Related by context. All words. (Click for frequent words.) 59 microlight 59 Tiger Moth biplane 58 Grob #E light 58 Turbo Prop 58 Beechcraft #D 57 CH# Chinook 56 Stearman PT 56 Squirrel helicopter 56 Vans RV 56 microlite 55 microlights 55 performing aerobatic maneuvers 55 Cessna #SP 55 Twin Squirrel 54 F/A-# Hornet fighter 54 Bolkow 54 Beech #D 54 Piper Arrow 54 HH #C 54 aerobatic display 53 Fokker F# 53 RAF Harrier 53 Harrier GR9 53 twin propellor 53 Hercules C# 53 microlight aircraft 53 altitude supersonic jet 53 twin engined aircraft 53 Tornado F3 53 RAF Shawbury 53 Twin Comanche 53 Pilot ejects 53 Sikorsky S# 53 Agusta Bell 53 twin turbo prop 53 AS#L# 53 seater ATR 53 Canadair CT 53 Hawk Mk# 53 Embraer Brasilia 53 Fairchild Metroliner III 52 SB2C 52 gyroplanes 52 vintage biplane 52 RAF Coningsby 52 RAF Puma 52 RAF Barkston Heath 52 Diamond DA# 52 Dorniers 52 Piper Navajo Chieftain 52 Piper Navajo 52 twin engine 52 RAF St Athan 52 RJ# [002] 52 tailwheel 51 IAF Sukhoi 51 Tucano T1 51 RAF Henlow 51 RAF Hercules 51 T #C Talon 51 unairworthy 51 TOFTs 51 Beechcraft A# 51 Bombardier DHC 8 51 Tiger Moth 51 trainer AJT 51 RAF Cranwell 51 Kiran Mk II 51 A# tankbuster 51 Middle Wallop 51 Microlight 51 RAF Typhoon 51 Gliding Club 51 Fairchild Metroliner 51 Cessna Citation CJ4 51 checkride 51 A#E 51 T #C Turbomentor 50 Hawker Siddeley 50 RNAS Yeovilton 50 GR4 50 Stearman bi 50 RAAF Roulettes 50 Beachcraft 50 Grumman Albatross 50 CFB Moose Jaw 50 turbo prop plane 50 Fairchild turboprop 50 Schweizer #C 50 RAF Wyton 50 RAF Woodvale 50 AH 1W Cobra 50 C# Hercules 50 paramotor 50 Eurocopter Dauphin 50 Piper Warrior 50 RNZAF 50 Agusta A# 50 Cessna #s 50 Emergency Locator Transmitter 50 Base Woodbourne 50 Cessna Skyhawk 50 Scatsta 50 Hawk Mk 50 Cessna #L 50 seater Beechcraft 50 Netheravon 50 P3 Orions 50 Airbus A#B# 50 propeller plane 50 aborts takeoff 50 Piper Chieftain 50 Cessna Skylane 50 deHavilland Beaver 50 delta winged 50 wing monoplane 50 frontline Sukhoi 50 Socata TBM 50 Aerobatic 50 Fouga Magister 50 Citation CJ2 50 Garmin G# equipped 49 RMB Chivenor 49 F 5F 49 Vickers Viscount 49 twin engined jet 49 Beechjet 49 IAF MiG 49 AC #H 49 Aerobatics Team 49 ECFT 49 6A Texan 49 Dash 8s 49 #T Hercules 49 microlight pilot 49 aircraft 49 ATR turboprop 49 aicraft 49 Boeing Stearman 49 RAF Tornados 49 Freeds owned 49 Pilatus PC# 49 Wonderboom Airport 49 Yeovilton 49 RAF Leeming 49 aborts landing 49 Kolath Airlines LLC 49 F #CJ 49 Cessna Caravans 49 Eurocopter AS#B# 49 Grumman TBM Avenger 49 S #CBi 49 Chetak helicopters 49 RSAF 49 Tamboen promised 49 F/A-#D 49 Stearman biplanes 49 overshoots runway 49 RAF Hercules transport 49 Panavia Tornado 49 twin engined Cessna 49 Marine AV 8B 49 Capt. Uriah Orland 49 Pave Lows 49 AH #D Longbow Apache 48 RAF Tristar 48 Kiran MK 48 RAF Leconfield 48 F #D 48 Pilatus PC 48 Waco biplane 48 pilot ejects 48 Bell JetRanger 