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).
Test log for Dunlop straight-side tyres, tracking mileage, routes, and performance.
| Identifier | ExFiles\Box 45\1\ Scan121 | |
| Date | 7th October 1920 | |
| TESTS ON DUNLOP STRAIGHT-SIDE TYRES. Tyre Pressures - 70 lbs. rear. 65 lbs. front. TABLE DATA: COLUMN HEADERS: Date, Tyres fitted, Position on car, Total mileage F.{Mr Friese}, Total mileage R.{Sir Henry Royce}, Daily miles, Route taken, Remarks. ROW 1: Date: 7.10.20 Tyres fitted: FD.{Frank Dodd - Bodies}4529, FD.{Frank Dodd - Bodies}4536, FD.{Frank Dodd - Bodies}4522, FD.{Frank Dodd - Bodies}4509 Position on car: N front, O front, N rear, O rear Total mileage F.{Mr Friese}: 90, 90 Total mileage R.{Sir Henry Royce}: 90, 90 Daily miles: 90 Route taken: Derbyshire. Remarks: Average speed 20 M.P.H. Moderate roads Tyres are very noisy. ROW 2: Date: 8.10.20 Tyres fitted: FD.{Frank Dodd - Bodies}4529, FD.{Frank Dodd - Bodies}4536, FD.{Frank Dodd - Bodies}4522, FD.{Frank Dodd - Bodies}4509 Position on car: N front, O front, N rear, O rear Total mileage F.{Mr Friese}: 125, 125 Total mileage R.{Sir Henry Royce}: 125, 125 Daily miles: 35 Route taken: Derbyshire. Remarks: Average speed 20 M.P.H. ROW 3: Date: 9.10.20 Total mileage F.{Mr Friese}: --- Total mileage R.{Sir Henry Royce}: --- Daily miles: --- ROW 4: Date: 10.10.20 Tyres fitted: FD.{Frank Dodd - Bodies}4529, FD.{Frank Dodd - Bodies}4536, FD.{Frank Dodd - Bodies}4522, FD.{Frank Dodd - Bodies}4509 Position on car: N front, O front, N rear, O rear Total mileage F.{Mr Friese}: 186, 186 Total mileage R.{Sir Henry Royce}: 186, 186 Daily miles: 61 Route taken: Derbyshire. Remarks: Average speed 25 M.P.H. Roads fair. ROW 5: Date: 11.10.20 Tyres fitted: FD.{Frank Dodd - Bodies}4529, FD.{Frank Dodd - Bodies}4536, FD.{Frank Dodd - Bodies}4522, FD.{Frank Dodd - Bodies}4509 Position on car: N front, O front, N rear, O rear Total mileage F.{Mr Friese}: 234, 234 Total mileage R.{Sir Henry Royce}: 234, 234 Daily miles: 48 Route taken: Derbyshire Remarks: Average speed 20 M.P.H. ROW 6: Date: 12.10.20 Tyres fitted: FD.{Frank Dodd - Bodies}4529, FD.{Frank Dodd - Bodies}4536, FD.{Frank Dodd - Bodies}4522, FD.{Frank Dodd - Bodies}4509 Position on car: N front, O front, N rear, O rear Total mileage F.{Mr Friese}: 254, 254 Total mileage R.{Sir Henry Royce}: 254, 254 Daily miles: 20 Route taken: Derbyshire. Remarks: " " " ROW 7: Date: 13.10.20 Tyres fitted: FD.{Frank Dodd - Bodies}4529, FD.{Frank Dodd - Bodies}4536, FD.{Frank Dodd - Bodies}4522, FD.{Frank Dodd - Bodies}4509 Position on car: N front, O front, N rear, O rear Total mileage F.{Mr Friese}: 278, 278 Total mileage R.{Sir Henry Royce}: 278, 278 Daily miles: 24 FOOTER: Contd. | ||