A 'benchmark' of test data for hover airloads is extablished

A patent for electrical aircraft propulsion is filed

A theory for the prediction of dynamic inflow is published

AeroVelo wins the AHS International Human Powered Helicopter competition

Arthur Young files his patent for the stabilizer bar

Beam theory for flexible rotor blades is developed

CFD becomes a viable tool to predict rotor airloads

CFD/CSD Loose Coupling is developed

Cierva-Weir 'autodynamic' rotor system demonstrated

Definitive test data for rotor flapping at low advance ratio obtained

First 100% conversion from rotor-borne to wing-borne flight by a tilting rotor aircraft (Bell XV-3 Ship 2)

First all metal construction helicopter flies (Kellett XR-10)

First controlled flight by an Autogiro (Cierva C.4)

First conversion from a stationary wing to a rotating wing in flight (Herrick HV-2A)

First flight of a 'Direct Control' Autogiro (modified Cierva C.19 Mk V)

First flight of a fenestron equipped helicopter (on an SA.340)

First flight of a gas turbine powered helicopter (Sud-Ouest SO.1120 Ariel III)

First flight of a helicopter with articulated/flapping blades (Breguet-Dorand Gyroplane Laboratoire)

First flight of a lateral tandem rotor configuration (Focke-Wulf Fw 61)

First flight of a manned, electric, multi-rotor helicopter (e-Volo VC1)

First flight of a NOTAR equipped helicopter

First flight of a rotorcraft with an articulated/flapping blade (Cierva C.4)

First flight of a rotorcraft with lead-lag hinges (modified Cierva C.7)

First flight of a twin turbine powered helicopter (modified Kaman HTK-1)

First flight of an autogiro/gyroplane with a pusher prop (Buhl A-1)

First flight of largest diameter main rotor ever flown (Hughes XH-17)

First flight of the first fully fly-by-wire (FBW) helicopter (Boeing-Vertol Model 347)

First flight of the PV Forum PV-2

First flight of the world's first tip jet powered helicopter (DWNF 342 V1)

First fully remote controlled helicopter flown (Kaman HTK-1K)

First helicopter to fly with a gas turbine powered transmission (Kaman K-225 modification)

First in-flight test of a ballistic parachute for a helicopter (Curti Zefhir)

First in-flight test of a rescue hoist on a helicopter (Sikorsky HNS-1 Hoverfly)

First in-flight use of Boundary Layer Control (BLC) on a helicopter

First note on helicopter technology issued by NACA

First patent for the use of elastomeric bearings in a rotor head issued

First practical use of cyclic pitch (Hafner A.R.III)

First reported flight of a coaxial rotor helicopter

First tandem rotor helicopter flight (Cornu 1907 machine)

First vertical flight of a human carrying solar-powered vehicle (Gamera-S)

First wind tunnel test of a full scale rotor (PCA-2)

Glauert publishes his seminal paper on the theory of the autogyro

NACA issues initial report on the analysis of ground resonance

Test evidence for the existence of a rotor aerodynamic state is discovered

The application of unsteady aerodynamic theory to rotor blades is published

The first comprehensive analysis code (C81) is developed

The first report is issued that explains the rotor wake geometry in hover

The first work on the calculation of rotor airloads in forward flight is published

The initial report on the UH-60A rotor airloads flight test program is published

Absolute altitude record for rotorcraft (SA.315 Lama)

Absolute World Speed Record for helicopters achieved (modified Westland Lynx AH.1 'G-LYNX')

Altitude record for autogyro set (Magni M16)

Bell XV-15 takes a record for speed over a recognized course

Fairey Gyrodyne/FB-1 establishes a world speed record for rotorcraft

Fairey Rotodyne sets a speed record around a closed course

Fastest speed around the world, eastbound, by a piston engine rotorcraft (Robinson R44 Astro)

Female duration record for human powered helicopter (HPH) flight established (Atlas HPH)

First helicopter world record recognized by an official agency (Oemichen No. 2 machine)

First human powered helicopter record set (Gamera I)

First recorded world altitude record for an autogyro set (Pitcairn PCA-2)

Focke Fw 61 completes breaking all existing helicopter world records

Highest altitude in level flight for a helicopter (Sikorsky S-64F/CH-54B)

Indian HAL Cheetal sets altitude landing record

Kaman HH-43B sets world altitude record (Class E.1 with 1000 kg)

Kaman HH-43B sets world altitude record (Class E.1.d)