48 T #C Goshawk 48 Apache helicopter crashed 48 Piper PA# 48 Harrier GR7 48 passenger VTOL 48 System TCAS 48 Liberty XL2 48 Beechcraft Baron 48 Brett Hotchin 48 Bombardier Dash #-# 48 RAF Marham Norfolk 48 B#NG 48 RAF Odiham 48 GA8 48 RAF Chinook 48 Illyushin 48 Boeing #-#/# 48 multiengine 48 Old Buckenham airfield 48 Gloster Meteor 48 RF 4C 48 Roger Bousfield 48 bomb aimer 48 Tornado F3s 48 Grumman Mallard 48 engine turbo prop 48 paramedic Mickey Lippy 48 Curtiss Jenny 48 accidentally strafed 48 Flight Lieutenants 48 Ercoupe 48 Hawker Hurricane 48 AeroShell Aerobatic Team 48 De Havilland Twin Otter 48 Sikorsky UH 48 Jetstream aircraft 48 Supermarine Spitfire 48 Shark# 48 Puma helicopter 48 Cirrus SR 48 RF 4C reconnaissance 48 Gwalior airbase 48 Boire Field 48 EC# helicopter 48 RAF 48 MC #P 48 Extra #L 48 stick pusher demonstration 48 piston engined 48 SB2C Helldiver crashed 48 F #B STOVL 48 twin engined 48 RAF Tornado 48 Eurocopter Squirrel 48 chief Pedro Desuasido 48 Aero Commander 48 Cessna Citation CJ3 48 SAAF 48 Raytheon Hawker #XP 48 Crashed commuter 48 turbo prop planes 48 Sywell Aerodrome 48 RAAF Williamtown 48 UH 1H Huey 48 Aero Vodochody L 48 Citation XLS 48 turbofan powered 48 Beaufighter 48 Yakovlev Yak 48 AStar 48 Air Commodore Sarfraz 48 F/A-#C 48 RAF Wattisham 47 Cesna 47 Piper Seneca 47 de Havilland Beaver 47 KC #J tanker 47 CRASH SITE 47 Dragon Rapide 47 Cessna #R 47 Nimrod spy 47 MC #J 47 DeHavilland Beaver 47 RAF Nimrod spy 47 C #H Hercules 47 model rocketry 47 Twin Otter propeller 47 UH# Black Hawk 47 Chinook CH 47 Cirrus SR#s 47 Mobility Command 47 Gulfstream GV 47 seater Cessna 47 thundered overhead 47 Marine Corps F/A-# Hornet 47 CH #D 47 Bombardier Q# turboprop 47 cessna 47 F 4E 47 Stallion helicopter 47 BO# 47 Staggerwing 47 Med Evac 47 Aircrew 47 Air Refuelling 47 unclear Dubon 47 Kenfig Nature Reserve 47 selects Rockwell Collins 47 vintage warbirds 47 Apache gunship 47 AeroShell 47 VC# [003] 47 Dunsfold 47 P3 Orion 47 Skycatcher 47 OV #A 47 Pilatus PC-#/# 47 Aerobatic Team 47 Challenger CL 47 C #E Hercules 47 coaxial rotor 47 AV 8B 47 UH 1N Huey 47 blackhawk helicopter 47 AS#N 47 searchlights circled overhead 47 biplane 47 Pave Hawks 47 Avro RJ 47 Surya Kiran Aerobatics 47 F4 Phantom 47 Glass Cockpit 47 Nimrod MR2 47 RAF Nimrods 47 Skydive Elsinore 47 Duxford Cambridgeshire 47 Cessna Citation jet 47 Enstrom #B 47 BK# [003] 47 Cessna Citation Sovereign 47 Surya Kiran 47 FA# [001] 47 CHC Scotia 47 RAF Cosford 47 #A Globemaster III 47 Emirati cadet 47 C#J 47 WAAS LPV 47 RAF Nimrod 47 airworthiness certificates 47 PB4Y 47 F/A-#A 47 Grumman Goose 47 flight IY# 47 RAAF Amberley 47 Alouette III 47 UH 1N 46 incorrect airspeed 46 Surya Kirans 46 Biggin Hill airfield 46 MiG #N 46 Avro RJ# [002] 46 Air Force RSAF 46 VH #N 46 Röhl Ponto Schertz über 46 eject safely 46 Ysterplaat Air Force 46 6E Intruder 46 cadet squadron 