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).
Output-Speed curves for an Aero Type U₂ wind-driven dynamo, comparing vibrator regulator controlled and uncontrolled performance.
| Identifier | ExFiles\Box 31\1\ Scan088 | |
| Date | 1st October 1925 | |
| TITLE: OUTPUT - SPEED CURVES OF AERO TYPE U₂ WIND DRIVEN DYNAMO Vibrator Regulator controlled and uncontrolled. LEFT Y-AXIS LABEL: OUTPUT CURRENT (AMPERES) RIGHT Y-AXIS LABEL: FIELD CURRENT (AMPERES) X-AXIS LABEL: DYNAMO SPEED (R.P.M.) DATA TABLE: Header: OPERATING VOLTAGES Sub-headers: SPEED (HOT, COLD), TERMINAL (HOT, COLD) Columns (from left to right are d, c, B, A): 14.5 | 15.0 | 14.0 | 14.0 14.4 | 15.0 | 14.0 | 14.0 14.3 | 15.0 | 14.1 | 14.0 14.2 | 14.8 | 14.3 | 13.9 14.1 | 14.5 | 14.1 | 13.2 14.0 | 15.0 | 13.8 | 12.9 14.1 | 15.4 | 13.6 | 12.6 CURVE LABELS: FIELD CURRENT FOR REG. NO 174. CURVE 'C' ONLY PLAIN DYNAMO (COLD) FOR REGULATOR NO. 174 CONTROLLED (HOT) CONTROLLED (COLD) CHAR A CONTROLLED (HOT) CHAR C (COLD) CHAR C OTHER TEXT: Bottom Right Corner: S.2.C. | ||