Evolution of Helicopters
Evolution of Helicopters
Evolution of Helicopters
The report looks into the history of helicopters, from initial days
of conception beginning from 4th Century A.D to today, with
anatomy, features and a brief insight into Indian scenario.
Helicopter A brief insight into what is a helicopter and its
Basics features .
Definition
A helicopter is a type of
rotorcraft in which lift and
thrust are supplied by one
or more engine driven
rotors.
Features
They are able to hover, fly
forward, backward and
sideward, and perform
other desirable maneuvers.
Main Rotor
Tail Rotor
Drive Shaft
Cockpit
Tail Boom
Engine, Transmission,
Fuel etc.
Landing Skids
Helicopter A view at the various uses of a helicopter in
Roles civilian and military area.
Limitations
Low Speed
Vibrations
Helicopter A journey through the evolution of the
History helicopters.
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19th century
20th century
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Autogyro
Also known as Gyroplane, Gyrocopter or Rotaplane, it’s a
type of rotorcraft which utilises an unpowered rotor in
autorotation to develop a lift, and an engine powered
propeller, similar to that of a fixed wing aircraft , to
provide thrust.
Helicopter A journey through the evolution of the
History helicopters.
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It formed the most tangible link between the early design
concept of rotary-wing aviation and the practical aircraft
that is capable of military operation. It was indeed quite
different from earlier models. It was an incredible
advancement in helicopters, but others soon followed.
Helicopter A journey through the evolution of the
History helicopters.
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Helicopter A journey through the evolution of the
History helicopters.
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Helicopter A look into the basic components of a
Anatomy helicopter.
Tail Fin
Stabilizer Bar
Swash Plate
Tail Rotor
Tail Rotor
Drive Shaft
Tail Skid
Cowling
45 Gearbox
Mast
Transmission
Synchonized Elevator
Tail Boom
Engine Mount
Landing Skids
AH-1 HueyCobra
Nation: USA
Manufacturer: Bell Helicopter Co.
Type: Attack Helicopter
Year: 1965 (first AH-1G)
Power Plant: Two GE-T700-GE-401 turbine engines
(1690 SHP Each)
Rotor Diameter: 44 ft
Fuselage Length: 44 ft 7 in
Overall Length: 52 ft 11.5 in
Height: 13 ft 6 in
Empty Weight: 6,598 lb
Max Takeoff Weight: 14,750 lbs
Max Speed: 160 kts
Cruise Speed: 120-130 KIAS
Ceiling: 12,200 ft
Range: 315 miles (sea level, 8% reserve)
Time on Station: 2+00, 2+30 With 77 gal. Aux Tank
Crew: 2, Pilot in Rear Seat, Co-pilot/Gunner in Front Seat
Helicopter A look into Military aircrafts of various
Models countries.
AH-64 Apache
Nation: USA
Manufacturer: McDonnell Douglas
Type: Attack Helicopter
Year: 1984
Engine: 2 General Electric T700-701C turboshaft, 1,857
shp
Rotor Diameter: 48 ft
Tail Rotor Diameter: 9' 2"
Fuselage Length: 49 ft 1 in
Overall Length: 58 ft 3 in
Height: 16 ft 9.5 in
Empty Weight: 10,760 lb
Max Takeoff Weight: 21,000 lb
Max Speed: 186 mph (level), 227 mph (never exceeded powerdive)
Ceiling: 10,200 ft (hover)
Range: 428 miles
Crew: 2
Load/Armament: 1 M230A1 30mm chain gun; 4 underwing hardpoints for Hellfire and Hydra 70 rockets.
Typical loadout is 8 Hellfire and 38 Hydra 70 (in 2 17 rocket pods).
Helicopter A look into Military aircrafts of various
Models countries.
Length: 16.4 ft
Wing Span: 12.3 ft
Rotor Diameter: 8.2 ft
Power: 2 x Allison 250-C20B Gas Turbines
Cruise Speed: 160 knots
Dash Speed: 200 knots
Loiter Speed: 110 knots
Endurance: 5 Hours (Approx.)
Ceiling: 20,000 ft
CH - 3E
Nation: USA
Manufacturer: Sikorsky Aircraft
Type: Cargo Helicopter
Year: 1966
Engine: 2 General Electric T58-GE-5 turboshaft,
1,500 shp each
Rotor Diameter: 62 ft
Fuselage Length: 73 ft
Height: 18 ft 1 in
Loaded Weight: 22,050 lb
Max Speed: 177 mph
Ceiling: 21,000 ft
Range: 779 miles
Crew: 3
Load/Armament: 2 M2 .50 machine guns, cargo
Helicopter A look into Military aircrafts of various
Models countries.
CH - 53
Nation: USA
Manufacturer: Sikorsky Aircraft
Type: Assault Transport Helicopter
Year: 1968
Engine: 2 General Electric T64-GE-7 turboshaft,
3,435 shp
Rotor Diameter: 72 ft 3 in
Fuselage Length: 67 ft 2 in
Overall Length: 88 ft 3 in
Height: 24 ft 11 in
Empty Weight: 23,257 lb
Max Takeoff Weight: 37,466 lb
Max Speed: 196 mph
Ceiling: 20,400 ft
Range: 540 miles
Crew: 3
Load/Armament: 38 troops
Helicopter A look into Military aircrafts of various
Models countries.
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