Graphs showing the power consumption of pneumatic tyres under varying load, speed, and pressure.
| Identifier | ExFiles\Box 157\1\ scan0030 | |
| Date | 11th May 1932 guessed | |
| FILE UNDER DUNLOP T 4059 POWER CONSUMPTION OF PNEUMATIC TYRES. Top Graph: Y-Axis: HORSE POWER X-Axis: LOAD - LBS. PER TYRE EFFECT OF LOAD 7.00 - 21" FORT SILENT. 40 lbs/sq' 48 MPH Bottom Graph: Y-Axis: POWER CONSUMPTION - HORSE POWER Line labels: 30 lbs/sq', 35 lbs/sq', 40 lbs/sq' EFFECT OF SPEED AND PRESSURE 7.00 - 21" FORT SILENT LOAD - 1300 lbs. Handwritten Note: 33 Crown Dia 27% high for transmission Footer: A. {Mr Adams} G. {Mr Griffiths - Chief Accountant / Mr Gnapp} THORNTON LTD MANCHESTER REG. DIV. | ||
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).