46 Bell UH 1H 46 F 5E Tiger 46 seat Q# Bombardier 46 seater turboprop 46 F4U Corsair 46 Super Etendard 46 endurance remotely piloted 46 motorized gliders 46 glider 46 passenger Canadair Regional 46 supersonic jet trainer 46 AAIB 46 Remos GX 46 Mikoyan MiG 46 towing glider 46 airframe mechanic 46 RNLAF 46 Raytheon Beechcraft 46 TWA Constellation 46 Stationair 46 Apache AH 46 TrustPower TECT rescue 46 RAF Linton 46 Antonov AN# 46 Rolls Royce RB# engines 46 De Havilland 46 turbo prop airplane 46 Nieuport 46 Globemaster transport 46 Sukhoi SU 46 B #H Stratofortress 46 F/A-# jets 46 RAF Cranwell Lincolnshire 46 aerobatic flying 46 Team Guinot 46 Apache Helicopter 46 Weightless Wonder 46 Re engining 46 Cessna #C 46 AS#B# 46 clipped treetops 46 aircrafts 46 EA #G aircraft 46 RTAF 46 freefall parachute 46 wingwalking 46 P 3C patrol 46 SH #F helicopter 46 Boeing #SP 46 tail jutted 46 BAe #s 46 med evac 46 Champion Citabria 46 NOTE Expedia Expedia.com 46 RNAS Culdrose 46 Boscombe Down 46 F/A-#E 46 Bellanca Citabria Super Decathalon 46 customers individualized seatback 46 aeromedical 46 de Havilland Comet 46 Eurocopter AS# 46 STCs 46 French Rafale fighter 46 CitationJet 46 Blackhawk Helicopter 46 Lancair ES 46 Wattisham Airfield 46 Beechcraft BE# 46 Garmin G# integrated 46 Jumpmaster 46 Dishforth 46 parachuters 46 Globemaster III cargo 46 airbus A# 46 plane 46 AC #U 46 open cockpit biplanes 46 Tornado squadrons 46 Flying Fortress bomber 46 G# equipped 46 aircrew 46 RQ 4A Global 46 IAF chopper 46 Shadow UAS 46 Wedgetail AEW & 46 Jerviswood 46 Q# Bombardier 46 Zenair 46 Piper Aztec 46 piloting 46 SR# G3 45 CAE Simfinity 45 Iberworld 45 Grumman G# 45 collided midair 45 EH# [001] 45 aerobatic maneuver 45 heli tankers 45 RAF Benson 45 Osprey tiltrotor 45 Ultralight 45 Christopher Allarton 45 Wing Moose Jaw 45 deHavilland Beaver floatplane 45 helicopter 45 triplane 45 Cessna #S 45 UH #M Upgrade 45 single engined Cessna 45 AgustaWestland AW# helicopters 45 Tiger Moths 45 Skydive DeLand 45 Langar Airfield 45 Hang gliding 45 Piper Comanche 45 Terry Queijo 45 Continental Connection commuter 45 CRJ# NextGen regional [001] 45 gyro copter 45 Vulcan XH# 45 Eurocopter EC# 45 powerplant mechanic 45 Beechcraft #C 45 Tri Pacer 45 Grumman F6F Hellcat 45 Piaggio Avanti 45 RNZAF Base Ohakea 45 Bell #EP 45 RR# engine 45 Chinook Helicopter 45 CH# [001] 45 Pave Hawk 45 Cessna Citation Excel 45 Avro Vulcan XH# 45 RotorWay 45 Hawker #XP Citation 45 Osprey tiltrotor aircraft 45 Bruntingthorpe 45 Hood Aerodrome 45 Aerospatiale AS# 45 RAF Tornado GR4 45 Talon jet 45 helicoper 45 medi vac 45 Navy EA 6B 45 Bombardier Canadair CRJ 45 Troutville Va. helicopter 45 RIAT 45 AH 1Z Cobra 45 Seafire 45 near Roselawn Ind. 45 Learjet #A 45 CTLS 45 Pave Hawk helicopter 45 officer Anjali Gupta 45 F/A-#F 45 Neuera ™ 45 EastCare 45 Alenia Aermacchi M 45 RAF Cottesmore 45 Glasair 45 TCAS