Requesting blueprints for modified cylinder head parts for a Bentley 60 Chassis to experiment with eliminating detonation.
| Identifier | ExFiles\Box 123\5\ scan0272 | |
| Date | 31th January 1939 | |
| 1044 c. Rm. {William Robotham - Chief Engineer} c. Rm {William Robotham - Chief Engineer} /Ed. {J. L. Edwards} By {R.W. Bailey - Chief Engineer} /Ald. {F. Allwood - Experimental Design} 1/AW.31.1.39. BENTLEY 60 CHASSIS. CYLINDER. SECTION 5050. VALVES & FITTINGS. SECTION 5060. Please receive herewith 2 Blue Prints of each of the following parts, with an extra two prints of part marked a:- Sec: 5050. a EXS.1383. Cylinder Head - 1 off. EXS.1384. Modification to Cylinder Head. EXS.1385. Inlet Valve Seat - 6 off. Sec: 5060. EXS.1386. Inlet Valve - 6 off. The above is as requested by memo Rm {William Robotham - Chief Engineer} /Ed. {J. L. Edwards} 1/JH.24.1.39, and is in accordance with Rm {William Robotham - Chief Engineer} /Ed {J. L. Edwards} 's sketches attached to same. The alteration consists of a modified combustion chamber, with the valve seat raised .125, to further experiments on the elimination of detonation. Kindly instruct 1 set, with the exception of EXS.1384, which is to be produced from EXS.1385, when the tests on that head are complete. Ald {F. Allwood - Experimental Design} By {R.W. Bailey - Chief Engineer} /Ald. {F. Allwood - Experimental Design} | ||
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).