Rolls-Royce Archives
         « Prev  Box Series  Next »        

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 dynamometer performance, weight distribution, and consumption data for S.S. and Phantom models.

Identifier  ExFiles\Box 18\1\  Scan027
Date  9th July 1929
  
To EP{G. Eric Platford - Chief Quality Engineer} from Hs{Lord Ernest Hives - Chair}/Gy.

XY840. Hs{Lord Ernest Hives - Chair}/Gyl/MJ.9.7.29

RE. S.S.

XY441
XY840.

The information you require as taken from our files is as follows :-

(1) Dynamometer performance. Cut-Out Closed.

Std.Phantom. AV.S.S.
R.P.M. B.H.P.
1000 48 51.5
1250 60 63
1500 69.5 74
1750 77 83
2000 82.3 89.3

Cut Out open 2000 R.P.M.
AV. Phantom 90.7 B.H.P.
AV. S.S. 98 B.H.P.

3rd. Gear.
AV.Phantom 85.5 BHP at 2500 RPM.
AV. S.S. 96.0 BHP at 2500 RPM.

(2) Unit Bed performance.
We attach a power curve for 1st 6 units built in Experimental.

(3) Consumption.
We attach a fuel consumption curve.

(4) Average Weights.

Wt. Over Front Axle Weight over Rear Axle. Total Wt.
Body Car 20.25 cwt. 27.5 cwt. 5300lbs.
Total weight includes 2 spare wheels, no passengers, petrol and oil.

Chassis. Front Rear Total
16cwt. 2qrs. 17cwt 0qrs 14lbs. 3814 lbs.
3700(another)
Total weight includes no tools, petrol, oil, water, battery, instruments and two spare wheels.

(5) Subframe. Weight 109 lbs.

Hs{Lord Ernest Hives - Chair}/Gy.
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