Vertipedia - Sikorsky CH-53K (Prototype EDM-1) King Stallion

First flight on 27 Oct 2015 at Sikorsky's West Palm Beach, Florida Development Flight Center by aircraft EDM-1 (Engineering Development Model-1)

Overview

Data on design, manufacture and status

Design authority: Sikorsky Aircraft Corp.

Primary manufacturer: Sikorsky Aircraft Corp.

Parent type: Sikorsky CH-53K

Aircraft status: In development

Configuration

Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift devices: 1 Single main rotor

Dedicated control device: 1 Tail rotor

Crew required: 1-2 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:	8.66 m	28.4 ft
Overall Length:
Overall Width:	24.01 m	78.8 ft

Airframe Dimensions
Airframe Length:	22.29 m	73.1 ft
Airframe Width:	5.33 m	17.5 ft
Airframe Height:

Landing Gear Dimensions
Landing Gear Base:	8.43 m	27.7 ft
Landing Gear Track:	3.91 m	12.8 ft

Cabin Dimensions
Cabin Internal Height:	2.00 m	6.6 ft
Cabin Internal Length:	9.10 m	29.9 ft
Cabin Internal Width:	2.70 m	8.9 ft

Weights
Max Gross Weight (ground):	33,566 kg	74,000 lb
Max Gross Weight (airborne):	39,916 kg	88,000 lb
Max Take-off Weight:	33,566 kg	74,000 lb
Empty Weight:
Useful Load:
Empty Weight Fraction:

Climb Performance
Max Rate of Climb:

Hover Performance
Hover Ceiling IGE:
Hover Ceiling OGE:

Limitations
Max Level Flight Speed:	315 km/h	170 kts
Never Exceed Speed:
Service Ceiling:

Range and Endurance
Max Range:	841 km	454 nm
Max Endurance:

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

Powerplant
Number of engines:	3
Designation:	GE T408/GE38-1B 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:	24.08 m	79.00 ft
RPM:
Direction of Rotation:	Counterclockwise
Hub Type:

Main Rotor Blade Characteristics
Blade Construction:	Composite
Blade Chord:	0.900 m	2.95 ft
Blade Tip Geometry:	4th generation anhedral
Blade Twist:
Number of Blades:	7

Main Rotor Derived Characteristics
Disc Area:	455.41 m²	4902.2 ft²
Disc Loading:	73.71 kg/m²	15.096 lb/ft²
Solidity:	0.1666

Main Rotor Blade Derived Characteristics
Blade area per blade:	10.84 m²	116.6 ft²
Tip Speed:

Tail Rotor Characteristics
Diameter:	6.10 m	20.00 ft
Configuration:	Pusher
Direction of Rotation:	Top blade aft
RPM:

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

Tail Rotor Derived Characteristics
Disc Area:	29.19 m²	314.2 ft²
Solidity:

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

References

References and sources used

CH-53K Helicopter product info

Sikorsky
N/A, 2014
Website
Includes powerplant, performance and cabin size information. There are also qualitative descriptions of other attributes of the aircraft

Kilo is King: Sikorsky Unveils the CH-53K King Stallion

Mike HIrschberg
Vertiflite, July-August 2014, 2014
Periodical

Rotorcraft Forecast 2013

Forecast International
May 2013 (page Section B)
Report or Technical Manual

S-65 / H-53 Product History

Vinny Devine, Sikorsky Archives
Sikorsky Archives News October 2007, 2013
Website

Sikorsky CH-53K Helicopter

Sikorsky
Sikorsky, 01/14
Other
Source is a Sikorsky pamphlet on CH-53K (3198 (01/14))