Minutes of D.Eng.RD development meeting held at Armstrong Siddeley Motors

Present Capt Luby MoS; Mr Saxton, Mr Slatter Armstrong Siddeley Motors. Agenda: Sapphire Sa.4 and Sa.5. (f) Turbine blade failure. Sapphire 6 engines. Sapphire flying test beds: 806 (759) AST Lancaster VM.733; Gloster Meteor WA.820; Canberra WD.933; Canberra 2nd aircraft. Prototype aircraft: 810 (763) Gloster Javelin (twin Sa.6 engines); first and 2nd aircraft; 5th aircraft required by Armstrong Siddeley Motors; Gloster T.118D Trainer (Sa.6 twin engines); Hawker Hunter; English Electric P.1 (twin Sa.5 engines). Adder: 16 engines delivered to Australia. Vickers C.9 (research aircraft). Viper 818 (772) Running times to date 304 hours. 821 (775) Bristol application for Viper. Viper in tail of Mamba Lancaster SW.342. Double Mamba 882 - 824 development. Aircraft 825 - 828 Fairey Gannet VR.546, Fairey 2nd aircraft VR.557, Fairey 3rd aircraft WE.488 (3-seater), Blackburn GR17/45 WB.797. Mamba: 829-835 Engines for 2nd Apollo. Aircraft 831 (785): Lancaster SW.342, Apollo GA IYN, Dakota KJ.839, Balliol VL.935. Mamba Mk.6 for Short SB.6 aircraft. 836 (790) Python: Crash landing at Farnborough. Cracked turbine disc. Cracking of combustion chamber vaporiser. Python aircraft: Wyvern VW.868, Wyvern VW.882, WYvern VW.885, Wyvern VZ.745. 842 (797) Rocket: Screamer rocket motor. Provision of aircraft for Screamer tests. new test house. Appendix 1: Sapphire Appendix 2: Python Appendix 3: Mamba Appendix 4: Double Mamba Appendix 5: Adder Appendix 6: Viper