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HAI E1-79 Pegasus (series)


Reconnaissance Unmanned Air System (UAS)


Greece | 1992



"The HAI Pegasus series of UAVs is a wholly-Greek drone development and intended for the ISR role."



Authored By: Staff Writer | Last Edited: 06/26/2022 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
The HAI E1-79 "Pegasus" is an Unmanned Air System (UAS) of Greek origin, developed and produced under the parent brand label of the Hellenic Aerospace Industry (HAI). The aircraft is reserved for the Intelligence-Surveillance-Reconnaissance (ISR) over-battlefield role and has seen only limited production reached since service entry. Development on the Pegasus was handled jointly between KETA (the Hellenic Air Force Research & Development Center) and HAI and began in 1979 though a first-flight in prototype form was not had until 1982. From this, the product would have to wait a considerable amount to time to see formal service introduction - this occurring in 1992.

The Pegasus is conventional by UAS standards, incorporating a twin-boom, pusher-prop arrangement along with a slab-sided fuselage and high-mounted wings. The twin booms emanate from the trailing edge of each mainplane and are capped at the rear by vertical tailplanes and joined together by a shared horizontal plane. The undercarriage is of a tricycle arrangement and wheeled while remaining fixed in place during flight. Over the fuselage is a protruding component seating a disc-shaped fitting. A trainable turret is seen under the fuselage housing sensors and camera equipment.

Dimensions include a running length of 6.9 feet with a wingspan of 16.4 feet, making it relatively compact. With its conventional powerplant scheme (propeller driven in pusher arrangement), the UAS can reach speeds of 100 miles-per-hour. On internal fuel, the aircraft has an endurance of 3.5 hours.

The "Pegasus II" is a dimensionally larger, heavier, and more advanced evolution of the original Pegasus platform with enhanced mission capabilities. This entry first appeared in 2005 and has seen equally-limited production totals to date (2020). Length is increased to 14.1 feet while the wingspan reaches 20.34 feet while being able to stay aloft for some 15 hours straight. It continues with the ISR function as its primary role.

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Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the HAI Pegasus Mk II Reconnaissance Unmanned Air System (UAS).
1 x Conventional engine at rear of fuselage driving two-bladed propeller unit in pusher arrangement.
Propulsion
99 mph
160 kph | 86 kts
Max Speed
1,243 miles
2,000 km | 1,080 nm
Operational Range
City-to-City Ranges
Operational range when compared to distances between major cities (in KM).
NYC
 
  LON
LON
 
  PAR
PAR
 
  BER
BER
 
  MOS
MOS
 
  TOK
TOK
 
  SYD
SYD
 
  LAX
LAX
 
  NYC
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the HAI Pegasus Mk II Reconnaissance Unmanned Air System (UAS).
0
(UNMANNED)
Crew
14.1 ft
4.30 m
O/A Length
20.3 ft
(6.20 m)
O/A Width
441 lb
(200 kg)
Empty Weight
551 lb
(250 kg)
MTOW
Armament
Available supported armament and special-mission equipment featured in the design of the HAI E1-79 Pegasus (series) Reconnaissance Unmanned Air System (UAS) .
None. Mission equipment limited to sensors / cameras for the ISR role.
Variants
Notable series variants as part of the HAI E1-79 Pegasus (series) family line.
E1-79 "Pegasus" - Base Series Designation.
Pegasus II - Variant of greater dimensions and increased operating weights; improved operating performance.
Operators
Global customers who have evaluated and/or operated the HAI E1-79 Pegasus (series). Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 20 Units

Contractor(s): Hellenic Aerospace Industry (HAI) / State Aircraft Factory (SAF) - Greece
National flag of Greece

[ Greece ]
Relative Max Speed
Hi: 100mph
Lo: 50mph
Aircraft Max Listed Speed (99mph).

Graph Average of 75 MPH.
Era Crossover
Pie graph section
Showcasing Aircraft Era Crossover (if any)
Production Comparison
20
36183
44000
Entry compared against Ilyushin IL-2 (military) and Cessna 172 (civilian) total production.
MACH Regime (Sonic)
Sub
Trans
Super
Hyper
HiHyper
ReEntry
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030
Aviation Timeline
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Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to airborne requirements.
RECONNAISSANCE
UNMANNED
Recognition
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.
Going Further...
The HAI E1-79 Pegasus (series) Reconnaissance Unmanned Air System (UAS) appears in the following collections:
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