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 design updates for Merlin B and C aero engines.
| Identifier | ExFiles\Box 30\3\ Scan116 | |
| Date | 16th March 1935 | |
| - 4 - BY.1/G.16.3.35. "MERLIN B." AERO ENGINE. LeC. 4366 Inlet & Exhaust Valve Lift Curve .............. Recd.16.2.35. Detail drawings completed and issued ................... 25.2.35. "MERLIN C" AERO ENGINE. RR. Sch. 816 Modification to Water Pump to clear Electric Starter. Detail drawings completed and issued ................... 12.2.35. RR. Sch. 826 Supercharger & Dynamo Drive. Detail drawings completed and issued ................... 11.2.35. DES. 2347 Modfn. to "Ramp" Cylinder Head ............Recd. 22.1.35. Detail drawings will be put in hand if required. DES. 2351 Modfn. to Oilways in C'case for Hamilton C.P. Airscrew .......................................... Recd. 25.1.35. Detail drawings completed and issued ................... 8.2.35. DES. 2353 Oil Pump (for undercarriage retraction) ........Recd. 5.2.35. Detail drawings completed and issued ................... 15.2.35. DES. 2355 Dual Petrol Pump & Drive ......................Recd. 5.2.35. Detail drawings completed and issued ................... 14.2.35. DES. 2357 H.P. Oil Feed for Dual Petrol Pumps ............Recd. 5.2.35. Detail drawings completed and issued ................... 20.2.35. DES. 2358 Arrgt. of Starting Gear ..................... Recd. 9.2.35. Detail drawings completed and issued ................... 27.2.35. DES. 2361 Governor for positioning Gun Gear Shaft for 3-Blade Airscrew ............................ Recd. 9.2.35. Detail drawings completed and issued ................... 25.2.35. DES. 2371 Modfns. to Clutch Springs and Gear Casing - Starting Gear ............................. Recd. 13.2.35. Detail drawings completed and issued ................... 20.2.35. DES. 2379 Modfn. to Free-Wheel Clutches - Starter Gear (Modfn. to DES. 2358) .................... Recd. 21.2.35. Detail drawings completed and issued ................... 25.2.35. LeC. 4371 Modified Cylinder & Head with Inlet Side Spg.Plug. Recd. 26.2.35. Detail drawings are in hand. | ||