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).
Page 2 of an experimental report listing vehicle modifications.
| Identifier | WestWitteringFiles\N\July1925-September1925\ Scan236 | |
| Date | 4th September 1925 | |
| R.R. 493A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hs{Lord Ernest Hives - Chair}2/LG/4.9.25. c X 15. Modified change speed mech: and side levers to LeC.2079 and N.sch. 1870/1903/2001. 16. Felt strip on undershield to LeC.2091. 17. Metal dirt excluders on rear brake actuating shafts. (in place of leather) To Derby scheme G.L.152. X 18. Improved rear brake covers to N.sch.2039. X 19. 2 1/4" wider and 1" higher dashboard (modified to take cylindrical autovac) and dashbrackets to N.sch.2001/2 and Derby scheme L.F.606. X 20. New bonnet with side strips and guards for spring damped pendulum lever to N.sch.2037 and Cos.11 bonnet catches. 21. 'B' type steering (.720 lead) to N.sch.1993/2024. 22. 1" higher 'W' series type radiator with bolted-on shutters. 23. Improved radiator shutter control bracket to Derby scheme 654. X 24. Dipping head lights and controls to N.sch.1824/1855 and Derby scheme L.F.599. 25. Instrument board controls to N.sch.2035/6. X 26. Body subframe using subframe brackets F.72192/F.73239, to N.sch.2001/2. X 27. Frame stiffener for front and rear buffers to N.sch.1960. 28. New front Number plate bracket F.72758/9. X 29. Modified lubrication of rear shackle pin for front springs to N.sch.2040. X 30. Modified radiator suspension bracket to N.sch.1958. X 31. Improved accelerator pedal to N.sch.2044. 32. Clutch pedal holder and lever F.73151/2 - G.73671/88 (to give required movement for 'B' type clutch). 33. Modified luggage grid to N.sch.2028. 34. Modified petrol tank to suit No.18 - to N.sch.2028. contd:- | ||