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).
Status report on the position and tests being carried out on Wraith and Bentley III units.
| Identifier | ExFiles\Box 155\2\ scan0237 | |
| Date | 3rd June 1938 | |
| To Rm.{William Robotham - Chief Engineer} c. to Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} c. to Rm{William Robotham - Chief Engineer}/GTS. c. to Rm{William Robotham - Chief Engineer}/Mthns. 13/5 Rm{William Robotham - Chief Engineer}/Swd1.17/JH.3.6.38. POSITION OF AND TESTS BEING CARRIED OUT ON WRAITH AND BENTLEY III UNITS. Test Bed Units. WRAITH III. No.1 (Temporary in 29.G.VI) No.2. No.4. BENTLEY III. No.1. Chassis Unit. No.3. (24.G.VI). No.5. (28.G.VI). No.6. (27.G.VI). No.7. (26.G.VI). No.8. (25.G.VI). No.9. (Later to be fitted in 29.G.VI). No.2. 7.B.V. No.3. 1st. B.50 chassis Other Units. Wraith II No.1. Wraith II No.1 Unit. Spare unit used for previously for piston scuffing tests. Obsolete 25/30 cranks and timing gear. W/M main bearingd and steel shims. Hall's metal big ends. Up-to-date bushing of oil pump. Sludge trap, improved section strainer and ribbed lower half. External oil pressure filter. 3 Pistons with tin plating, 3 without. | ||