Kaman HH-43B sets world time-to-climb records

Mil Mi-26 establishes payload/altitude record

Record for highest landing and take-off altitude established (Aérospatiale AS350 B3)

Record for maximum distance without landing achieved (Hughes YOH-6A)

Robinson R66 Turbines complete around-the-world flights

Russian Mil Mi-38 sets altitude record at 14th World Helicopter Championship

The Bell XV-15 captures five official FAI records

The D'Ascanio D'AT3 Helicopter breaks a number of records

World records set by Sikorsky S-52-1 (modified)

World's altitude record by Sikorsky S-59 (1954)

World's speed record by Sikorsky S-59 (1954)

'First flight' of the Harbin Z-5 with all metal blade rotor

'Second first flight' of the Harbin Z-5

A President of the USA flies in a helicopter (Bell H-13J) for the first time

A Robinson R44 becomes the first piston engined helicopter to land at the North Pole

A Sikorsky HH-52A rescues 22 people from the Burmah Agate maritime disaster

Bell 533 HPH compound/hybrid helicopter achieves 316 mph (275 kts) in level flight

Bell XV-15 completes its last research flight

Boeing A160T UAS sets an unrefueled endurance record

Canadair CL-84 completes its first transition

CarterCopter CCTD becomes first rotorcraft to exceed μ=1

Col. Frank Gregory performs first shipborne trials with a Vought-Sikorsky XR-4

Completion of the first solo helicopter circumnavigation around the world

Demonstration of the Vought-Sikorsky XR-4 to the US military and Government

Enstrom TH180 first flight

Enstrom's 2nd TH180 flies

Fatal crash of Harbin Z-6

First aerial rescue using a rescue hoist (Sikorsky YR-5A)

First amphibious landing by a helicopter (Vought-Sikorsky VS-300 2nd configuration))

First around the world helicopter flight completed (Bell 206L-1 LongRanger II)

First autorotational landing by a helicopter (Focke-Wulf Fw 61)

First combat rescue by a rotorcraft (Sikorsky YR-4B)

First complete transition by a tiltwing/tiltprop (Vertol VZ-2)

First complete VTOL transition by a fixed wing aircraft (Convair XFY-1)

First controlled VTOL flight (Pescara Helicopter 1S)

First crossing of the English Channel by a rotorcraft (Cierva C.8L-II)

First fight of Sikorsky S-76D

First flight and Production of Z-9W (2nd Prototype), the first Chinese ATGM helicopter

First flight of a Jet VTOL vehicle (Rolls-Royce TMR)

First flight of a manned, electric helicopter (Solution F machine)

First flight of a practical, controllable helicopter (Focke-Wulf Fw 61)

First flight of a rotary wing aircraft in the USA (Cierva C.8W)

First flight of a Sikorsky helicopter (Sikorsky VS-300 - 1st configuration)

First flight of a teetering main rotor (Bell Model 30)

First flight of a tilting rotor aircraft (Transcendental Model 1-G)

First flight of a twin engined helicopter (McDonnell XHJD-1 Whirlaway)

First flight of a vectored thrust VTOL aircraft (Bell X-14)

First flight of a wingless gyroplane in the USA (Wilford Gyroplane No. 3)

First flight of Adams-Wilson Model 101 Hobbycopter

First flight of AgustaWestland AW101-612 for Norwegian Air Force

First flight of an Agusta built helicopter (Agusta-Bell 47G)

First flight of an Enstrom helicopter, the F-27

First flight of Avicopter's AC311 light utility helicopter

First flight of Bell 505 Jet Ranger X

First flight of Bell Aerosystems X-22A Quad Tilt-Duct

First flight of Boeing YUH-61A (UTTAS competitor)

First flight of Brantly B-2

First flight of Changhe Z-8 heavy helicopter

First flight of Changhe Z-8F

First flight of Dassault Balzac V

First flight of Enstrom 280FX Shark

First flight of Enstrom 280L Hawk

First flight of Enstrom F-28 prototype

First flight of Enstrom F-28F Falcon

First flight of Enstrom Model 480

First flight of first indigenous Ukrainian helicopter (KB Vertical KT-112)

