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The AgustaWestland A 129 Mangusta & Airbus Helicopter Tiger

v1.1.1 / 01 nov 16 / greg goebel

* Dedicated helicopter gunships have been built all over the world. The first European contribution to the field was the Italian Agusta "A 129 Mangusta", and it has now been joined by the multinational Airbus Helicopter "Tiger". This document provides a history and description of the Mangusta and the Tiger.

HAP Tiger gunship helicopter


[1] A 129 MANGUSTA ORIGINS
[2] MANGUSTA IN SERVICE / MANGUSTA UPGRADES / MANGUSTA VARIANTS
[3] AIRBUS HELICOPTER TIGER ORIGINS
[4] TIGER DETAILS & VARIANTS
[5] COMMENTS, SOURCES, & REVISION HISTORY

[1] A 129 MANGUSTA ORIGINS

* Through most of the 1970s, European armed forces considered obtaining a dedicated helicopter gunship, but most opted over the short run to simply arm utility helicopters. Italy was the first European nation to produce a purpose-built gunship. In 1978, the Italian Agusta company began work on a light anti-armor helicopter gunship for the Italian Army. The original idea was to modify the Agusta A 109 utility helicopter for this purpose, but the company quickly realized that this was asking too much of the A 109, and went to an almost completely "clean sheet" design.

The first of five prototypes of the Agusta "A 129 Mangusta (Mongoose)" helicopter gunship performed its initial official flight on 15 September 1983, with the fifth in the air by March 1986. The successful trials led to a production order for 66 machines, though this was later trimmed to 60. After some delays, mostly due to development of the missile sighting system, the first batch of five operational machines was delivered in 1990.

* The Mangusta has a fairly typical helicopter gunship configuration: a sharklike fuselage with a conventional main / tail rotor drive configuration; tandem stepped cockpits, with the gunner in front and the pilot in back; stub wings for weapons loads, with two stores pylons per wing, for a total of four; and a nose-mounted day-night weapons sight.

The A 129 is powered by twin Rolls-Royce Gem 2 Mark 1004D turboshafts, with an emergency rating of 772 kW (1,035 SHP) each, license-built by Piaggio under the designation RR1004. The engines are separated by an armored firewall and each engine has its own fuel system, with a crossfeed to allow each engine to draw from the other's fuel system. The engine installations are designed to reduce noise and infrared signature; infrared suppressors can be fitted to the exhausts. Triple-redundant hydraulic systems are used to ensure reliability.


   AGUSTA A 129 MANGUSTA:
   _____________________   _________________   _______________________
 
   spec                    metric              english
   _____________________   _________________   _______________________

   main rotor diameter     11.9 meters         39 feet 
   tail rotor diameter     2.24 meters         7 feet 4 inches
   fuselage length         12.275 meters       40 feet 3 inches
   footprint length        14.29 meters        46 feet 11 inches
   overall height          3.35 meters         11 feet 

   empty weight            2,520 kilograms     5,575 pounds
   MTO weight              4,100 kilograms     9,040 pounds

   max speed               315 KPH             195 MPH / 180 KT 
   hover ceiling           3,705 meters        12,300 feet
   combat radius           100 kilometers      62 MI / 54 NMI
   endurance               3 hours
   _____________________   _________________   _______________________

   Hover ceiling is given in ground effect.

The fuselage is built mostly with composites and designed to be crashworthy, with the aircrew sitting in Martin-Baker "Helicopter Armored Crashworthy Seats Mark 1 (HACS 1)". The cockpits have flat window panels, with the window panels on the right opening for crew access. The window panels can be blown off in an emergency for a rapid escape.

The fuselage can resist hits from projectiles ranging in size up to 12.7 millimeters (0.50 caliber). The main rotor has four blades, while the tail rotor has two. The rotor blades are made of composite materials and are also designed to withstand 12.7-millimeter projectile hits, and tolerate 23-millimeter projectile hits. The blades can chop through tree branches 15 centimeters (6 inches) thick. The rotor hubs use elastomeric bearings that do not require lubrication. The main rotor driveshaft is hollow to allow fit of a mast-mounted sight.

