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).
Progress report on the design and development of various aero engine components.
| Identifier | ExFiles\Box 30\3\ Scan055 | |
| Date | 19th January 1935 | |
| - 4 - BY.1/G.19.1.35. P.V.XII AERO ENGINE. LeC. 4221 6.5 to 1 Fully Ribbed Piston for Stud. Type Head. Recd. 6.12.34. Detail drawings completed and issued ................... 29.12.34. AERO - UNIVERSAL S/C. TEST UNIT. LeC. 4171 Plan View of Crankcase ................................... Recd. 5.11.34. LeC. 4172 Crankcase & Camshaft Drives .............................. Recd. 5.11.34. LeC. 4173 Transverse Sections - Top Half Crankcase ................. Recd. 5.11.34. LeC. 4174 Crankcase Lower Half & Drives to Pumps and Contact Breakers ......................................... Recd. 5.11.34. LeC. 4175 End Covers, Starter Drive & Ignition Indicator ........... Recd. 5.11.34. All castings issued, remainder of parts will be issued next week. LeC. 4265 Dowelling for Rocker Cover ............................... Recd. 19.12.34. Detail drawings completed and issued ................... 22.12.34. LeC. 4269 Modified Adjusting Screw. Exhaust Valve Rocker. High Power Cylinder ...................................... Recd. 20.12.34. Detail drawings completed and issued ................... 22.12.34. LeC. 4170 Kestrel Ramp Head and Block .............................. Recd. 8.11.34. Detail drawings completed and issued ................... 2.1.35. LeC. 4181 Variable Valve Lift Mechanism (2 Sheets) ................. Recd. 6.12.34. LeC. 4182 Control Characteristics and Assembly of Driving Disc. Recd. 5.12.34. LeC. 4183 Half Speed Wheel Balance Weight .......................... Recd. 28.11.34. LeC. 4185 Modified Valve Springs (5000 r.p.m.) .................... Recd. 7.11.34. Detail drawings will be put in hand as soon as possible. LeC. 4216 General Arrgt. & Schme of Piping of single Cyl. ............ Recd. 3.12.34. Piping will be put in hand as soon as possible. LeC. 4253 Mod. to Cyl. Dowels ...................................... Recd. 14.12.34. Detail drawings completed and issued ................... 21.12.34. MERLIN AERO ENGINE. DES. 2330 Piston. ................................................ Recd. 27.12.34. DES. 2331 Cylinder Head, Valves & Fittings ....................... Recd. 31.12.34. DES. 2332 Details of Crankcase & Cylinder Liners, Crankshaft & Conn. Rods. .......................................... Recd. 31.12.34. DES. 2335 Lower Vertical Section through S/C. Volute. .......... Recd. 2.1.35. Detail drawings are in hand. | ||