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

Present: Mr RH Weir MoS; Mr WF Saxton Armstrong Siddeley Motors. Agenda: 3 18 (960) Sapphire Series 9 test position. 19 (961) Future programme. 20 (962) Series 8 25-hour endurance test at a turbine inlet temperature of 1250 degK. 21 (963) Future programme. 22 (964) Series 7 (a) 150-hour test on Victor type engine at 11,000 lbs thrust rating. (c)150-hour Javelin type test at 11,000 lb thrust. (d) 150-hour test to clear BEC supply of compressor blades and compressor discs with curvic coupling. 24 (966) Series 6: (a) Increased thrust creating of 8,500 lbs. (c) Javelin turbo-starter failures in service. (f) Hunter engine overhaul life. 26 (968) Seies 5 25-hour endurance test. 27 (970) General devlopment. (a) Titanium TI.155Ax. Flying test beds: 28 (971) AST Lancastrian VM.773 (2 Sa.6 outboard); 29 (972) Canberra WK.141 (twin Sa.7); 30) (973) Canberra VW.787 (twin Sa.6R); 31 (974) Hunter VW.889 (Sa.6); 32 (976) Hunter WP.113 (Sa.6); 33 (976) Hunter WP.114 (Sa.6); 34 (977) Javelin XA.557 (twin Sa.6); 35 (978) Ashton. Conversion by Napier has commenced. Prototype aircraft: 36 (979) Handley Page Victor WV.775 (4 Sa.6) 2nd aircraft; 37 (980) Avro Vulcan VX.770 (4 Sa.6); 38 (981) English Electric P.1 WG.760 (twin Sa.5); 39 (982) English Electric P.1 WG.763 (twin Sa.5) 2nd aircraft; 40. Javelin XA.650 (twin Sa.7). 4 Viper 41 (983) Running times to 4 October 1955. 42 (984) Test position. Viper 8. 44 Viper 5: (b) Viper 5 Provost overhaul life. 46 (986) Viper 3 engine (short life). Viper aircraft: 48 (988) VIper in tail of Mamba Lancaster SW.342 (Viper 5); 49 (989 Canberra WK.163 (two Avons) Viper 3 long life fuel system; 50 (990) Provost XD.674 (Viper 5); 51 (992) Folland Midge G/39/31 (Viper 5). Double Mamba 52 (993) Running times. 53 (994) Test position: AS.Ma.D.1. Production troubles: (a) Failure of 6th row compressor rotor blades. (c) Turbine failure. 54 (995) AS.Ma.D.3. Mamba aircraft: 56 (999) Fairey Gannet WN.340 (D.3); 57 (1) Blackburn GR.17/45 WB.797 (D.1); 58 (2) Fairey Gannet WN.395 (D.1); 59 Fairey Gannet WM.463 (D.1); 60 Provisioning of Fairey Gannet for D.8 engine at Armstrong Siddeley Motors. 6 Mamba (3) Running times to date. 62 (4) Test position; (a) Engine vibration. (g) Flight clearanceof engines in Seamew. (h) Lowther Hill. Aircraft: 63 (6) Dakota KJ.839 (2 Mamba 6); 64 (7) Short seamew Xa.209 (Mamba Mk.6); 65 (8) Short Seamew XA.213 (Mamba Mk.6). 7 Python 66 (9) Running times to date. 67 (10) Test position: (a) 150-hour modification approval test ( b) Turbo-starting. Aircraft: 68 (11) Wyvern WL.881. Rocket: 69 (12) Screamer rocket engine 1,115 runs completed to 10 October 1955. Making a total of 30 hours 48 minutes. (a ) to clear 2,000/4,000 lb for flight clearance. Bench test 2.5 hours. (b) To clear 2,000/8,000 lb for flight clearance. Rig testing gas generator 2 hours. 70 (13) Provision of meteor 8 for Screamer tests. All work has been stopped. 71 (14) Alternative oxidants. 72 30,000 lb HTP rocket for Avro Weapons Research Division. Engine research: 2-0 Aerodynamics (2-1)2-3 Compressors. 2-4 and 2-5 Engine intakes. Supersonic and propelling nozzles. 3-4 (c) Reheat enriched by oxygen. 3-6 Main combution chamber for turbo-roket engine. 4 Mechanical enineering: (4-2) Bearings