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).
Graph showing representative output curves for a Standard 'R' 20 HP Dynamo under various conditions.
Identifier | ExFiles\Box 51\1\ Scan365 | |
Date | 18th August 1924 | |
REPRESENTATIVE OUTPUT CURVES OF STANDARD 'R' 20 H.P. DYNAMO UNDER VARIOUS CONDITIONS AMPERE OUTPUT OPERATING VOLTAGES DYNAMO R.P.M. CHASSIS M.P.H. 11/50 AXLE 31" x 4" DIA TYRES Curve Labels: 1) Output at 70% set by General Specification 2) Output at 66% set by General Specification 3) General specification 4) Output at 83% set to production test 5) Nett minus ignition current Field current at 70% set by General Specification | ||