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).
Series of five graphs showing the results of cooling tests on a 20 HP engine.
| Identifier | WestWitteringFiles\K\July1923\ Scan72 | |
| Date | 21th July 1923 | |
| Main Title: COOLING TEST ON 20 H.P. Graph A: Y-Axis: TEMP AT TOP & BOTTOM OF RADIATOR X-Axis: TIME IN MINS Legend: COMPARISON OF SHUTTERS ON SHUTTERS OFF LOUVRES CLOSED, UNDERSHIELD ON Graph B: Y-Axis: TEMP. C° X-Axis: TIME MINS. Legend: COMPARISON OF LOUVRES OPEN LOUVRES CLOSED SHUTTERS ON & OPEN Graph C: Y-Axis: TEMP. C° X-Axis: TIME MINS. Legend: COMPARISON OF UNDERSHIELD OFF LOUVRES OPEN UNDERSHIELD OFF LOUVRES CLOSED BONNET OFF OPEN SHUTTERS On-graph label: LOUVRES OPEN Graph D: Y-Axis: TEMP. C° X-Axis: TIME MINS. Legend: COMPARISON OF FAN OFF LOUVRES CLOSED FAN OFF LOUVRES OPEN OPEN SHUTTERS Graph E: Y-Axis: TEMP. C° X-Axis: TIME MINS. Legend: COMPARISON OF FAN OFF FAN ON OPEN SHUTTERS Stamp: LIMITED ROOM. 21 JUL. 23 | ||