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).
Progress report on design modifications for the Kestrel and Merlin 'F' engines.
| Identifier | ExFiles\Box 161a\4\ scan0053 | |
| Date | 31th March 1936 | |
| (sheet 6) ITEM DESIGN POSITION. KESTREL ENGINE. Mod. to adaptation of Schwarz blades to R.R. Hele Shaw hub. In hand. Application of Automatic mixture control to Kestrel X engines. Completed 30.3.36 Arrangement of Auto Klean strainer - R.R.Hele Shaw airscrew oil system. Completed 30.3.36 Modified floatchamber drain plug - Yugo Slavia Fury. Completed 20.3.36 Modification to R.R. Heleshaw airscrew hub to facilitate machining. In hand. Adaptation of Negretti & Zambra capsule unit and extra lubrication- automatic boost control. In hand. MERLIN "F" ENGINE. Modification to dual petrol pump. In hand. Adaptation of Hobson variable datum boost control to give increased boost for take-off. In hand. Modified cylinder head oil drain drilling for future castings. Completed 31.3.36. Application of modified Lockheed pump. Completed 28.3.36. Altered core hole positions for strengthened supercharger front volute casing. Completed 17.3.36. Starter motor engaging clutch - location for spring housings. Completed 19.3.36. V.P. airscrew connection with shortened bosses. Completed 17.3.36. Boost pipe to suit two position mixture control. Completed 19.3.36. | ||