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 a low speed jet spindle and cone to prevent whistling noise and for strengthening.
| Identifier | ExFiles\Box 172\1\ img023 | |
| Date | 28th February 1923 | |
| R R 746 (5 H) (S H 268, 20-9-20) G 9564 COMPLETED 8.3.23. STANDARDISATION of CHASSIS PARTS. Date 28.2.23. Description of Parts. LOW SPEED JET SPINDLE AND CONE. Origin. To prevent whistling noise and to strengthen. Experimental Test Report. We remove the collars above the low speed jet cone which are liable to cause a whistle. At the same time we wish to make the jet cone solid with the stainless steel spindle. We also propose modifying the angle of the cone with the object of reducing the range on the low speed jet. Road Test Report. Fitted to 4-G-11 - run 1000 miles. Fitted to 6-G-11 - run 800 miles. Tests prove these modifications to be an improvement. Signature of Exp. Dept. that above is correct. E.{Mr Elliott - Chief Engineer} Hives. Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. £0. 2. 8 Cost of New Part. £0. 2. 4 Difference per Car. £0. 0. 4d. saving. Signature of Mr. De LOOZE that above is correct. My/UW 3.3.23. Box X No. 4228 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.....£..... Storekeeper advised re above: Storekeeper's Signature. SIGNATURES TABLE: SIGNATURES | DATE | REMARKS Mr. JOHNSON (Mr. E.{Mr Elliott - Chief Engineer} Johnson) | 8.3.23 | Agreed. CJ. | 8.3.23 | Agreed. BJ. Mr. ROYCE | 24/3/23 | Agreed FHR. Mr. WORMALD | 28.2.23 | Agreed. Wor.{Arthur Wormald - General Works Manager} Mr. BARRINGTON (Mr. Rowledge) | March 1st/23 | Heartily Agreed Ry. Mr. DAY | 2.3.23 | Agreed. Da.{Bernard Day - Chassis Design} Mr. BAILEY | 28.2.23 | Agreed. BY.{R.W. Bailey - Chief Engineer} Mr. PLATFORD | 28.2.23 | Instructions should be issued to correct the whistle on all future cars before delivery. Agreed. EP.{G. Eric Platford - Chief Quality Engineer} Mr. NORTHEY | 2.3.23 | Agreed. PN.{Mr Northey} | ||