First flight of H425 of the Harbin Z-9 Family

First flight of HAL Chetan

First flight of HAL Dhruv Prototype PT2

First flight of HAL LCH

First flight of Harbin Model 701 light helicopter

First flight of Harbin Z-5, the Chinese 1st generation helicopter

First flight of Harbin Z-6 helicopter

First flight of Harbin Z-9W attack helicopter prototype

First flight of Indian Army's HAL Dhruv Prototype PT3

First flight of Indian Navy's HAL Dhruv Prototype PT4

First flight of Kaman HTK-1

First flight of Kaman's first helicopter (Kaman K-125A)

First flight of Kamov Ka-126

First flight of Kamov Ka-15

First flight of Kamov Ka-15M

First flight of Kamov Ka-18

First flight of Kamov Ka-25

First flight of Kamov Ka-25K

First flight of Kamov Ka-25PS

First flight of Kamov Ka-27

First flight of Kamov Ka-28

First flight of Kamov Ka-32A

First flight of Kamov Ka-32K

First flight of Kamov Ka-32T

First flight of Kamov Ka-50Sh Shar (Sphere)

First flight of Kamov's firefighting Ka-32A1

First flight of Kamov's helicopter, the Ka-8

First flight of Kamov's police helicopter Ka-32A2

First flight of Landgraf H-2

First flight of LTV XC-142A tilt wing/deflected slipstream VTOL aircraft

First flight of Mil Mi-10 prototype

First flight of Mil Mi-24VM

First flight of Omega BS-12D-1

First flight of Russia's Mil Mi-28N strike helicopter

First flight of Russia's Mil Mi-34S light helicopter

First flight of Russian Helicopters' Kazan Ansat multipurpose helicopter

First flight of Russian Kamov Ka-226 'Sergei'

First flight of Russian Kamov Ka-29

First flight of Russian Kamov Ka-31, Early-Warning Radar helicopter

First flight of Russian Kamov Ka-32 medium multipurpose helicopter

First flight of Russian Mi-38, fourth prototype (OP-4)

First flight of Russian Mi-38, second prototype (OP-2)

First flight of Russian Mil Mi-34

First flight of Russian Mil Mi-38, third prototype (OP-3)

First flight of Russian Mil Mi-8MT

First flight of Seibel S-3

First flight of Sikorsky S-59

First flight of Sikorsky S-61L

First flight of Sikorsky S-97 Raider

First flight of SNCASO SO-1220

First flight of Sznycer-Gottlieb SG-VID Grey Gull

First flight of the Aerospatiale SA.365 Twin Dauphin

First flight of the Agusta A.129 Mangusta (Mongoose)

First flight of the Agusta A101-G

First flight of the Agusta-Bell AB139

First flight of the AgustaWestland AW189

First flight of the Airbus Helicopters H160

First flight of the Asboth AH4

First flight of the Atlas Aircraft Rooivalk

First flight of the Avicopter AC311A

First flight of the Avicopter AC313

First flight of the Avicopter AC352

First flight of the AW101 Merlin HC.4

First flight of the AW109 Trekker

First flight of the A³ Vahana eVTOL tiltwing

First flight of the BA609 tilt rotor

First flight of the Bell 206A JetRanger

First flight of the Bell 206B-3

First flight of the Bell 206L LongRanger

First flight of the Bell 212

First flight of the Bell 214ST

First flight of the Bell 222

First flight of the Bell 230

First flight of the Bell 400

First flight of the Bell 407

First flight of the Bell 427

First flight of the Bell 429

First flight of the Bell 430

First flight of the Bell 525 Relentless

First flight of the Bell 65 ATV

First flight of the Bell AH-1/Model 209

First flight of the Bell AH-1T Sea Cobra

First flight of the Bell AH-1T+ SuperCobra

First flight of the Bell AH-1Z SuperCobra/Viper

First flight of the Bell CH-146

First flight of the Bell H-13J

First flight of the Bell Helicopter YOH-4A (LOH competitor)

First flight of the Bell HUL-1M

First flight of the Bell Model 30

First flight of the Bell Model 47B3

First flight of the Bell Model 533 compound/hybrid helicopter

First flight of the Bell OH-13 Sioux

First flight of the Bell OH-58D Kiowa Warrior

First flight of the Bell V-280 Valor

First flight of the Bell XHSL-1

First flight of the Bell XV-3 tilt rotor (XV-3 Ship 1)

First flight of the Bell YAH-63 (AAH competitor)

