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).
Standardisation of parts for the Wraith Steering Gear to give lighter steering.
| Identifier | ExFiles\Box 171\5\ img013 | |
| Date | 12th November 1937 | |
| COMPLETED 18.1.38. RR 758B (10H) (49968) 19/10/37 C.B.Co. BENTLEY STANDARDISATION OF PARTS Date Issued 12.11.37 Sheet No. B.2. Drg. No. Rm.{William Robotham - Chief Engineer}342. L.O.P.S. Description: WRAITH STEERING GEAR. Purpose: To give lighter steering with 6.50 tyres. Brief Report and Remarks: Has already done 5300 miles in England on 6.B.IV and is approved subject to 15,000 miles in France before coming on to production. Has been approved by Sales. When recommended for Introduction: 1st. in M Series. Report References: By: Rm{William Robotham - Chief Engineer}, Da{Bernard Day - Chassis Design}, Mx.{John H Maddocks - Chief Proving Officer} Cost Table: Old Parts: Material £6.15.10.5, Labour £5.1.8, Burden £8.17.11.5, Total £20.15.5. New Parts: Material £9.7.6, Labour £3.8.1.5, Burden £5.19.2, Total £18.14.9. Decrease in Cost £ 2. 0. 8d. GRH 8/1/38 Cost of Tools £ Production Position and Comments: Wraith type steering can be introduced without Scrap at the 1st. chassis in 'M' Series and involved a tool cost of £185.0.0d. This outlay will be recovered by the 90th. chassis in 'M' series due to the reduction in factory cost of £2.0.8d. per chassis provided by the new steering box. RHC.{R. H. Coverley - Production Engineer} Authorisation to Proceed. Introduce on the 1st Chassis in M Series. Signature Sg.{Arthur F. Sidgreaves - MD} [Signature] 17-1-38 17-1-38 Signature Hs.{Lord Ernest Hives - Chair} [Signature] 17/1/38 | ||