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).
List of modifications and tests for various vehicle chassis or models.
| Identifier | ExFiles\Box 82\4\ scan0138 | |
| Date | 17th June 1935 guessed | |
| 1-B-IV. 3.500 bore engine unit. Modified induction system and intake silencer. 1° inclination pivots and front axle - N.S.4000/4303. Strengthened steering pivots - N.S.4303. Water excluder screens - N.S.4348 Oil seals on rear axle - N.S.4193. Front brake camshaft oil drain - N.S.4370. Aerolite pistons. Noise insulation scheme. 10/43 rear axle gears. Bumper bars and dropped crossmembers. Lightened and simplified exhaust system. 3-B-IV. Supercharger. Zenith carburetter. Crankshaft 1.000" wide crankpin. Front axle control dampers. Girling brakes, Hs.{Lord Ernest Hives - Chair}1836. Strengthened steering pivots, N.S.4303. Silencer lagging, Lec.4110. Steel brake shoes RR.Sch.309. Noise insulation scheme. Tests on fading brakes and brake drum temp. Tests on servo temp. GEARED STARTER MOTOR LEAD BRONZE BEARINGS B-23-AE. Piston seizure tests. Borg & Beck clutch. Cycle type wings. Improved engine mounting. Improved axle control, springs shackled at the front. FAN FAILURE TESTS LEAD BRONZE BEARINGS 2-B-IV. Bentley. Isolated change speed mechanism. Noise insulation scheme. Bumper bars and dropped crossmembers. LEAD BRONZE BEARINGS 4-B-IV. Lappin. Improved lock nuts on Dunlop wheels. Noise insulation scheme. Bumper bars and dropped crossmembers. High compression head. TEXTOLITE GEARS | ||