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 front springs, brackets and shackles to suit front wheel brakes.
| Identifier | ExFiles\Box 52\2\ Scan098 | |
| Date | 12th May 1924 | |
| RR 755 (10M) (SL391 2-11-23) MP 281297 V4429 COMPLETED 5. 6. 24. STANDARDISATION of CHASSIS PARTS. Date 12. 5. 24. Description of Parts. FRONT SPRINGS, BRACKETS AND SHACKLES. Origin. To suit front wheel brakes. Experimental Test Report. The Front springs are made by Firths - they are 43¼" long. The Spring is anchored at the rear end and shackled in front. Front springs 25% stiffer than present standard. Road Test Report. Run 10,000 miles in France on 98-NK. Run 4500 miles in France on 9-PK. Run on 35-PK, 92-NK and 46-PK in England total of 6700 miles - no trouble and no spring failures. Run 250 hours on bumping tests - results better than standard. Weight of Old Part. Cost of Old Part. £ 3. 2. 8 Weight of New Part. Cost of New Part. £ 6. 6. 4 Difference per Car. Difference per Car. £ 3. 3. 8 increase. Signature of Mr. De LOOZE that above is correct. My/Rns. 2. 6. 24. X No. 3033 Drawing No. Part List A Scrap and replace at all costs, including Chassis already delivered to customers. B Scrap and replace on Chassis in works. C Scrap present stock and replace on all Chassis not yet handed to test. D Use existing stock Alteration effective on future Chassis Cost of Parts in Works which will be scrapped if commenced on:- Series.........£......... Series.........£......... Series.........£......... SIGNATURES DATE REMARKS MR. JOHNSON 4.6 agreed GJohnson MR. B. JOHNSON 3.6.24 agreed H MR. ROYCE 24.5.24 Agreed. FHR. MR. WORMALD 13.5.24 Agreed. Wor. {Arthur Wormald - General Works Manager} MR. ROWLEDGE 13.5.24 Agreed. Rg. {Mr Rowledge} MR. DAY 14.5.24 Agreed. Da. {Bernard Day - Chassis Design} MR. BAILEY 13.5.24 Agreed. BY. {R.W. Bailey - Chief Engineer} MR. PLATFORD 13.5.24 'Disappointing for good front springing. If essential for front wheel brake, must agree. EP. {G. Eric Platford - Chief Quality Engineer} ' MR. ELLIOTT 16.5.24 Agreed. E. {Mr Elliott - Chief Engineer} MR. NORTHEY 13.5.24 Agreed. PN. {Mr Northey} MR. HIVES 2.6.24 Agreed. E.Hives. | ||