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).
Requesting parts for a Wraith ignition coil experiment using a Delco-Remy case and Mexphalte compound.
| Identifier | ExFiles\Box 164\5\ img362 | |
| Date | 16th June 1938 | |
| To HPS.{Horace Percy Smith - Experimental Factory Mgr} c. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} 6017 BY/RD./B.16.6.38. WRAITH IGNITION COIL : SEC.8140. Will you please put in hand one set of parts to prints herewith :- DW.717 - Half Collar - Ignition Coil. 2 off. When these are complete, we want an ignition coil building up comprising the Delco-Remy case which HPS{Horace Percy Smith - Experimental Factory Mgr}/TT has, the existing ignition coil which Rm{William Robotham - Chief Engineer}/RC{R. Childs} has, the whole assembly to be in accordance with D.CD.746, print attached herewith. The whole case is to be filled with the bituminous compound "Mexphalte", the object of this experiment being to determine how much temperature drop we achieve by using the metal case. BY/RD. | ||