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 position of and tests being carried out on Wraith III, II, and 25/30 units.
| Identifier | ExFiles\Box 155\2\ scan0114 | |
| Date | 13th July 1937 | |
| 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}/CTS.{C. Trot Salt - Carburation} c. Rm{William Robotham - Chief Engineer}/Mths.{Reg Matthews} c. Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} POSITION OF AND TESTS BEING CARRIED OUT ON WRAITH III. AND II. UNITS ALSO 25/30. Test Bed Units. C.17. C.10 (Small bore) W.7.Z. W.III.No.3. W.II. No.1. Chassis Units. C.15. (22.C.V) C.18. (OAE.20) U.7.S.(18.G.1V) W.II. No.2. (24.G.V1) W.III. No.2. (25.G.V1) W.III. No.1. (26.G.V1) C.10 (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.80672 pistons - RR. semi-split skirt. Cylinder block ex B.2. unit. Small bore standard Bentley cylinder head ex. B.2. unit. EB.615, EB.1746 1.3 exhaust valve, EB.164 inlet, 1.4 dia. 104ccs. 6.32:1 C/R.{Sir Henry Royce} 1 3/4" carbs. S.U. Standard 20/25. HP. R.R. flywheel and clutch. continued | ||