Agusta A 129 Mangusta

The fixed tailwheel landing gear is heavily braced with shock absorbers. The stub wings can be raised 3 degrees and lowered 12 degrees from the horizontal. The initial production Mangusta has no built-in armament. Its main weapon is the US-built TOW wire-guided anti-tank missile. In addition, the Mangusta can carry stores such as 70-millimeter (2.75-inch) or 81-millimeter (3.18-inch) unguided rocket pods; or 7.62-millimeter, 12.7-millimeter, or 20-millimeter gun pods. A typical weapon load is a four-round TOW pack on each outer pylon, for a total of eight TOWs, and an unguided rocket or gun pod on each inner pylon. Maximum weapons load is 1,200 kilograms (2,645 pounds).

An Agusta-Harris digital "Integrated Multiplex System (IMS)", controlled by two computers and linked by a MIL-STD 1553B databus, integrates rotorcraft avionics, hydraulic systems, fuel systems, engine systems, and weapon systems. The IMS computer can store up to a hundred waypoints or ten flight plans, and works in conjunction with a continuous-wave Doppler radar altimeter for low-level flight navigation.

The crew control panels are based on color multi-function displays (MFDs) that provide flight and system status, as well as map information. Targeting is performed through a sighting system in the nose, original plans for a mast-mounted sight having been abandoned due to cost constraints. The sighting system includes an optical sight, a forward-looking infrared (FLIR) sight, and a laser rangefinder / target designator. The pilot uses a wide-angle FLIR mounted above the nose to fly at night and in bad weather.

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[2] MANGUSTA IN SERVICE / MANGUSTA UPGRADES / MANGUSTA VARIANTS

* The 16th production Mangusta introduced:

Manufacture was halted in 1992 after delivery of 45 production machines. With the end of the Cold War, the Italian Army wanted to re-assess their requirements. However, even at the time the Italians were beginning to realize that the "New World Order" wasn't going to be exactly a case of "peace breaking out all over". Instead of one big threat, Western military forces now had to deal with a bewildering range of smaller threats.

Three A 129s were committed to the intervention in Somalia from late 1992 to the spring of 1994. The Italians had a personal interest in Somalia, since the place had once been part of Italy's colonial empire. The Mangustas flew armed reconnaissance sorties for UN forces, and were armed with TOW missiles and 81-millimeter unguided rockets. Four more A 129s later operated off the carrier GARIBALDI in the embarrassing final withdrawal of Western forces from Somalia in early 1995.

The intervention demonstrated that the Mangusta was reliable and maintainable under difficult field conditions, but also underlined the fact that the Mangusta's original operational role, that of tank-buster, was not really appropriate for peacekeeping operations. The A 129 definitely needed a built-in gun, since nailing a sniper with a TOW was, though certainly effective, expensive. Other items that proved desireable included a video-recorder capability for scout missions, a Global Position System / Inertial Navigation System (GPS-INS), and sand filters.

The A 129 was also committed to peacekeeping operations in Albania following that country's economic and civil collapse in 1997. The Mangustas carried FN-Herstal HMP-50 12.7-millimeter gun pods and were fitted with countermeasures, including infrared exhaust suppressors and an infrared jammer. Mangusta service in that intervention appears to have been mostly uneventful.

* Even before the Mangusta's service in Somalia, Agusta had been considering improvements for the A 129, with an eye towards selling the machine on the export market. In 1986, the governments of Britain, Italy, the Netherlands, and Spain signed a memorandum of understanding (MOU) to investigate an improved version of the A 129, named the "Joint European Helicopter Tonal", where "Tonal" is the name of an Aztec deity. The Tonal was to feature more powerful engines, a new rotor system, retractable landing gear, improved sensors, and more powerful armament. However, the UK and the Netherlands backed out the project in 1990 when they decided to obtain the US AH-64 Apache gunship instead, and the Tonal project collapsed.

