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).
Status report on design modifications for Kestrel and Merlin engines.
Identifier | ExFiles\Box 30\3\ Scan180 | |
Date | 3rd May 1935 guessed | |
ITEM. (7) DESIGN POSITION. KESTREL ENGINE. R.R.Variable pitch airscrew hub. Completed. Automatic boost control - oil operated servo. Completed. Exhaust flange washer. Completed. Adaption of Hobson automatic boost control. In hand. Modification to holding down clamps - six stud cyl. block. In hand. MERLIN "C"1.ENGINE. Modifications to supercharger drive - reduced layshaft speed. Completed. Exhaust flange washer. Completed. Lugs on thrust housing flange for cowl ring attachment to suit Hawker aircraft. Completed. Modification to drive for Herzmark air compressor. Completed. Crankcase modification - rib thickness increased. Completed. Strengthened crankcase - centre main bearing panel. Completed. Supercharger drive - modified fixing for rear layshaft bushes. In hand. Hub for wooden airscrew. Modified dual petrol pump. In hand. MERLIN "C.II ENGINE". Cylinder head - modified coolant passages and valve centres. In hand. | ||