First flight of the Bell-Boeing V-22A

First flight of the Bendix Model K

First flight of the Boeing AH-64E Apache for the Indian Air Force

First flight of the Boeing CH-47F(I) Chinook for the Indian Air Force

First flight of the Boeing Model 360

First flight of the Boeing PAV

First flight of the Boeing Vertol Model 179

First flight of the Boeing-Sikorsky RAH-66 Comanche (YRAH-66)

First flight of the Bölkow Bo 103, 1 blade main rotor helicopter

First flight of the Bölkow Bo 105

First flight of the Bölkow Bo 46 V1

First flight of the Bristol 171 Mk.1

First flight of the Bristol Type 173 Mk. 1

First flight of the Bristol Type 192 (Belvedere) prototype

First flight of the CarterCopter

First flight of the Cessna CH-1 Skyhook

First flight of the CH-47F

First flight of the Changhe WZ-10 attack helicopter

First flight of the Cierva C.30

First flight of the Cierva C.6 series Autogiro

First flight of the Cierva W.11 Air Horse

First flight of the CL-84 Dynavert tilt-wing

First flight of the de Bothezat 1922 helicopter

First flight of the Doak 16/VZ-4

First flight of the Dornier Aerodyne E1 UAV

First flight of the e-volo VC200 Volocopter

First flight of the Eurocopter EC175

First flight of the Eurocopter EC665 Tiger

First flight of the Fa 223

First flight of the Fairey Rotodyne

First flight of the Fairey Ultra-Light helicopter

First flight of the Fiat Model 7002

First flight of the first British compound helicopter (Fairey Gyrodyne/FB-1)

First flight of the first Chinese tandem helicopter

First flight of the first compound helicopter (Flettner Fl 185)

First flight of the first helicopter of indigenous Chinese design (CJC-3)

First flight of the first indigenous Japanese helicopter (Kawasaki XOH-1/OH-X)

First flight of the first indigenous Polish helicopter (GIL BŻ-1/SP-GIL)

First flight of the first locally assembled Harbin Z-9

First flight of the first prototype (EDM-1) for the CH-53K Type series

First flight of the first prototype (PT-1) of the HAL LUH Type series

First flight of the first prototype of the Turkish Aerospace T625 Type series

First flight of the first successful tilt wing aircraft (Vertol VZ-2)

First flight of the Florine No. 2 tandem helicopter

First flight of the Gyrodyne GCA-2A (first compound helicopter in USA)

First flight of the Gyrodyne Model 2C

First flight of the HAL Dhruv

First flight of the Harbin Z-19E

First flight of the Harbin Z-9A-100

First flight of the Hawker AV-8A Harrier

First flight of the Hawker-Siddeley Sea Harrier FRS.1

First flight of the Herrick HV-1 Vertaplane

First flight of the Hiller Model 1031 Flying Platform

First flight of the Hiller OH-23 Raven

First flight of the Hiller X-18

First flight of the Hiller YOH-5A (LOH competitor)

First flight of the Hindustan Aeronautics Limited (HAL) Cheetah

First flight of the Hughes 300C

First flight of the Hughes 369E

First flight of the Hughes Model 369/YOH-6A (LOH competitor)

First flight of the Hughes TH-55A Osage

First flight of the Hughes XV-9A

First flight of the Hughes YAH-64 (AAH competitor)

First flight of the ICH-47F

First flight of the KAI KUH-1 Surion, first indiginous Korean helicopter

First flight of the KAI MUH-1 Surion

First flight of the Kaman HH-43B

First flight of the Kaman HU2K-1

First flight of the Kaman SAVER

First flight of the Kaman XHOK-1

First flight of the Kamov Ka-10

First flight of the Kamov Ka-22 Vintokryl

First flight of the Kamov Ka-22M

First flight of the Kamov Ka-52 Alligator

First flight of the Kellett XR-8 synchropter

First flight of the largest helicopter ever flown (Mil V-12)