That was a disappointment but Agusta didn't give up, flying a series of Mangusta modifications with various improvements for possible export sales. In 1988, an evaluation machine was flown with two Allison-Garrett LHTEC T800 turboshafts, with 894 kW (1,200 SHP) each, full-authority digital engine controls (FADEC), and an uprated power transmission to handle the greater power. In 1992, the same machine was fitted with a nose turret with a single-barrel Lucas 12.7-millimeter (0.50-caliber) machine gun.

This evolution led to the initial flight of the more-or-less definitive "A 129 International" on 9 January 1995. This variant features LT800 turboshafts and a nose turret, though the turret is built by OtoBreda and carried an Alenia Difensa TM-197B 20-millimeter cannon, a license-built version of the General Electric (now Lockheed Martin) M197 three-barreled Gatling-type gun.

The A 129 International also features a distinctive five-bladed "Penta" rotor, substantially greater internal fuel capacity, improved avionics, and a "glass cockpit". It has been qualified to carry the US-built AGM-114L Hellfire anti-armor missile along with TOW, plus the US-built Stinger air-to-air missile (AAM). The Hellfire was considered early in the Mangusta development program but had originally been rejected, since with its substantially higher capability also comes a substantially greater price. Agusta also considered qualification of the French Matra Mistral AAM, but decided to focus on the Stinger.

Most of the improved avionics were not actually fitted in the demonstrator, partly because some of it hadn't been selected, and partly because some of it was expected to be defined by customers. However, in principle the new avionics was to include an upgraded navigation system built around a Litton GPS-INS unit; a new, more powerful main computer with modernized software; improved FLIR and targeting system, with a CCD camera replacing the direct optics; and a self-defense suite. The glass cockpit includes two 15 x 20 centimeter (6 x 8 inch) color MFDs built by Alenia.

* Agusta did not get any quick customer response with the A 129 International, but Italian Army did become interested in many of its features. The service decided to adopt a major subset of those features in a new Mangusta variant, the "A 129 CBT (Combattimento)". The A 129 CBT includes the five-blade rotor, the nose turret, most of the advanced avionics, and support of Hellfire and Stinger from the A 129 International. The A 129 CBT does retain the Gem turboshafts, though an uprated transmission is fitted, and apparently the cockpit layout is less sophisticated than that of the A 129 International.

As mentioned, only 45 of the original 60 Mangustas planned by the Italian Army had been built into the early 1990s. In 1999, the service placed an order for the remaining 15, to be built to A 129 CBT standard. In late 2001, another contract was awarded to AgustaWestland -- as the company had become known following a merger with Westland of the UK in 2000 -- to upgrade all surviving A 129s to the CBT specification. The first CBT was handed over to the Italian Army in the fall of 2002, and the program has now been completed, the machines having been redesignated "AH-129C" in service.

A second-phase "AH 129D" upgrade program is now in progress, with about two-thirds of the fleet being upgraded to a new combat system from Rafael of Israel. The primary focus of the AH 129D is support of the Rafael Spike-ER missile, with over twice the range of TOW, as well as "fire and forget" capability, plus midcourse updates via a fiber-optic thread. The AH 129D was given a number of system updates to support the Spike-ER:

The Mangusta crew to fire on a target without seeing it, with the gunner using the missile's optical / infrared imaging seeker to pick out the target for terminal attack. The first AH 129Ds were delivered to the Italian Army in early 2015. It seems likely that the Mangusta will be qualified for use of new 70-millimeter laser-guided rockets, or similar weapons, but no information is available on that yet.

AgustaWestland finally got a foreign buy for the Mangusta in the spring of 2007, when the Turkish Army selected the type to replace Bell AH-1 Cobras. The initial buy was for 51 machines, with the "T129" built in Turkey by Turkish Aerospace Industries. The T129 features Turkish avionics and weaponry. Deliveries began in the spring of 2014.

