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).
Request for temperature test figures on standard production ignition coils for Bentley and Phantom III models.
| Identifier | ExFiles\Box 164\5\ img350 | |
| Date | 20th May 1938 | |
| To Rm{William Robotham - Chief Engineer}/RC.{R. Childs} .6617. BY/RD.1/B.20.5.38. IGNITION COILS - SEC.8140. Will you please let us have figures for a temperature test on the standard production coil :- Bentley - D.72503 (22 S.W.G.). Ph.III - D.75260 (21 S.W.G.). for comparison with those in Rm{William Robotham - Chief Engineer}/RC.{R. Childs}8/JH.12.5.38., on Wraith and Delco coils. BY/RD | ||