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 fan belt test, detailing necessary modifications to driving pulleys when using a standard fan.
| Identifier | ExFiles\Box 55\2\ Scan022 | |
| Date | 22th April 1913 guessed | |
| Fan Belt Test. This is similar to Dynamo Belt Test but if a standard fan is to be used, it will be necessary to make the driving pulleys, on the countershaft, singly, otherwise the blades will foul. Jayz | ||