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 report page detailing an endurance test, primary volt-speed curve, and primary ampere-speed curve for a component.
| Identifier | ExFiles\Box 49\5\ Scan165 | |
| Date | 19th July 1922 guessed | |
| -3- Contd. (7) Endurance test :- Fairly heavy tracking in the distributor. Black mark on each segment, corresponding to position of brush at retard. Particles of carbon in bottom of distributor. Carbon dust deposit behind contact-breaker from earthing brush. Brushes appear to be too soft. Particles of fibre rubbing block left on cams. (8) Primary volt-speed curve :- * Any higher reading of the scale. Speed. Volts. Volts/Speed. 400 4.56 .01139 800 8.30 .01036 1200 11.58 .00965 1600 14.52 .00908 2000 17.20 .00860 2400 19.0 .00792 2600 <- 2800 -> * 20.00 .00770 3200 3400 (9) C.C. Primary ampere-speed curve. Speed. Amperes. Speed Amperes. 100 1.0 1200 3.64 200 1.55 1600 3.80 300 2.10 2000 3.92 400 2.60 2400 3.96 600 3.05 2800 4.00 800 3.33 3200 4.00 1000 3.50 3400 4.02 Contd. | ||