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 for an improved air vent and larger filler in the petrol tank to prevent overflowing.
| Identifier | ExFiles\Box 135\2\ scan0083 | |
| Date | 24th September 1926 | |
| RR 288A (10H) (Sh. 72 18.7.23) MP 274954A X3701 COMPLETED 19.10.26 ALTERATIONS TO R.R. AERO-ENGINE PARTS. STAMPED: 40/50 HP CHASSIS+ STAMPED: CONDOR EAGLE FALCON HAWK DATE: 24.9.26 X No. 3701 (3408 crossed out, X7190 handwritten) Drawing No. L.O.P. P.74781 Part List N.sch.2151 STAMPED: Air Ministry consent obtained Difference in weight: Description of Parts: IMPROVED AIR VENT IN PETROL TANK WITH LARGER FILLER. Origin: To prevent over-flowing of petrol. 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. DECISION: "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. (Ticked) STAMP: APPROVED Signature of Expl. Dept. that above is correct Weight of Old Part: Cost of Old Part: £ nil Cost of Parts in Works and Stores which will be scrapped if commenced on:- Weight of New Part: Cost of New Part: £ 1/5 Difference per Engine: Difference per Engine: £ 1/5 increase (COST handwritten) Signature of Mr. De LOOZE that above is correct: My Rl 4/10/26 SIGNATURES | DATE | REMARKS MR.JOHNSON C.W.B. | 25.9.26 | Agreed. CWB. MR. B. JOHNSON | 18.10.26 | Agreed. B.Johnson. MR. ROYCE | 1.10.26 | Agreed. FHR. 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. E.{Mr Elliott - Chief Engineer} MR. HIVES | 24.9.26 | Agreed. Hs.{Lord Ernest Hives - Chair} Mr. Northey. | 29.9.26 | Agreed. PN.{Mr Northey} | ||