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).
The design of a test rig for Vulture auxiliary gearboxes and the need for a suitable power unit.
| Identifier | ExFiles\Box 27\3\ Scan185 | |
| Date | 29th September 1939 | |
| Rm{William Robotham - Chief Engineer} from EJJ. EJJ.7/WB.{Mr Brazier/Mr Bell}29.9.39. Job No. C.6072/O.N.554. Re Rig for Testing Vulture Auxiliary Gearboxes. We are designing a rig for testing Vulture auxiliary gearboxes and are having great difficulty in obtaining a suitable power unit for driving this rig. We require a unit to give 30 H.P. to 40 H.P. at 2,750 R.P.M. and to be capable of accelerating from approximately 600 R.P.M. to 3,200 R.P.M. in three seconds. We understand that you have a Wraith engine which is at present at the Shardlow Dept., and which would be capable of fulfilling the above duties, and we should like to know if this engine is in good condition and if it could be used for the above job. EJJ. | ||