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.
OPTIONAL:
Four hardpoints for the carrying of conventional drop bombs, rocket pods, and gun pods for training purposes.
Supported Types
(Not all ordnance types may be represented in the showcase above)
Hardpoint Mountings: 4
Mounting Points
-
-
-
7
5
-
-
-
4
6
-
-
-
HARDPOINT(S) KEY:
X
15
13
11
9
7
5
3
1
2
4
6
8
10
12
14
COLOR KEY:
Fuselage Centerline
Fuselage Port/Wingroot
Fuselage Starboard/Wingroot
Wing/Underwing
Wingtip Mount(s)
Internal Bay(s)
Not Used
Note: Diagram above does not take into account inline hardpoints (mounting positions seated one-behind-the-other).
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.
Ribbon graphics not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective aerial campaigns / operations / aviation periods.
Similar Aircraft
Aviation developments of similar form and function, or related to, the HAL HPT-32 (HTT-34) Deepak...
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