Vertipedia - Bell HTL-4

Overview

Data on design, manufacture and status

Design authority: Bell Aircraft Corporation

Primary manufacturer: Bell Aircraft Corporation

Parent type: Bell H-13/HTL-4

Aircraft status: No longer flying

Configuration

Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift devices: 1 Single main rotor

Dedicated control device: 1 Tail rotor

Crew required: 1 in Side-by-side arrangement

Landing gear: Wheels (non-retractable)

Aircraft Details

Data on aircraft configuration, weights, flight performance and equipment

Layout and Dimensions

Weights and Performance

Engine Details

Primary Lift Device

Primary Control Device

Overall Dimensions
Overall Height:
Overall Length:
Overall Width:

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
Max Gross Weight (ground):	1,066 kg	2,350 lb
Max Gross Weight (airborne):
Max Take-off Weight:	1,066 kg	2,350 lb
Empty Weight:

Climb Performance
Max Rate of Climb:

Hover Performance
Hover Ceiling IGE:
Hover Ceiling OGE:

Limitations
Max Level Flight Speed:
Never Exceed Speed:
Service Ceiling:

Range and Endurance
Max Range:
Max Endurance:

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

Powerplant
Number of engines:	1
Designation:	Franklin O-335-5 reciprocating
Manufacturer:	Franklin Engine Company

Normal Ratings
Max continuous:
Take-off / rated:
Intermediate:
Maximum:

OEI Ratings
OEI contingency:
OEI continuous:
OEI 30-second:
OEI intermediate:

Main Rotor Characteristics
Diameter:	10.71 m	35.13 ft
RPM:
Direction of Rotation:	Counterclockwise
Hub Type:	Teetering

Main Rotor Blade Characteristics
Blade Construction:
Blade Chord:
Blade Tip Geometry:
Blade Twist:
Number of Blades:	2

Main Rotor Derived Characteristics
Disc Area:	90.02 m²	969.0 ft²
Disc Loading:	11.84 kg/m²	2.425 lb/ft²
Solidity:

Main Rotor Blade Derived Characteristics
Blade area per blade:
Tip Speed:

Tail Rotor Characteristics
Diameter:
Configuration:	Tractor
Direction of Rotation:	Top blade fwd
RPM:

Tail Rotor Blade Characteristics
Number of Blades:	2
Blade Construction:
Blade Chord:
Blade Twist:

Tail Rotor Derived Characteristics
Disc Area:
Solidity:

Tail Rotor Blade Derived Characteristics
Tip Speed:
Blade Area (per blade):

References

References and sources used

Handbook Erection and Maintenance Instructions

Pubished Under the Authority of the Secretary of the Air Force and the Chief of the Bureau of Aeronautics
T.O. No. 1H-13C-2, 30 Jan 1954 (page 1)
Report or Technical Manual
Document formerly AN 01-110HAB-2. Covers USAF Series H-13C/D/E/G and Navy Model HTL-4 helicopters

Handbook Flight Operating Instructions USAF Series H-13C, H-13D , Navy Models HTL-4

US Air Force/Bureau of Aeronautics
1H-13 C-1, 15 May 1952 (page 11)
Report or Technical Manual
Original designation of document was AN 01-110HAB-1