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).
List of modifications and their status for the Kestrel and Merlin 'E' engines.
| Identifier | ExFiles\Box 30\4\ Scan042 | |
| Date | 7th November 1935 | |
| (7) ITEM DESIGN POSITION. KESTREL ENGINE. Adaption of RR. V.P. airscrew hub to take Schwarz blades. In hand. Alternative governor pump for V.P. airscrew. In hand. MERLIN 'E' ENGINE. Modifications to cylinder head. Completed 25.10.35 Modification to top bearing - upper vertical drive. " 25.10.35 Modification to wheelcase top flange - to suit existing engines. " 25.10.35 Modification to wheelcase top flange, for production engines. " 29.10.35 Modified gland - camshaft drive. " 29.10.35 Mod. to dual petrol pump. " 29.10.35 Modified camshaft bearing bolts. " 30.10.35 Mod. to lower camshaft drive. " 1.11.35 Water outlet pipes for front header tank - addition of lips. " 2.11.35 Mod. to generator oil pump drive. " 2.11.35 Mod. to wheelcase to facilitate production. In hand. Alternative R.A.E. compressor drive - on cylinder head. In hand. Drive for Lockheed undercarriage pump. Completed 7.11.35 | ||