HAL HPT-32 (HTT-34) Deepak

Twin-Seat, Single-Engine Basic Trainer Aircraft

India | 1978

"The indigenously designed and developed HAL HPT-32 served both the Indian Air Force and Navy during its time as a basic trainer for the country."

Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the HAL HPT-32 Twin-Seat, Single-Engine Basic Trainer Aircraft.

1 x Lycoming AEO-540-D4B5 piston engine developing 260 horsepower and driving a two-bladed propeller unit at the nose.
Propulsion

174 mph
280 kph | 151 kts
Max Speed

870 miles
1,400 km | 756 nm
Operational Range

Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the HAL HPT-32 Twin-Seat, Single-Engine Basic Trainer Aircraft.

2
(MANNED)
Crew

25.3 ft
7.70 m
O/A Length

31.2 ft
(9.50 m)
O/A Width

9.5 ft
(2.90 m)
O/A Height

2,282 lb
(1,035 kg)
Empty Weight

2,921 lb
(1,325 kg)
MTOW

Armament
Available supported armament and special-mission equipment featured in the design of the HAL HPT-32 (HTT-34) Deepak Twin-Seat, Single-Engine Basic Trainer Aircraft provided across 4 hardpoints.

OPTIONAL:
Four hardpoints for the carrying of conventional drop bombs, rocket pods, and gun pods for training purposes.

X

Hardpoints Key:

Centerline

Wingroot(L)

Wingroot(R)

Wing

Wingtip

Internal

Not Used

Variants
Notable series variants as part of the HAL HPT-32 (HTT-34) Deepak family line.

HPT-32 - Base Series Designation; basic trainer versions; equipped with Lycoming AEO-540 piston engines.

HTT-34 - Turboprop-powered form fitting Allison 250-B17D series engine; version of 1984.

Authored By: Staff Writer | Last Edited: 01/28/2022 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.

The HAL (Hindustan Aeronautics Ltd) HPT-32 "Deepak" ("Lamp") was an Indian basic/primary trainer aircraft development of the Cold War period, the design being adopted by both the Indian Air Force (IAF) and Indian Navy (8 examples) services for basic airman training. Development took place in the 1970s and a first-flight was recorded on January 6th, 1977. Two primary operational versions were eventually produced - the "HPT-32" and "HTT-34".

The aircraft was of fundamental design driven by a two-bladed propeller unit at the nose, seating its crew of two (student and instructor) in side-by-side arrangement, and sporting low-mounted, straight mainplane wing members. The tail unit was largely conventional, given a single vertical fin and low-set horizontal planes. The tricycle undercarriage (nose leg with main legs) were fixed in flight non-retractable) while the wide-view canopy provided excellent vision "out-of-the-cockpit".

As built, the HPT-32 had an overall length of 25.3 feet, a wingspan of 31.1 feet, and a height of 9.6 feet. Empty weight reached 2,280lb with a Maximum Take-Off Weight (MTOW) nearing 2,915lb. The aircraft held a maximum speed of 175 miles-per-hour and ranged out to 755 nautical miles on internal fuel. Four external hardpoints were integral, these positions satisfying armed training endeavors. Up to 562lb of ordnance could be carried including machine gun pods, rockets, and conventional drop bombs.

The base operating version was the HPT-32 and this was followed into service by the HTT-34 which upgraded to a turboprop engine installation offering more power and better performance over the original. The powerplant-of-choice for this entry became the American Allison 250-B17D engine of 420 horsepower and a first-flight of this variant was recorded on June 17th, 1984.

Beyond its basic training role, the versatile, lightweight HPT-32 covered liaison/observation and target towing duties.

The line was replaced by the much more modern Swiss-originated Pilatus PC-7 (Mk.II) in same role during 2013.

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Operators
Global customers who have evaluated and/or operated the HAL HPT-32 (HTT-34) Deepak. Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 200 Units
Contractor(s): Hindustan Aeronautics Limited (HAL) - India

[ India ]

Similar
Developments of similar form-and-function, or related, to the HAL HPT-32 (HTT-34) Deepak Twin-Seat, Single-Engine Basic Trainer Aircraft Specifications and Pictures.

Pilatus PC-7

Going Further...
The HAL HPT-32 (HTT-34) Deepak Twin-Seat, Single-Engine Basic Trainer Aircraft appears in the following collections:

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