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 tests for Wraith III, II, and 25/30 units, including test bed, chassis, and engine specifications.
| Identifier | ExFiles\Box 155\2\ scan0152 | |
| Date | 23th September 1937 | |
| File 130 To Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} c. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} c. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} c. Rm{William Robotham - Chief Engineer}/Cis. c. Rm{William Robotham - Chief Engineer}/Mths.{Reg Matthews} POSITION OF TEST BEING CARRIED OUT ON WRAITH III. AND II. UNITS ALSO 25/30. Test Bed Units. G.17. C.10 (small bore) W.7.Z. W.III. No.2. W.III. No.1. Chassis Units. J.15. (22.G.V.) W.III. No.1. (26.G.VI) Black. W.III. No.3. (24.G.VI) Mar. & Black Sal. W.III. No.4. (27.G.VI) Brown. W.III. No.5. (28.G.VI) Mar. Sports Sal. W.II. No.2. (25.G.VI) Grey. ----------------- G10. (Small Bore) (Stored at Russell St.{Capt. P. R. Strong}) Whitemetal main bearings. Crankshaft with 20/25. balance weights. Lengthened conn. rods BV-89 to suit fitting of Phantom III.type. pistons. Hall's solid metal big ends. E.86672 pistons - Rh.{R. Hollingworth} semi-split skirt. Cylinder block ex B.2. unit. Small bore standard Bentley cylinder head ex. B.2. unit. Continued. | ||