Vertipedia - Sikorsky HH-53B Super Jolly, Pave Low Testbed

Initial evaluation version and testbed for the Pave Low system for the US Air Force. 2 aircraft were used in the evaluation. Sometimes referred to as 'Super Jolly Green Giant'.

Source: “Darkness Falls: A Farewell to the Pave Low”, Raymond L. Robb, VERTIFLITE Winter 2008, pages 30-42

By the glossary definition, with a Useful Load of 18676 lb (8471 kg), the calculated Empty Weight is approximately 10580 kg.

Overview

Data on design, manufacture and status

Design authority: Sikorsky Aircraft Corp.

Primary manufacturer: Sikorsky Aircraft Corp.

Parent type: Sikorsky S-65/H-53

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: 2 in Side-by-side arrangement

Landing gear: Wheels (all 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):	19,051 kg	42,000 lb
Max Gross Weight (airborne):
Max Take-off Weight:	19,051 kg	42,000 lb
Empty Weight:	10,580 kg	23,324 lb
Useful Load:	8,471 kg	18,676 lb
Empty Weight Fraction:	0.555

Climb Performance
Max Rate of Climb:

Hover Performance
Hover Ceiling IGE:
Hover Ceiling OGE:

Limitations
Max Level Flight Speed:	300 km/h	162 kts
Never Exceed Speed:
Service Ceiling:

Range and Endurance
Max Range:	1,556 km	840 nm
Max Endurance:

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

Powerplant
Number of engines:	2
Designation:	GE T64-GE-3 turbine
Manufacturer:	GE Aviation

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

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

Main Rotor Characteristics
Diameter:
RPM:
Direction of Rotation:	Unknown
Hub Type:

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

Main Rotor Derived Characteristics
Disc Area:
Disc Loading:
Solidity:

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

Tail Rotor Characteristics
Diameter:
Configuration:	Unknown
Direction of Rotation:	Unknown
RPM:

Tail Rotor Blade Characteristics
Number of Blades:	4
Blade Construction:
Blade Chord:
Blade Twist:

Tail Rotor Derived Characteristics
Disc Area:
Solidity:

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

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Number of engines:	2 Turbines
Max Level Flight Speed:	300 km/h	162 kts
Max Range:	1,556 km	840 nm
Max Endurance:

Max Gross Weight (ground):	19,051 kg	42,000 lb
Useful Load (calculated):	8,471 kg	18,676 lb