II 45 RAF Honington 45 inflatable pylons 45 F# fighter 45 C# Hercules transport 45 F/A-# jet 45 Piper Tomahawk 45 aerobatic squadron 45 F 5E 45 Surya Kiran aerobatics 45 seater Jetstream 45 Harrier jet 45 warbird 45 Aermacchi 45 Agni Air 45 Hornet fighter 45 seamanship navigation 45 Eurocopter EC 45 deHavilland 45 incorrect airspeed indications 45 RAF Waddington 45 tailgunner 45 sailplane 45 AS# B2 45 Skymaster 45 Piper Cub 45 Seething Airfield 45 Stearman biplane 45 Gyrocopter 45 DeHavilland Twin Otter 45 RAF Lyneham Wiltshire 45 flight JK# 45 Aerion supersonic 45 MEDEVAC 45 mishap injures 45 Specialized Undergraduate Pilot 45 Eurocopter EC# helicopter 45 F/A-#C Hornets 45 Flypast 45 Citation Sovereign 45 Private Pilot Licence 45 MiG #KUB 45 mistakenly strafed 45 FA/# 45 Freefall Adventures 45 unpiloted aircraft 45 twin engined plane 45 Ford Trimotor 45 Tupolev Tu #M 45 AS# B3 45 USAAF 45 maker Embraer EMBR3.SA 45 Piper Cub airplane 45 AH #D 45 CH #E Sea Stallion 45 glider pilots 45 MKI aircraft 45 pilot Wolfgang Absmeier 45 Ecureuil 45 flight ET# 45 E 8C 45 P.# Avanti II 45 Helios Prototype 45 Wetzel Day Goutiere 45 AV 8B Harrier 45 plane DeHavilland DHC 45 Romsey Close 45 Nairashvili 45 NASA Weightless Wonder 45 MiG# 45 A-#/# 45 Airbus A# aircrafts 45 F/A-#F Super Hornet 45 Sopwith Pup 45 Fadec 45 Lt. Paul Pardoel 45 Honeywell TFE# 45 Honeywell IntuVue 45 plane Cirrus SR# 45 N3N 45 De Havilland Beaver 45 de rostered 45 Twin Otters 45 St Mawgan 45 gyroplane 45 Wonderboom airport 45 Bayflite helicopter 44 Crop duster 44 turboprop airplane 44 Museum Cosford 44 strategic airlifters 44 planes 44 Lider Aviacao 44 Odiham 44 Simon Foddering 44 STOL 44 KC #R Stratotankers 44 King Air C#GTi 44 VMFA AW -# 44 Britten Norman 44 Red Arrows aerobatic 44 Yeovilton Somerset 44 Legend Cub 44 Vintage Aero 44 Navy MH #S 44 droned overhead 44 RQ 4A 44 Dornier 44 AH 1Z 44 pilot 44 RAF C# Hercules 44 refuel fighter jets 44 descend vertically 44 Nimrod reconnaissance aircraft 44 flight simulator 44 engine Cessnas 44 DA# NG 44 Yellow confetti rained 44 9 Reaper unmanned 44 AT6 44 Cessnas 44 supersonic jets 44 Raptor stealth 44 thrust vectoring 44 Aerospace Jetstream 44 Puma helicopters 44 Cessna #RG 44 Eshott 44 Garmin G# [002] 44 F/A-# Hornet jets 44 Vickers Vimy 44 Sosoliso Airlines 44 Training Devices FTDs 44 microlight plane 44 Thomas Fijalkovich 44 Eurocopters 44 Saab Gripen 44 Nimrod MR2 spy 44 Boeing #-# freighter 44 preflight inspection 44 Hornbill Skyways 44 MiG #SMT 44 EC# B4 44 winglet equipped 44 3K Orion 44 MH #S 44 waterbombing 44 Piper Cherokee Six 44 Aeronca 44 tandem rotor 44 Eurocopter AS 44 Huey Helicopter 44 feet agl 44 RAF Chinook helicopter 44 Qatar Emiri Air Force 44 Extra #S 44 routine sortie 44 Cobra helicopter gunship 44 Concorde supersonic 44 era UH 1H 44 ASTREA 44 Mitsubishi MRJ 44 approved NVG compatible 44 Beechcraft 44 B# NG 