First flight of the Leonardo AW189K

First flight of the Lockheed AH-56A Cheyenne

First flight of the Lockheed CL-475

First flight of the Lockheed Martin F-35B Lightning II

First flight of the Lockheed Model 286

First flight of the Lockheed XH-51A

First flight of the Lockheed XH-51A Compound

First flight of the Marenco SKYe SH09

First flight of the Matra-Cantinieau MC-101

First flight of the MBB/BK 117 C2

First flight of the McDonnell Douglas YAV-8B

First flight of the Mil Mi-24LL flying laboratory

First flight of the Mil Mi-26

First flight of the Mil Mi-2MSB

First flight of the NASA/ARMY RSRA in the fixed wing configuration

First flight of the NASA/ARMY RSRA/S-72 in the full compound configuration

First flight of the NASA/ARMY RSRA/S-72 in the pure helicopter configuration

First flight of the NASA/Army/Bell XV-15 TRRA tilt rotor

First flight of the NH Industries NH90

First flight of the NH90 Sea Lion

First flight of the NHI H-3 Kolibri

First flight of the NUAA Yan-An 2 Y-2B

First flight of the Oemichen Hélicoptère No. 2

First flight of the P-V Engineering Forum XHRP-1

First flight of the P-V Engineering Forum XHRP-X (first prototype of the Piasecki HRP-1 Type series)

First flight of the Piasecki 16H-1 Pathfinder

First flight of the Piasecki 16H-1A Pathfinder II

First flight of the Piasecki H-25A Army Mule

First flight of the Piasecki HRP-1

First flight of the Piasecki PA-4 Sea Bat

First flight of the Piasecki PA-59N SeaGeep

First flight of the Piasecki VZ-8P (B) AirGeep II

First flight of the Piasecki VZ-8P AirGeep I

First flight of the Piasecki/vertol CH-21C Shawnee

First flight of the Pitcairn PA-19 Cabin Autogiro

First flight of the PKZ 2 unmanned/Tethered Observation Helicopter

First flight of the Platt-LePage XR-1

First flight of the Platt-LePage XR-1A

First flight of the production AH-64A Apache

First flight of the production Boeing Vertol BV-107-II

First flight of the production McDonnell Douglas AV-8B Harrier II

First flight of the production version of the Bell Model 47/YR-13

First flight of the prototype (OP-1) of the Mil Mi-38 Type series

First flight of the prototype (PP1) of the EH Industries EH101 Type Series

First flight of the prototype (SA.3210) of the Sud-Aviation Super Frelon Type series

First flight of the prototype (V-8 ) of the Mil Mi-8 Type series

First flight of the prototype (V-80) of the Kamov Ka-50 Type series

First flight of the prototype (XH-40) of the Bell UH-1 Type series

First flight of the prototype (XHR2S-1) of the S-56/H-37 Type series

First flight of the prototype (XHSS-2) of the Sikorsky S-61/H-3 Type series

First flight of the prototype (XR-4) of the Vought-Sikorsky S-47/R-4 type series

First flight of the prototype (XR-5) of the Sikorsky S-48/R-5 Type series

First flight of the prototype (XR-6) of the Sikorsky R-6 Type series

First flight of the prototype (YCH-53A) of the S-65/H-53 Type series

First flight of the prototype (YCH-53E) of Sikorsky S-80/H-53E Type series

First flight of the prototype (YH-19) of the Sikorsky S-55/H-19 type series

First flight of the prototype (YHC-1A) of the Vertol CH-46 Type series

First flight of the prototype (YHC-1B) of the CH-47 Type series

First flight of the prototype (YUH-60A Black Hawk) of the Sikorsky H-60 Type series (and UTTAS competitor)

First flight of the prototype Bell Model 47

First flight of the prototype of the Agusta A109 Type series

First flight of the prototype of the AgustaWestland AW169 Type series

First flight of the prototype of the Doman LZ-5/YH-31

First flight of the prototype of the Kaman SH-2D Seasprite LAMPS Type series helicopter

