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).
The production difficulties of the Condor water pump rotor, suggesting a cast alternative.
| Identifier | ExFiles\Box 38\6\ Scan062 | |
| Date | 24th September 1918 | |
| X.3382 WATER PUMP ROTOR. Condor Extract from EH2/LG24.9.18. The water pump rotor with the loose blades is not easy to produce. We have not been able to set the blades true enough to avoid truing up after they are soldered in position. The truing up can only be done satisfactory on a grinding wheel but it is very difficult to get the wheel in to form the curve at the back of the blades. We suggest a cast rotor might be tried fixed on th the steel spindle. | ||