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).
Temperature test report on Heimanel encased tall coils TR1 and TR3.
| Identifier | ExFiles\Box 45\4\ Scan260 | |
| Date | 6th October 1924 | |
| RFC. WA.{Mr Wallis}85. COPY. 6.10.24. TEMPERATURE TEST ON HEIMANOL ENCASED TALL COILS NOS. TR{Capt. F. W. Turner - Finance}1 and TR{Capt. F. W. Turner - Finance}3. Both of the above coils have been heated in our electrically heated oven at temperatures of 85° and 100°C respectively, and the sparking characteristics observed under the same conditions as the previous tests reported in WA.{Mr Wallis}60. The results are as follows :- Coil. Volts. Max. regular sparking gap. TR.{Capt. F. W. Turner - Finance}1 12 6.5 mm. TR.{Capt. F. W. Turner - Finance}1. 8 5.5 mm. TR.{Capt. F. W. Turner - Finance}3. 12 6.5 mm. TR.{Capt. F. W. Turner - Finance}3. 8 6.0 mm. Temperature of oven 84°C. TR.{Capt. F. W. Turner - Finance}1 12 6.5 mm. TR.{Capt. F. W. Turner - Finance}1. 8 4.5 mm. TR.{Capt. F. W. Turner - Finance}3. 12 6.5 mm. TR.{Capt. F. W. Turner - Finance}3. 8 5.5 mm. Temperature of oven 100°c. It will be seen from the above results compared with previous results that the condition and sparking capabilities of these coils at high temper-atures has not appreciably altered. RFC/HEW. | ||