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).
Performance and temperature data log chart for 'SPECTRE 3' vehicle road tests.
| Identifier | ExFiles\Box 91\4\ scan0251 | |
| Date | 6th September 1935 | |
| SPECTRECodename for Phantom III 3 Top Section (Dates and Test Details): 24-7-35 MORNING 49.9 MPH 387 Miles 24-7-35 NOON 46.8 MPH 242 Miles 25-7-35 MORNING 45.7 MPH 378 Miles 25-7-35 NOON 48.1 MPH 353 Miles 27/7/35 147 MILES 27-7-35 28-7-35 SPECIAL TEST SPEED 50 M.P.H. 29-7-35 SPECIAL TEST SPEED 50 M.P.H. 30-7-35 SPECIAL TEST SPEED 50 M.P.H. 13/8/35 324 MPH 108 MILES 14-8-35 45.8 MPH 325 Miles 15-8-35 68 MILES 16-8-35 42.4 MPH 318 Miles 17-8-35 39.8 MPH 263 Miles 18-8-35 MORNING 52.3 MPH 410 Miles 18-8-35 NOON 48.0 MPH 336 Miles 19 & 20-8-35 213 MILES 44.6 MPH, 181 MILES 45.5 MPH 27-8-35 38.5 MPH 334 Miles. TRIP TO SWITZERLAND, ITALY, AUSTRIA (STELVIO PASS) & RETURN. READINGS EVERY 2 SQUARES = 20 MILES 28-8-35 27.7 MPH 171 Miles 29/8/35 15 MPH 30-8-35 23.3 MPH 165 MILES 31-8-35 31.7 MPH 267 MILES 1-9-35 42.7 MPH 196 MILES CLIMB UP STELVIO PASS, ITALY. 29th AUGUST 35 30th AUGUST 35 6-9-35 MORN. 39.6 MPH 339 MILES 6-9-35 NOON 33.9 MPH 235 MILES Graph Y-Axis Labels: OIL MPA. PETROL MPG. 525 9, 500 8.5, 475 8, 450 7.5, 425 7, 400 6.5, 375 6, 350 110°C, 100°C, 90°C, 80°C, 70°C, 60°C, 50°C 70 MPH 40°C, 60 MPH, 50 MPH, 40 MPH, 30 MPH, 20 MPH 40°C, 30°C, 20°C, 10°C Graph Titles and Annotations: PETROL CONSUMPTION WATER TEMP. OIL TEMP. SPEED & MILES PER HOUR UNDER BONNET TEMP. AIR TEMP. CARBURETTER AIR INTAKE TEMP. OIL TEMPERATURE NOT TAKEN FAULTY THERMOMETER OIL CONSUMPTION Special Test. AIR PRESSURE TEST IN No 7 REAR BEARING RADIATOR WITH CUTAWAY GRILLE OF / ON RADIATOR TEST WITH THERMOSTATS TAKEN OUT / VALVES FITTED / VALVES TAKEN OUT / THERMOSTAT OUT / THERMOSTAT FITTED READINGS EVERY SQUARE REPRESENTS ONE MILE SPECIAL TEST RADIATOR TEST THERMOSTAT VALVES OUT / FITTED NEW PISTONS FITTED TEST FOR CARBURETTER INTAKE AIR TEMP. AIR INTAKES CONNECTED TO SLOTS IN TOP OF BONNET RADIATOR INLET TEMP. RADIATOR OUTLET READINGS - EVERY 2 SQUARES = 1/2 MILE Readings:- Every two squares = .25 Miles. Bottom Row (Personnel and reference numbers): ROBERTS HAMILTON 11,900 PATTINSON WALSH 12,631 ROBERTS HAMILTON PAT. WALSH G.W.H HAMILTON PEPPER 13,743 ROBERTS HAMILTON HAMILTON PEPPER DARBY 14,129 HAMILTON PEPPER DARBY 14,394 HAMILTON SMITH PEPPER DARBY 15,140 15,552 PAT. WALSH 15,759 W. H & ROBERTS 16,957 G.W.H & ROBERTS PATTINSON WALCH 17,531 ROBERTS DARBY PATTINSON WALSH 17,838 | ||