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

Present Capt Luby MoS; Mr Saxton, Mr Slatter Armstrong Siddeley Motors; Air Marshall Sir JN Bootham CS (A) to name but 3 of the 43 at the meeting. Agenda: Sapphire |Sa.4 and Handley Page. Test position. B35/46 flight clearance test. Future programme. Civil clearance for Sa.3. 761 Sapphire flying test beds: (717) Canberra WD.933; 762 (718) Canberra 2nd aircraft. 763 (719) Sapphire Prototype aircraft: Gloster F4/48 (twin) 1st and 2nd aircraft. 764 (721) Handley Page (4 engines); 766 (722) Hawker F3/48; 767 (723) English Electric F23/48 (twin). Adder 768 (724) Running times to date 1648 hours. 771 (a) 15 engines delivered to Australia. (b) Adder in tail of Lancaster. (c)Vickers C.9 (Research aircraft). Viper 772 (727) Running times to date 262 hours. Viper future test programme. 775 General development: (a) Bristol application for Viper. (b) Viper engines for Australia. Double Mamba: 779 (733) In Fairey GR17/45 VR.546. 780 (734) Fairey 2nd aircraft VR.557. 782 (736) Fairey 3rd aircraft WE.488 (3-seater). 782 (736) Blackburn GR17/45 WB.797. Mamba aircraft : 785 (739) In Lancaster SW.342. 786 (740) Apollo GA.IYN. 787 (741) Dakota KJ.839. 788 Balliol VL.935. 789 (742) General development: Mamba Mk.6 engines in Short Bros SB.6 aircraft. 790 Python running times to date10,529 hours. 791 (744) Test position (a) Twin disc turbine. ython test position at Bitteswell. Production engine P.162 from Boscombe. Engine P.116 from Bitteswell. 792 (745) Wyvern VP.109; Wyvern VW.868; Wyvern VW.882; Wyvern VW.885; Wyvern VZ.746. Rocket: 797 (749) Screamer rocket motor. 798 (750) Provision of aircraft for Screamer tests. 799 New test house and plant. Appendix 1: Sapphire 95 AS.Sa.3 to 412 AS.Sa.4. Appendix 2: Python 101 ASP.1 to 134 ASP.3. Appendix 3: Mamba: 101 AS.M.1to 174 AS.M.3. Appendix 4: Double Mamba: 201 AS.Ma.D.1 to 214 AS.Ma.D.1. Appendix 5: Adder 1 ASA.1 to 25 ASA.1. Appendix 4: Viper 1 ASV.1 to 10 ASV.1.