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 larger diameter petrol pipe to reduce the risk of Autovac failure.
| Identifier | ExFiles\Box 40\4\ Scan272 | |
| Date | 20th October 1927 | |
| RR 755 REVISED (10M) (OE 649 9-12-26) BM. 2/1167. X3579 STANDARDISATION of CHASSIS PARTS. Date 20.10.27 Description of Parts. LARGER DIAMETER PETROL PIPE. Origin. To reduce risk of Autovac failing. [Box on right] 3579 X No. 8510 Drawing No. 8460 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. Experimental Test Report. In our report Hs{Lord Ernest Hives - Chair}/AJL2/LG14.6.27 we gave the increase in efficiency of the Autovac by increasing the dia. of the petrol pipe from .230" bore to .300". Road Test Report. Run on 10-EX for 11,000 miles. Run on 12-EX 2000 miles. The production test states that this modification will help them to get cars through test. [Stamp] PHANTOM Weight of Old Part. Cost of Old Part. £ Weight of New Part. Cost of New Part. £ Difference per Car. Difference per Car. £ Signature from Cost Dept. that above is correct. Cost of Parts in Works which will be scrapped if commenced on :- Series..........£......... Series..........£......... Series..........£......... [Approval Table] INITIAL | DATE | REMARKS BJ. R.{Sir Henry Royce} WOR.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 31/10/27 | Not agreed WE PN.{Mr Northey} CWB. HS.{Lord Ernest Hives - Chair} | 20.10.27 | Agreed. Hs.{Lord Ernest Hives - Chair} [Handwritten remark across rows WOR{Arthur Wormald - General Works Manager} to EP{G. Eric Platford - Chief Quality Engineer}] Do not agree. DHR & Hs{Lord Ernest Hives - Chair} explained suggesting small modification for production test J/C | ||