First flight of the prototype of the Mil Mi-10K flying crane Type series

First flight of the prototype of the Mil Mi-14 Type series

First flight of the prototype of the Mil Mi-2 Type series

First flight of the prototype of the Mil Mi-24 Type series

First flight of the prototype of the Mil Mi-28 Type series helicopter

First flight of the prototype of the Mil Mi-4 Type series

First flight of the prototype of the Mil Mi-6 Type series

First flight of the prototype of the Sikorsky S-51 Type series

First flight of the prototype of the Sikorsky S-76A Type series

First flight of the PZL-Świdnik W-3 Sokól

First flight of the Robinson R22

First flight of the Robinson R44 prototype

First flight of the Robinson R66

First flight of the Russian multipurpose Army helicopter, Ka-60 Kasatka

First flight of the Ryan 92/VZ-3 Vertiplane

FIrst flight of the Ryan XV-5B Vertifan

First flight of the S-62 prototype

First flight of the Saunders-Roe P.531

First flight of the second prototype (PT-2) of the HAL LUH Type series

First flight of the second Sikorsky S-69/XH-59A ABC demonstrator

First flight of the Sikorksy S-69/XH-59A ABC demonstrator

First flight of the Sikorsky CH-148 Cyclone

First flight of the Sikorsky CH-19D Chickasaw

First flight of the Sikorsky CH-54B Tarhe

First flight of the Sikorsky HH-60J Jayhawk

First flight of the Sikorsky HH-60W

First flight of the Sikorsky S-52

First flight of the Sikorsky S-58/H-34 Type

First flight of the Sikorsky S-60 Crane

First flight of the Sikorsky S-61

First flight of the Sikorsky S-64A Skycrane

First flight of the Sikorsky S-67 Blackhawk

First flight of the Sikorsky S-92

First flight of the Sikorsky S-92F

First flight of the Sikorsky U-60M Black Hawk

First flight of the Sikorsky UH-60V

First flight of the Sikorsky VH-92A

First flight of the Sikorsky VS-300 (2nd configuration)

First flight of the Sikorsky VS-300A (4th and final configuration)

First flight of the Sikorsky X2 coaxial compound technology demonstrator

First flight of the Sikorsky-Boeing SB>1 Defiant

First flight of the Skeeter Type series aircraft (W.14 Skeeter I)

First flight of the SNCASE SE.3120 Alouette I

First flight of the SNCASE SE.3130 Alouette II

First flight of the SNECMA C450 Coléoptère

First flight of the SO.1221 Djinn prototype

First flight of the Softex VV-2

First flight of the Sud Aviation SA.330E/Puma HC.1

First flight of the Sud-Aviation SA.316 Alouette (Lark) III Type series (SE.3160)

First flight of the Sud-Aviation SA.3200 Frelon

FIrst flight of the Sud-Aviation SA.321F

First flight of the Sud-Aviation SA.340

First flight of the Sud-Aviation SA.360 Dauphin

First flight of the Sud-Est S.E.3000 lateral twin helicopter

First flight of the Sud-Est S.E.3101

First flight of the Sud-Ouest SO.1110

First flight of the Sud-Ouest SO.1310 “Farfadet” (Elf) Compound Gyrodyne

First flight of the Vertol Model 107 (V-107)

First flight of the VFW H2

First flight of the VFW H3

First flight of the Von Baumhauer Helicopter

First flight of the Westland CL.20 autogiro/gyroplane

First flight of the Westland Westminster

First flight of the Westland WG.13 Lynx helicopter

First flight of the Westland WS-51 Series 2 Widgeon

First flight of the winged Boeing-Vertol Model 347

First flight of the Workhorse SureFly electric helicopter

First flight of the world's first production helicopter (Flettner Fl 282 Kolibri)

First flight of the world's first truly amphibious helicopter (Sikorsky S-62)

First flight of the XH-44 Hiller-copter

First flight of the Yakovlev Yak-38/Yak-36M

First flight of Vertol 107-II prototype

First flights of HAL ALH Dhruv Mark III

First forward flight of the Kamov Ka-62

First forward flight transition of the Curtiss-Wright X-100

First free flight hover of the Curtiss-Wright X-100

First free flight of a manned, all-jet VTOL aircraft

First free hover flight of the McDonnell XL-25/XH-35/XV-1 Convertiplane

First Hawker Siddeley Harrier's Initial Operational Capability established by the Royal Air Force (Harrier GR.1)

First helicopter air assault

First helicopter flight by an American military pilot (VS-300 2nd configuration)

First helicopter flight in the UK (Brennan Helicopter)

First helicopter mercy mission conducted (Sikorsky HNS-1 Hoverfly)

First helicopter naval rescue

First helicopter shipboard take-off and landing (Flettner Fl 265 V4)

First helicopter take-off and landing aboard ship (Sikorsky YR-4B)

First hover flight of Kamov Ka-26

First hover flight of the Boeing X-32B (JSF competitor)

First hover flight of the Curtiss-Wright X-19

First hover flight of the Dassault Mirage III V

First hover flight of the Dornier Do 31

First hover flight of the GE-Ryan XV-5A

First hover flight of the Kamov Ka-62

First hover flight of the Lockheed X-35B (JSF competitor)

First hover flight of the Lockheed XV-4A

First hover flight of the Nord 500 Cadet

First hover flight of the VFW VAK 191B

First hover flight of the Yakovlev Yak-141

First manned flight of the e-volo VC200 Volocopter

First manned VTOL flight (Breguet Gyroplane No. 1)

