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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).
Summary of tests conducted on a lightened front axle and its related components.

Identifier  ExFiles\Box 12\1\  01-page025
Date  20th September 1926
  
Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}4/LG20.9.26.

TESTS ON LIGHTENED FRONT AXLE. (G.74294)

SUMMARY.

I. COMPARISON - STANDARD V.{VIENNA} LIGHTENED AXLE.
a.{Mr Adams} Lightness.
b. Selectiveness.
c. Road shocks.
d.{John DeLooze - Company Secretary} High speed wobbles.
e.{Mr Elliott - Chief Engineer} Self-centering.
f.{Mr Friese} Low speed wobbles.

II. FRICTION IN THE STEERING.
a.{Mr Adams} Friction generated by the car weight.
b. " " " the spring load.

III. TYRES.
a.{Mr Adams} 6.75" traction tread Dunlop.
b. 6.20" Michelins.
c. 6" Dunlop traction tread v.{VIENNA} triple stud.
d.{John DeLooze - Company Secretary} 33 X 5" standard high pressure tyres.

IV. REAR TYRE PRESSURES AND CAR CONTROL.

V.{VIENNA} SHOCK DAMPER SETTING.
a.{Mr Adams} Front.
b. Rear.

VI. SIDE STEERING TUBE ARRANGEMENT.
a.{Mr Adams} Standard with various spring ratings.
b. Experimental.

VII. ROAD SPRINGS.
a.{Mr Adams} Woodhead reversed leaf.
b. Lemoine 1250 and 1300 lbs. springs.

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