Meeting notes detailing agreed modifications to components for the M.40 test rig following a conference.
| Identifier | ExFiles\Box 109\3\ scan0127 | |
| Date | 31th March 1941 | |
| To Rm. {William Robotham - Chief Engineer} Ev. {Ivan Evernden - coachwork} Jnr. {Charles L. Jenner} HPS. {Horace Percy Smith - Experimental Factory Mgr} RS. {Sir Henry Royce's Secretary} Rm {William Robotham - Chief Engineer} /H.Hunt. Handwritten Note Top Right: Rm {William Robotham - Chief Engineer} /H.H. Please confirm that everything in this list is as agreed. HPS {Horace Percy Smith - Experimental Factory Mgr} /CEP.3/EP. {G. Eric Platford - Chief Quality Engineer} 31.3.41. Rm {William Robotham - Chief Engineer} 700 OK NG Complete. Main Text: M.40 TEST RIG. The following points were discussed in conference Friday, March 28th, and memo ref. Jnr. {Charles L. Jenner} 1/SW. 20.3.41, was taken as a basis for discussion. Item No.1 - RE.1810 Crankcase top half. (a) Jnr {Charles L. Jenner} 's explanation of the necessity for the crankshaft oil seal to project from the rear of the crankcase was accepted. (b) Three 5" Oil drain holes - It was agreed that Jnr. {Charles L. Jenner} would consider increasing the diameter from .1875" to .218" (c) It was agreed that HH. would issue an amendment deleting scallops on the clutch facing flange. (d) Rm. {William Robotham - Chief Engineer} confirmed that the first three crankcases will be allocated to 8 HP, 10 HP. and 12 HP. Item No.2 - RE.1792 Oil Pump Drive Shaft. It was agreed to centreless grind this shaft to .499" diameter and embody a circlip. Item No.3 - RE.1795 Distributor Drive. It was agreed to reduce the length of splines from 1.200" to 1.100" Item No.4 - RE.1629 Exhaust Manifolds. To simplify drilling, it was agreed the eight flange stud holes should be uniform size. It was left that Jnr. {Charles L. Jenner} would decide the size of the clearance holes. In addition, one inner stud is to incorporate a locating collar. Item No.5 - RE.1680 Bolt, Crankshaft to flywheel. Beyond the agreement that the radius should be increased to .025", no further comment was made. continued | ||
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).