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).
Presenting a table of results from heating tests conducted on inherently controlled chassis dynamos.
| Identifier | WestWitteringFiles\G\June1921\ Scan96 | |
| Date | 1st June 1921 | |
| To R.{Sir Henry Royce} & E.{Mr Elliott - Chief Engineer} from EFC. c. CJ. c. En. & By.{R.W. Bailey - Chief Engineer} c. Da.{Bernard Day - Chassis Design} & EP.{G. Eric Platford - Chief Quality Engineer} c. EWT. for R&R.Inc. ORIGINAL. EFC3/T3.6.21. X.3936 HEATING TESTS OF INHERENTLY CONTROLLED CHASSIS DYNAMOS. We now send you table of collected results of heating tests of inherently controlled chassis dynamos, at constant output 9 amps at 14.6 volts. Some of these have been reported before but are now set out in the table, together with the results of the more recently performed heating tests on the Smith 2D and the U.S.A. Bosch dynamos, for comparison. The table needs no explanation than is contained thereon. It is interesting to compare the temperatures, rises of temperature, rotation speeds, etc. for the various machines on these heating tests. Similar conditions of one machine to another was that as long as possible the output was adjusted to be maintained at 9 amperes with a constantly adjusted terminal voltage of 14.6. EFC. | ||