 | 0 - 40 / 2 - 10 | 0 - 10 / 1 - 10 | 0 / 0 - 40 |

30" set
P.T.O.
  
  
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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