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).
Alteration to Aero Engine Parts for an improved air vent and larger filler in the petrol tank.
| Identifier | ExFiles\Box 171\1\ img046 | |
| Date | 24th September 1926 | |
| RR 288A (10H) (SL 72 18-7-23) MP 274954A ORIGINAL COMPLETED 19.10.26 40/50 HP. CHASSIS ALTERATIONS TO R.R. AERO ENGINE PARTS. [STAMP: CONDOR FALCON HAWK] DATE 24.9.26 Description of Parts: IMPROVED AIR VENT IN PETROL TANK WITH LARGER FILLER. Origin: To prevent over-flowing of petrol. X No. 7460 No. 3701 Drawing No. L.O.P. F.74781 Part List N.sch.2151 [Struck through text: Air Ministry consent obtained] [Struck through text: Difference in weight.] Experimental Test Report: It was necessary with the present filler to fill up slowly otherwise the petrol gushed out due to air becoming trapped. The improved design overcomes this and allows petrol to freely enter tank with no slowing down. This was fitted to 12-EX and ran 10,000 miles in France. At no time was any petrol lost through over-flowing whilst being filled from petrol pump. No slowing down of pump was necessary. "A" - Scrap and replace at all costs. "B" - Scrap and replace on those engines in Works. "C" - Scrap present stock and replace on all engines not yet handed to test. "D" - Use up existing stock. Alteration effective on future engines. [STAMP: PHANTOM] Signature of Expl. Dept. that above is correct Weight of Old Part Cost of Old Part: £ Nil. Weight of New Part Cost of New Part: £ 1s. 5d. Difference per Engine: £ 1. 5d. Increase. Cost of Parts in Works and Stores which will be scrapped if commenced on:- Signature of Mr. De LOOZE that above is correct: My/Rb.{R. Bowen} 4.10.26. SIGNATURES | DATE | REMARKS [REDACTED] C.W.B. | 25.9.26 | Agreed. CWB. MR. B. JOHNSON | 18.10.26 | Agreed. B.Johnson. MR. ROYCE | 1/10/26 | Agreed JHR MR. WORMALD | 27.9.26 | Agreed. Wor.{Arthur Wormald - General Works Manager} MR. ROWLEDGE | 27.9.26 | Agreed. Rg.{Mr Rowledge} MR. DAY | 1/10/26 | Agreed DA{Bernard Day - Chassis Design} MR. BAILEY | 11.10.26 | Agreed. BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD | 27.9.26 | Agreed. EP.{G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT | 1/10/26 | Agreed AE MR. HIVES | 24.9.26 | Agreed. Hs.{Lord Ernest Hives - Chair} Mr. Northey. | 29.9.26 | Agreed. PN.{Mr Northey} | ||