Rolls-Royce Archives
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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).
Performance graph showing Ampere Output and Operating Voltages versus vehicle speed for the 40/50 HP Phantom II chassis.

Identifier  ExFiles\Box 165\6\  img245
Date  14th December 1929 guessed
  
AMPERE OUTPUT
OPERATING VOLTAGES
18.70
18.50
18.30
18.10
17.90
17.70
17.50
17.30
17.05
16.80
16.50
16.30
15.90
15.55
15.20
14.80
14.40
14.00
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
200
400
600
800
1000
1200
1400
0
5
10
15
20
25
40/50 H.P.
1. REPRESENTATIVE
2. REPRESENTATIVE
3. MAXIMUM PE
4. REPRESENTATIVE
PHANTOM II CHASSIS M.P.H.
  
  


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