A 6-place helicopter derived from the XH-40 in 1960 for the US Army.  Used in Vietnam during the war beginning in Fall 1962 [AHS History Calendar | October 2017].


Data on design, manufacture and status

Latest or last design authority: Bell Helicopter Company
Originally designed by Bell Helicopter Corporation

Latest or last primary manufacturer: Bell Helicopter Company
Originally manufactured by Bell Helicopter Corporation

Parent type: Bell Model 204/UH-1 Iroquois

Aircraft status: Status unknown


Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift configuration: Single main rotor

Dedicated control device: Tail rotor

Crew required: 2

Crew seating: Side-by-side

Landing gear: Skids

Layout and Dimensions

Data on aircraft size

Overall Dimensions
Overall Height:  
Overall Length:  
Overall Width: 13.41 m 44.0 ft
Airframe Dimensions
Airframe Length:  
Airframe Width:  
Airframe Height:  
Landing Gear Dimensions
Landing Gear Base:  
Landing Gear Track:  
Cabin Dimensions
Cabin Internal Height:  
Cabin Internal Length:  
Cabin Internal Width:  

Weights and Performance

Data on aircraft weight and flight characteristics

Cruise Speed: 115 mph (185.075 km/h)

Max Gross Weight (ground): 3,266 kg 7,200 lb
Max Gross Weight (airborne):  
Max Take-off Weight: 3,266 kg 7,200 lb
Empty Weight:  
Useful Load:  
Empty Weight Fraction:  
Climb Performance
Max Rate of Climb: 11 m/s 2,100 fpm
Hover Performance
Hover Ceiling IGE:  
Hover Ceiling OGE: 3,505 m 11,500 ft
Max Level Flight Speed: 227 km/h 123 kts
Never Exceed Speed:  
Service Ceiling:  
Range and Endurance
Max Range: 338 km 182 nm
Max Endurance:  

Engine Details

Aircraft powerplant (lift and/or propulsion)

Provided powerplant data is for uninstalled, sea level, static operations.

Number of engines: 1
Designation: Lycoming T53-L-1A turbine
Manufacturer: Lycoming Engines
Normal Ratings
Max continuous: 567 kW 760 hp
Take-off / rated: 633 kW 848 hp
OEI Ratings
OEI contingency:  
OEI continuous:  
OEI 30-second:  
OEI intermediate:  

Primary Lift Device

Data on primary lift devices such as main rotors

Main Rotor Characteristics
Diameter: 13.41 m 44.00 ft
Direction of Rotation: Counterclockwise
Hub Type: Semi-rigid
Main Rotor Blade Characteristics
Blade Construction: All-metal
Blade Chord: 0.381 m 1.25 ft
Blade Tip Geometry:
Blade Twist:  
Number of Blades: 2
Main Rotor Derived Characteristics
Disc Area: 141.26 m² 1520.6 ft²
Disc Loading: 23.12 kg/m² 4.735 lb/ft²
Solidity: 0.0362
Main Rotor Blade Derived Characteristics
Blade area per blade: 2.55 m² 27.5 ft²
Tip Speed:  

Primary Control Device

Data on primary control devices such as tail rotors

Tail Rotor Characteristics
Diameter: 2.59 m 8.50 ft
Configuration: Pusher
Direction of Rotation: Top blade fwd
Tail Rotor Blade Characteristics
Number of Blades: 2
Blade Construction:  
Blade Chord:  
Blade Twist:  
Tail Rotor Derived Characteristics
Disc Area: 5.27 m² 56.7 ft²
Tail Rotor Blade Derived Characteristics
Tip Speed:  
Blade Area (per blade):  

Related VFS Resources

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Related Public Resources

Resources related to the UH-1A Iroquois, provided by public sources across the internet.