44 Boeing Dreamlifter 44 Sikorsky UH #M 44 sudden decompression 44 Avro RJ# [001] 44 F6F Hellcat 44 pilots 44 Turboprop 44 X #A WaveRider 44 A# jetliners 44 Oshkosh Wisc 44 ferry SpaceShipTwo 44 turbojet powered 44 Nimrod MR2 aircraft 44 GE# engine 44 Citation CJ2 + 44 CFM# powered 44 UH #M 44 Instrument Landing System 44 PW# engine [002] 44 NVG compatible 44 Garmin G# [001] 44 Rev. Zenon Sikorski 44 Air Missile AMRAAM 44 tanks AH 1S 44 hypersonic scramjet 44 HH 1N Huey 44 Joint Helmet Mounted 44 Avro Vulcan 44 turboprop 44 AP 3C Orion 44 turboprop airliner 44 Paragliders 44 Convair 44 Eurojet EJ# 44 Sikorksy 44 Cessna Citations 44 Tornado GR4 44 Sea Harrier 44 Culdrose 44 Harrier squadrons 44 Piper Cheyenne 44 Dash #-# 44 Goshawk jet 44 Navy F/A-# Hornet 44 Ilyushin IL 44 supersonic aircraft 44 F/A-# Hornet fighter jets 44 twin engined turboprop 44 Aerobatics 44 GR9 44 Kindlemann 44 Air Force RMAF 44 Skymaster transport 44 P# Avanti 44 Aeroclub 44 MH #S Seahawk 44 Skydive Sebastian 44 Old Buckenham Airfield 44 Longleaf Legacy 44 AH #D Longbow 44 HC #J 44 MySims SkyHeroes 44 Biggin Hill 44 Stearmans 44 MH #G 44 Airblue flight 44 Quiet Birdmen 44 CAE Simfinity TM 44 Marine Attack Squadron 44 powered paraglider 44 N#P 44 engine Beechcraft 44 nosewheel steering 44 OPEVAL 44 Tutor jets 44 Boeing# 43 #rd Fighter Wing [001] 43 vertical takeoffs 43 American Eurocopter EC# 43 Bishop Ullathorne 43 autogyro 43 MC #E 43 AV 8B Harrier jets 43 #NG 43 RAF Scampton 43 RAF Boulmer 43 Aircrafts 43 Pave Low 43 warplane crashed 43 LHTEC 43 Avro Lancaster 43 remotely piloted craft 43 Serchak 43 Flt Lt Sale 43 provided JSF RichFaces 43 de Havilland Mosquito 43 aerobatic 43 CH #D Chinook helicopter 43 suit waterproof coveralls 43 Air Force Lakenheath 43 modern ATR #-# 43 Black Hawk Helicopter 43 EC#B 43 carrying hajj pilgrims 43 Jet Trainer 43 CH #F Chinook 43 Bagotville Que 43 Bombardier Dash 43 Elstree Aerodrome 43 gyrocopter 43 turboprop airplanes 43 Global XRS 43 #st Fighter Squadron [002] 43 Cessna Citation Columbus 43 tandem skydive 43 Lidle Cirrus SR# 43 TAAG Angola 43 Sikorsky Black Hawk 43 JASDF 43 Saab Gripen NG 43 Starfighters 43 Hellcat fighter 43 Dave Bijur 43 Mooney M#C 43 NASA Ikhana 43 CH #Es 43 CJ3 43 avionics technician 43 F/A-#C Hornet 43 Avidyne Entegra 43 relaxed el Amruni 43 Air Moorea 43 Omniflight Helicopters 43 Lancair Legacy 43 Pavehawk helicopter 43 Canadair CL 43 Skybolt 43 Miss Veedol 43 turboprop ATR 43 OH #D 43 aerial gunners 43 turbojets 43 F #D Tomcat 43 Super Cub 43 Adour engine 43 Patrouille de France 43 spokesman Bambang Sulistyo 43 Wingsuit 43 Operations IS BAO 43 jumpseat 43 Piper Cherokee 43 Flying Boxcar 43 Darcy Hennemann 43 Bullets pinged 43 Citation CJ1 + 43 Sky MAXX 43 #th Airlift Squadron [002] 43 AH 1W Super 43 Sukhoi SU #MKI 43 Beech Bonanza 43 RAF Brize Norton 43 Dhruvs 43 Gama Aviation 43 aeromodelling 43 Captain Peter Burkill 43 Silver Dart 43 spokeswoman MaryAnne Greczyn 43 unpowered glide 43 Isham Cory 43 MQ 1C 43 .