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).
Performance of test armatures for a Bensport and 40/50 HP dynamo.
| Identifier | ExFiles\Box 60\3\ Scan242 | |
| Date | 15th September 1933 | |
| S/W. Hs{Lord Ernest Hives - Chair}/Wst..from PN.{Mr Northey} Copy to Wor.{Arthur Wormald - General Works Manager} C. E.{Mr Elliott - Chief Engineer} By.{R.W. Bailey - Chief Engineer} Da.{Bernard Day - Chassis Design} x6044 PN.{Mr Northey}3/WT15.9.33 Bensport and 40/50 H.P. dynamo for use with C.A.V. Vibrator Regulator. Referring to your Hs{Lord Ernest Hives - Chair}/Wst.3/MA14.9.33 as was to be expected, the performance obtained with the two test armatures was altogether better at the higher speeds, by employing stamped laminations instead of milled slotted plates, and I hope that we shall soon benefit by the different method. I do not understand however why the experiments were made with 12 conductors per slot with the smaller wire instead of 16 with 16 SWG. because the cutting-in point is at least as important as the question of output. PN.{Mr Northey} | ||