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).
Note on a brake test for car 1482, detailing the total weight held on a 1 in 4 gradient.
| Identifier | Morton\M4.1\ img001 | |
| Date | 3rd January 1911 | |
| R.R. 148 (20 H) (W 585. 16.6.11) G 1737. X883 Brakes X956 3/1/'11 2500. EH = Ernest Hives! 1482 fitted with standard brakes of that series held the car total weight of 5172 lbs on a gradient 1 in 4. each brake held the car. EH 3/1/11 See Sheet on CRS file. under B.O11/ BH 5172 lb = 46cwt - 1qr 6lb | ||