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).
Tests in progress for the New Phantom model, ordered by urgency.
| Identifier | WestWitteringFiles\N\2October1925-December1925\ Scan66 | |
| Date | 15th October 1925 | |
| R.R. 498A (50 H) (D.D. 31, 12-6-25) J.H.L. EXPERIMENTAL REPORT. -1- Expl. No. REF: HES/LG 15.10.25. EXPERIMENTAL TESTS IN PROGRESS. ORDER OF URGENCY. NEW PHANTOMCodename for PHANTOM I. 1 Over-oiling. 2 Piston knocks. 7 Reducing exhaust noise. 19 Tests to reduce effect of autovac on engine running. 8 Reducing the effectiveness of the brakes. 21 Investigation of complaints of vibration raised by Sales. 14 Squeaking brakes. 3 Steering experiments. 4 High speed steering wobbles. 5 Improvements to present friction shock absorbers. 6 Tests with hydraulic shock absorbers. 12 Improved big end bearings. 13 Improved and lightened clutch. 11 Improved and lighter induction pipe - water heated. 17 Louvred bonnets. 20 Subframe. 18 Spare wheel carriers. 9 Lightened front axle and brake parts. 15 Springs in cross steering tube. 16 Well base rims and wheels. 10 Ventilation to battery ignition - spring on magneto control. contd :- | ||