Aviation & Aerospace - Airpower 2024 - Aircraft by Country - Aircraft Manufacturers Vehicles & Artillery - Armor 2024 - Armor by Country - Armor Manufacturers Infantry Small Arms - Warfighter 2024 - Small Arms by Country - Arms Manufacturers Warships & Submarines - Navies 2024 - Ships by Country - Shipbuilders U.S. Military Pay 2024 Military Ranks Special Forces by Country

Leonardo TH-73 AHTS (Advanced Helicopter Training System)

Naval Helicopter Trainer

United States | 2020

"The Leonardo TH-73A is a dedicated helicopter trainer serving the United States Navy and based in the AW119 platform."

Authored By: Staff Writer | Last Edited: 08/10/2021 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
The United States Navy (USN) has selected the Italian Leonardo AW119 "Koala" light utility helicopter to become its next helicopter trainer. The product is a further development of the earlier AW109 of 1976 and represents a more modern offering, the original models debuting in 2000. To date (2020), about 300 units of the AW119 have been produced for global use. The AW119 in USN service is designated as the "TH-73" (specific models include the "TH-73A" operational form) and is currently being evaluated by Navy airmen out of Leonardo's Philadelphia facility (2020). The project resides under the "Advanced Helicopter Training System" (AHTS) name.

The AW119 was selected by the service to succeed an aging line of TH-57 "Sea Ranger" light utility types (B- and C-models), these based in the popular Cold War-era Bell Model 206 (also operated by the U.S. Army as the "Kiowa") and having served the USN for some 35 years. The Model 206 series was itself introduced in 1967. The TH-57 fleet will begin retirement during 2022.

A TH-73 prototype form made its maiden flight on December 20th, 2018 and was formally selected by the USN on January 13th, 2020. The helicopters are produced by Leonardo, formally AgustaWestland, through the Philadelphia-based "AgustaWestland Philadelphia Corporation" with deliveries to the Navy expected to run from 2020 until 2024. The product will be used to serve in the training of helicopter airmen belonging to the United States Navy, Marine Corps, and Coast Guard branches for the next three decades.

The specific TH-73A operational model is based in the modernized, improved AW119 Mk.II form which sees an increase to Maximum Take-Off Weight (MTOW), improved fuel efficiency, greater overall power / performance, and sports an all-new rotor design. The Navy's version also incorporates a Genesys Aerosystems digital "glass" cockpit.

The helicopter seats a crew of two (instructor and student) in a side-by-side cockpit arrangement and can carry a further three passengers in the compartment behind. Power is from a single Pratt & Whitney PT6B-37A turboshaft engine driving a four-bladed main rotor overhead and a two-bladed tail rotor facing port side. Dimensions include a length of 42.4 feet, a diameter of 35.5 feet, and a height of 10.8 feet. Weight starts at 3,325lb unloaded. Performance specifications include a maximum speed of 152 knots, a ceiling up to 15,000 feet, and a range out to 357 nautical miles.

The helicopter's form is conventional with a heavily windowed fuselage offering excellent vision out-of-the-cockpit. Entry to the cockpit seats is by way of hinged automobile-style doors along either side of the forward fuselage section. The cockpit sits behind a short, rounded nosecone. The engine is installed in a housing over the passenger cabin and features a short mast. Passenger access is through traditional sliding doors on the fuselage sides. The tail stem houses a drive shaft running to the tail rotor. The stem also showcases horizontal planes and is capped by a dorsal and ventral vertical plane. For ground-running, the helicopter makes use of a simple four-point landing skid.

Content ©MilitaryFactory.com; No Reproduction Permitted.

July 2020 - The United States Navy has begun early training with the TH-73A helicopter trainer out of Leonardo's facility in Philadelphia, USA.

November 2020 - The USN has ordered a second production batch of TH-73A training helicopters from Leonardo. The order covers 36 total airframes.

August 2021 - The United States Navy's Training Air Wing has received its first TH-73 helicopter trainer. Up to 130 are planned for procurement.

Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Leonardo TH-73A AHTS Naval Helicopter Trainer.
1 x Pratt & Whitney Canada (PWC) PT6B-37A turboshaft engine developing 1,000 horsepower driving four-bladed main rotor unit and two-bladed tail rotor unit (facing port side).
175 mph
282 kph | 152 kts
Max Speed
15,010 ft
4,575 m | 3 miles
Service Ceiling
525 miles
845 km | 456 nm
Operational Range
1,800 ft/min
549 m/min
City-to-City Ranges
Operational range when compared to distances between major cities (in KM).
The nose-to-tail, wingtip-to-wingtip physical qualities of the Leonardo TH-73A AHTS Naval Helicopter Trainer.
42.5 ft
12.95 m
O/A Length
35.6 ft
(10.85 m)
O/A Width
11.8 ft
(3.60 m)
O/A Height
3,329 lb
(1,510 kg)
Empty Weight
6,283 lb
(2,850 kg)
Design Balance
The three qualities reflected below are altitude, speed, and range. The more full the box, the more balanced the design.
Notable series variants as part of the Leonardo TH-73 AHTS (Advanced Helicopter Training System) family line.
TH-73 - Base Series Designation.
TH-73A - Initial production model of 2020.
Global customers who have evaluated and/or operated the Leonardo TH-73 AHTS (Advanced Helicopter Training System). Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 46 Units

Contractor(s): Leonardo - Italy
National flag of the United States

[ United States ]
Relative Max Speed
Hi: 200mph
Lo: 100mph
Aircraft Max Listed Speed (175mph).

Graph Average of 150 MPH.
Era Crossover
Pie graph section
Showcasing Aircraft Era Crossover (if any)
Max Alt Visualization
Small airplane graphic
Production Comparison
Entry compared against Ilyushin IL-2 (military) and Cessna 172 (civilian) total production.
MACH Regime (Sonic)
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030
Aviation Timeline
1 / 2
Image of the Leonardo TH-73 AHTS (Advanced Helicopter Training System)
Image from the United States Navy; Public Release.
2 / 2
Image of the Leonardo TH-73 AHTS (Advanced Helicopter Training System)
Image from U.S. Navy NAVAIR.

Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to airborne requirements.
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 Leonardo TH-73 AHTS (Advanced Helicopter Training System) Naval Helicopter Trainer appears in the following collections:
Disclaimer | Privacy Policy | Cookies

2024 Military Pay Scale Military Ranks U.S. DoD Dictionary Conversion Calculators Military Alphabet Code Military Map Symbols US 5-Star Generals WW2 Weapons by Country

The "Military Factory" name and MilitaryFactory.com logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. We do not sell any of the items showcased on this site. Please direct all other inquiries to militaryfactory AT gmail.com. No A.I. was used in the generation of this content.

Part of a network of sites that includes Global Firepower, WDMMA.org, WDMMW.org, and World War Next.

©2024 www.MilitaryFactory.com • All Rights Reserved • Content ©2003-2024 (21yrs)