First medical emergency mission flown by a helicopter (Bell Model 30)

First Mil helicopter flies (prototype of the Mil Mi-1 Type series)

First official combat mission of a Bell AH-1 Cobra (AH-1G)

First outdoor flight of the Brennan helicopter

First public demonstration if the PV Engineering Forum PV-2

First public flight of the first practical British helicopter (Weir W.5)

First recorded destruction of a tank by a helicopter (Bell AH-1G Cobra)

First recorded Search and Rescue (SAR) mission (Piasecki HRP-1 Rescuer)

First scheduled helicopter passenger service commences

First scheduled helicopter passenger service in the USA commences

First scheduled helicopter service commences (Sikorsky S-51)

First semi-controlled flight of the 1919 Berliner machine

First succesful, ship-board, vertical landing of the F-35B

First successful bail-out from a rotary winged aircraft (Pitcairn YG-2)

First tethered flight of the Bratukhin Omega II/G-2 helicopter

First tethered flight of the Robertson VTOL

First tilt rotor landing at the world's first civil vertiport (Bell XV-15)

First transatlantic helicopter flight completed (Sikorsky H-19A)

First transition of the VFW VAK 191B

First unmanned helicopter deployed in operational service (Gyrodyne QH-50C)

First untethered flight of the Convair XFY-1 Pogo

First untethered hover flight of the Hawker P.1127

First untethered vertical take-off and landing of the Short SC.1

First untethered, autonomous flight of Tactical Robotics AirMule/Cormorant

First untethered, hover flight of the Yakovlev Yak-36

First US Marine Corps helicopter squadron (HMX-1) commissioned

First US Navy shipboard operation by a rotary wing aircraft (Pitcairn XOP-1)

First USMC helicopter pilot qualifies

First VTO of world’s first supersonic VTOL aircraft (EWR VJ 101C)

First VTOL flight in USA (John Newton Williams Machine)

First VTOL flight of the Hawker P.1127

Flight of Enstrom 280FX with Allison turboshaft

Official first flight of HAL Dhruv (Prototype PT1)

Retirement from service of the CH-46E

Robinson R44 Raven II lands at the South Pole

Royal Netherlands Air Force (RNLAF) Alouette III leaves service

Ryan X-13 Vertijet completes first full VTOL transition by a jet powered aircraft

Successful demonstration of the 1922 Berliner No. 4 machine

The AeroVelo Atlas achieves the Human Powered Helicopter (HPH) competition reqts.

The Bell UH-1 Iroquois retires from US Army service

The British European Airways (B.E.A.) Helicopter Experimental Unit is formed

The Eurocopter EC135 makes its first flight

The Eurocopter X3 technology demonstrator achieves 255 KTAS (472 km/h)

The Florine No. 2 tandem helicopter sets a flight endurance record

The MBB Bo 105 HGH achieves 250mph/218kts

The Mil Mi-24LL PSV demonstrator achieves 405 km/hr (219 kts)

The Royal Navy retires the Lynx after 41 years of service (Lynx HMA.8)

The Sikorsky X2 technology demonstrator achieves 250 KTAS (463 km/h)

The Weir W.6 becomes the first helicopter to carry a passenger

USCG rotary-wing aviation commences

Zee.Aero Z-P2 becomes the first eVTOL aircraft to complete a verti-circuit

Anton Flettner dies

Charles Kaman dies

Charles Kaman founds Kaman Aircraft Company

Establishment of Vertipedia co-founder and contributor Gene P. Munson

Establishment of Vertipedia founder and architect Nicholas C.G. Isaacs

First AHS Alexander A. Nikolsky Honorary Lecture given

First AHS Dr. Alexander Klemin Award presented

Frank Piasecki dies

Glidden (Glid) Doman dies

Harold Pitcairn dies

Hermann Glauert dies

Igor Sikorsky dies

Igor Sikorsky establishes the Sikorsky Aero Engineering Corporation

Juan de la Cierva dies

Larry Bell dies

Mikhael Mil dies

The first Cierva Lecture is given

'Aerodynamics of the Helicopter' is published

ACA commences its patent infringement case against the US Government

Aerospatiale is formed

AgustaWestland merger completed

AHS issues Quarterly Journal

AHS issues the first Semi Technical Bulletin

Award of contract to convert a fixed wing autogiro to direct control

Bell Helicopter Corporation becomes a wholly owned subsidiary of Bell Aircraft

Bell Helicopter Fort Worth Plant is recognized as a VFS Vertical Flight Heritage site

