Vertipedia - Firestone XR-9B

2 place liaison helicopter.

Overview

Data on design, manufacture and status

Design authority: Firestone ( G & A Aircraft Co.)

Primary manufacturer: Firestone ( G & A Aircraft Co.)

Parent type: Firestone XR-9

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 Tandem arrangement

Landing gear: Wheels (non-retractable)

Key Characteristics

Data on key physical features

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):	794 kg	1,750 lb
Max Gross Weight (airborne):
Max Take-off Weight:	794 kg	1,750 lb
Empty Weight:

Climb Performance
Max Rate of Climb:	5 m/s	1,000 fpm

Hover Performance
Hover Ceiling IGE:
Hover Ceiling OGE:

Limitations
Max Level Flight Speed:
Never Exceed Speed:
Service Ceiling:	3,048 m	10,000 ft

Range and Endurance
Max Range:	402 km	217 nm
Max Endurance:

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

Powerplant
Number of engines:	1
Designation:	Lycoming O-290-7 reciprocating
Manufacturer:	Lycoming Engines

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

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

Main Rotor Characteristics
Diameter:	8.53 m	28.00 ft
RPM:
Direction of Rotation:	Counterclockwise
Hub Type:

Main Rotor Blade Characteristics
Blade Construction:
Blade Chord:
Blade Tip Geometry:
Blade Twist:
Number of Blades:	3

Main Rotor Derived Characteristics
Disc Area:	57.21 m²	615.8 ft²
Disc Loading:	13.88 kg/m²	2.842 lb/ft²
Solidity:

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

Tail Rotor Characteristics
Diameter:	1.98 m	6.50 ft
Configuration:	Unknown
Direction of Rotation:	Unknown
RPM:

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

Tail Rotor Derived Characteristics
Disc Area:	3.08 m²	33.2 ft²
Solidity:

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

References

References and sources used

Helicopters From "A to Z" | Part II

Ralph P. Alex
AHS Newsletter - November, 1961, November 1961 (page 6)
Periodical

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Overview

Attribution

Number of engines:	1 Reciprocating
Max Level Flight Speed:
Max Range:	402 km	217 nm
Max Endurance:

Main Rotor Diameter:	8.53 m	28.00 ft
Max Gross Weight (ground):	794 kg	1,750 lb