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Trainer aircraftIn service
Basic training aircraft
HAL HTT-40 is a basic training aircraft originating in India. It was built by Hindustan Aeronautics Limited. Reported operators include Indian Air Force.
IndiaTechnical data
True scale
Sourced dimensions beside a 1.75 m human reference.
Points represent sourced observations, including revisions. Revisions on the same effective date are not separate inventory events. Ranges appear in the table and are not plotted as exact points.
| Observation / report period | Value | Source | Claim state |
|---|---|---|---|
| 28 Sept 2026 | 400 km/h | Wikipedia contributors | superseded |
Basic training aircraft
India
Hindustan Aeronautics Limited
Aircraft Research and Design Centre
In service
Indian Air Force
3 (excluding 2 prototypes)
2026 (planned)
31 May 2016
HPT-32 Deepak
2
10.5 m (34 ft 5.5 in)
11 m (36 ft 1 in)
3.4 m (11 ft 1.75 in)
2,800 kg (6,173 lb)
450 kg
1 × Honeywell Garrett TPE331-12B turboprop, 834 kW (1,100 shp) derated to 708 kW (950 shp)
400 km/h (249 mph, 216 kn)
1,000 km (621 mi, 540 nmi)
6,000 m (19,680 ft)
4-bladed
450 km/h (279 mph, 243 kn)
+6/-3
Length - 10.061 meter
Height - 3.583 meter
Span - 11.0 meter
Basic Empty Mass - 2414 kg
Internal fuel mass - 460 kg
Maximum Take-off Mass - 3040 kg
Normal Training Configuration Mass - 2960 kg
Take-off Distance - 785 meter
Landing Distance - 987 meter
Time to Climb 3 km - 7.05 min
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
Service ceiling - 6 km
Range - 1009 km
Endurance - 3.09 hrs
Max permissible Speed - 450 kmph @ 6g
Max level Speed - 407 kmph
Max Power - 1100 Shp
Product Manufacturer Hindustan Aeronautics Limited (HAL)
The HTT-40 is powered by Honeywell TPE331-12B Turboprop engine.
Maximum speed 450 km/h
HAL HTT-40 equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
IndiaReported count for HAL HTT-40 · HTT-40. Service scope: Air Force; does not replace a national total. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Retired, wholly reserve and on-order rows are excluded; the reported count retains any explicitly mixed stock scope in the quoted row. Count column(s): in service: 3. Origin: India. The listed variants/roles are the scope, not an immediately deployable count. Dates are the count-cell citations' stated source period (2026), not the article revision. Cited source 2026-09-18. Edition or publication years do not claim an exact inventory census day.
Reported count for HAL HTT-40 · –. Service scope: Air Force; does not replace a national total. 1 distinct quantity component(s) from the same source list; shared rowspan cells counted once. Explicit source inventory scope: ordered; no other stock status or total inferred. Count column(s): in service: +67. Origin: India. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.