# caliber semiautomatic pistols 43 sailplanes 43 DeHavilland 43 MARCH FIELD AIR MUSEUM 43 N#A [002] 43 GR7 43 AH 1W 43 Oshkosh AirVenture 43 RAAF Base Williamtown 43 open cockpit biplane 43 refuellers 43 NATO AWACS 43 turbine airfoils 43 XV# [001] 43 landed uneventfully 43 Citation CJ1 43 MH #S Knighthawk 43 Skyraider 43 Shearwater NS 43 aerobatic pilot 43 aerobatic stunts 43 Hang glider 43 twin turboprop 43 KC #R 43 Stephen Hilder 43 senior aircraftsman 43 Mi 8T 43 Air Force ROKAF 43 jet 43 Cessna Conquest 43 CJ2 + 43 Kildron 43 monoplanes 43 son Rex Damschroder 43 3B Viking 43 Embraer E#s 43 turboshaft engine 43 RAF Hercules aircraft 43 Nimrod XV# 43 UND Aerospace 43 HC #P 43 copilots 43 JHMCS 43 simulates weightlessness 43 Beechcraft Bonanza 43 ALH Dhruv 43 Boeing #NG 43 B 1B Lancer 43 tandem parachute 43 Beechjet #A 43 F6F 43 Lieutenant Colonel Restituto Padilla 43 #/#s [004] 43 ParcAberporth 43 AH #D Apache 43 Nimrod MRA4 43 Abhishek Kaushik 43 Carrier Variant 43 Cougar Helicopter 43 RAAF VIP 43 NENE Valley 43 MedEvac 43 seater Embraer 43 twin propeller 43 Boeing Stearman biplane 43 Pel Air 43 ROKAF 43 Scampton 43 Airshows 43 HyFly 43 pitot problems 43 Parachute Display 43 captain Chesley Sully 43 Reduced Gravity Student 43 CT4 43 explosion suppressant foam 43 Navajo Chieftain 43 C#B [001] 43 King Air B#GT 43 Theda Star 43 aerobatic displays 43 Gyroplane 43 A#B# 43 UH 1H 43 tail dragger 43 Coombe Abbey 43 roadable aircraft 43 Hercules transports 43 Focke Wulf 43 takeoffs landings 43 UH #L 43 Globemaster III aircraft 43 Adour engines 43 mother Paola Casali 43 supersonic fighter jets 43 medevac missions 43 gliders 43 PBY Catalina 43 Wattisham 43 HELICOPTER 43 turbofan jet 43 Dornier #s 43 airframe parachute 43 AS# NP 43 Aerostar #P 43 Model Airplane 43 reconnaissance sorties 43 F/A-#D Hornet 43 twin turbo propeller 43 #D Mustang 43 Bassingbourn Barracks 43 twin turbofan 43 MASWings 42 avionic systems 42 seater Piper 42 RNZAF Orion 42 EagleMed helicopter 42 F/A-#D Hornet jet 42 North Weald airfield 42 Systems J UCAS 42 Marham 42 Hawk AJT 42 Capt Bingley 42 Kamov Ka 42 MRA4 42 F #Cs 42 RMAF 42 Inc. www.gatorz.com designs 42 Federation Aeronautique Internationale 42 Procedures Trainer 42 RAF Coningsby Lincolnshire 42 Medevacs 42 AirShow 42 Assaf Ramon 42 #N chopper 42 twin engine Beachcraft 42 tactical UAVs 42 Duxford 42 Flying Fortress Nine 42 Sikorsky MH 42 B# Flying Fortress 42 Bi Plane 42 CH #D Sea 42 Learjet #XR 42 Experimental Lancair IV 42 airplanes 42 screeched overhead 42 Rocket Racer 42 Canadair jet 42 UH 1N Hueys 42 KLM Cityhopper 42 Mi# [002] 42 #st Fighter Squadron [001] 42 CFB Comox 42 Extended Range aircraft 42 Groundskeepers cleared 42 airworthiness certification 42 NH# helicopter 42 ThedaStar 42 Mirage #D