Modification bulletin for Kestrel V.XII aero engine exhaust manifolds to allow for expansion and contraction.
| Identifier | ExFiles\Box 10\5\ 05-page056 | |
| Date | 28th January 1937 | |
| MODIFICATION TECHNICAL BULLETIN AERODROME, Hucknall. REF: AERO/G/JSR DATE: 28.1.37 SUBJECT. "Kestrel(Aero Engine)" V.XII Aero Engines. Exhaust Manifolds. OBJECT. To provide means to allow for expansion and contraction. MODIFICATION. To fit slotted type securing flanges to the inlet and outlet ends of the exhaust manifolds and fit special shouldered studs to suit. REPLACEMENT EFFECTED. Immediately on all production engines and on repair engines when manifolds are renewed. AFFECTING. Kestrel(Aero Engine) V.XII engines from No. K.V.XII. 101 onwards. All earlier engines modified as opportunity arises. INTERCHANGEABILITY. Manifolds as modified are interchangeable with the earlier type, providing the special studs are also fitted. DRAWING NOS. Manifolds R.H. 38576/12 " L.H. 38577/12 Stud R.M. 2383 WEIGHT. Increase negligible. | ||
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).