Bell Helicopter Gardenville site recognized as an AHS Vertical Flight Heritage site

CAA recognizes helicopters on pilot certificates

Enstrom F-28 certificated

Eurocopter becomes Airbus Helicopters

Eurocopter is formed

Finmeccanica - Helicopters formed from AgustaWestland

First AHS AgustaWestland International Fellowship Award presented

First AHS François-Xavier Bagnoud Award presented

First AHS Frederick L. Feinberg Award presented

First AHS Grover E. Bell Award presented

First AHS Harry T. Jensen Award presented

First AHS Howard Hughes Award presented

First AHS Igor I. Sikorsky International Trophy presented

First AHS Paul E. Haueter Award presented

First AHS Robert L. Pinckney Award presented

First Annual Dinner of the AHS

First Annual National Forum of the American Helicopter Society (AHS)

First Captain William J. Kossler, USCG Award presented

First European Rotorcraft Forum (ERF) commences

First FAA certification of an unmanned VTOL aircraft (Bell TR198 Eagle Eye)

First flight of a Soviet Union built rotorcraft (KaSkr-1 autogyro)

First flight of the Piasecki YH-16

First helicopter pilot certified (Les Morris)

First helicopter Type certificate issued (Bell Model 47)

First Honorary Fellowships of the American Helicopter Society (AHS) awarded

First publication of the Journal of the American Helicopter Society (AHS)

First Rotating Wing Aircraft Meeting commences

First technical meeting of the American Helicopter Society (AHS)

First Trade Exposition at an AHS Annual Forum

First Transformative Vertical Flight Concepts Workshop held

First Type Certificate awarded to a Gyroplane (Pitcairn PCA-2 Autogiro)

First VFS (then AHS) John J. Schneider Historical Achievement Award presented

Formal opening of The Helicopter Museum

Founding of the American Helicopter Society (AHS)

Franklin Institute inducted into the AHS Vertical Flight Heritage Sites program

Hughes Helicopter becomes a subsidiary of McDonnell Douglas

Incorporation of the American Helicopter Society, Inc. (AHS)

JSF development contract awarded

Last Bell 47G model comes off the production line

Leonardo da Vinci's studio recognized as an AHS Vertical Flight Heritage site

Light Observation Helicopter (LOH) contract awarded to Hughes OH-6A

McDonnell Douglas Corp becomes part of The Boeing Company

MD Helicopters Inc. is formed

NACA issues TM 340

NASA Langley Research Center recognized as an AHS Vertical Flight Heritage site, June, 25 2015 00:00:00

NASA NFAC Transferred to US Air Force

Navy Helicopter School at CGAS Floyd Bennett Field closes

Opening of the American Helicopter Museum & Education Center

Patent on the tilt rotor concept applied for

Piasecki/Vertol/Boeing “Morton” site recognized as an AHS Vertical Flight Heritage site

Pitcairn-Cierva Autogiro Company of America formed

Pratt & Whitney Canada Plant becomes an AHS Vertical Flight Heritage site

Robinson R22 Beta certified

Robinson R22 Type Certificated

Robinson R44 certificated

Robinson R44 Clipper I certificated

Robinson R66 Turbine Type certificated

Robinson's R44 Cadet FAA Certificated

Robinson's R66 Police helicopter FAA Certificated

Sikorsky Aircraft Corp. officially becomes part of the Lockheed Martin Company

Sikorsky wins UTTAS competition

SNCASE is re-named Sud-Est Aviation

Sud-Aviation formed

The American Helicopter Society (AHS) becomes the Vertical Flight Society (VFS)

The Boeing Airplane Company acquires Vertol Aircraft Corporation

The CAA issues the first US civil helicopter safety standards

The Cierva Autogiro company is formed

The Daniel Guggenheim School of Aerospace Engineering is recognized as a VFS Vertical Flight Heritage site

The GE T58 becomes the first turbine engine certificated for civil helicopter use

The US Army Air Corps accepts its first helicopter (Sikorsky XR-4)

U.S.C.G directed to develop helicopters for sea-going operations

US Navy receives its first helicopter (Sikorsky XHNS-1)

Westland signs contract to license build the Sikorsky S-51

Weston-super-Mare Airport is recognized as a VFS Vertical Flight Heritage site