T129 Mangusta

* A concept was floated for a navalized Mangusta, known as the "A 129 Antiship" and referred to as the "Gannet" in some sources, with nose-mounted radar; an Elettronica "electronic support measures (ESM / emitter targeting)" system; chaff dispensers; and armament including antiship missiles, such as two Marte 2s or four Sea Skuas. Another proposal was for an "A-139" utility transport derivative, with a capacity of ten passengers. Neither of these concepts reached the prototype stage.

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[3] AIRBUS HELICOPTER TIGER ORIGINS

* In the early 1980s the German Army wanted to obtain a second-generation anti-armor helicopter, formalized in the "PanzerAbwehr Hubschrauber 2 (PAH-2)" specification. The French Army was also seeking a new anti-armor helicopter under the "Helicoptere Anti-Char (HAC)" specification, and so the two countries decided to collaborate, signing an MOU in 1984.

As is not unusual in collaborative defense efforts the program ran into a few snags, and in fact it was halted completely in mid-1986 to be completely reconsidered. It was re-initiated in March 1987, with the revised program projecting the construction of the PAH-2 / HAC anti-armor variant for both Germany and France, and an escort version, the "Helicoptere d'Appui Protection (HAP)" for the French.

Full-scale development got the green light at the end of 1987. A development contract specifying construction of five prototypes of the "Tiger" or "Tigre", as the gunship was named, was finally awarded on 30 November 1989 to Eurocopter GMBH, a joint company that had formed by Aerospatiale of France and MBB of Germany in 1985 to pursue the program. Eurocopter would later take over all the helicopter activities of both parent firms -- which in turn became major parts of the European Aeronautics Defense & Space (EADS) conglomerate. EADS would become the "Airbus Group" in early 2014, with Eurocopter become Airbus Helicopters; the 21st-century name is used below for simplicity.

During this development phase, the Germans considered obtaining a close-support variant of the Tiger, designated the "Unterstuetzungs Hubschrauber (UHU)", along with the PAH-2 anti-armor variant, but finally decided to acquire a multi-role variant for the anti-armor, close support, and escort roles. This multi-role machine was designated the "Unterstuetzungs Hubschrauber Tiger (UHT)".

German UHT Tiger gunship helicopter

The French stayed with their HAC and HAP configurations for the time being. As if this name game wasn't bewildering enough, for a time the French also referred to the HAP as the "Gerfaut (Gyrfalcon)", but the name was formally abandoned in 1993, probably because it was confusing, and now all the variants are known as "Tigers". To add to the confusion, the HAC version was canceled later in the development program, as discussed below.

The first Tiger prototype flew on 27 April 1991. The second prototype followed in April 1993, with the three remaining prototypes following in November 1993, December 1994, and February 1996. The first three machines were basically aerodynamic and system test machines, but the fourth was the French HAP configuration prototype and the fifth was the German UHT configuration prototype.

The first prototype was grounded for static fatigue testing in early 1996. The second prototype was brought up to HAP configuration in 1996, and the third prototype was brought up to UHT configuration in 1997. The fourth prototype was lost in a crash in Australia in early 1998 while being evaluated by the Australian Army.

The initial production contract was signed on 20 June 1997. The first production machine, a German UHT variant, was rolled out in March 2002. The first production French HAP escort variant performed its initial flight on 26 March 2003. Initial service deliveries of the UHT and HAP were in the spring of 2005.

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[4] TIGER DETAILS & VARIANTS

* The Tiger is of conventional helicopter gunship configuration, with the two crew sitting in tandem, though somewhat unusually the pilot is in the front seat and the gunner is in the back. The seats are offset to opposite sides of the centerline to improve the view forward for the gunner in back. The airframe is largely made of composites.

Both cockpits have twin color MFDs, which show sensor imagery, flight and system status, and a "Eurogrid" moving-map display. The Tiger is fitted with a GPS-INS navigation system with ring-laser gyros, has Doppler radar for low-altitude operation, and a set of low-speed air-data probes. Several processors support the display and navigation systems Avionics systems are linked by a MIL-STD 1553B databus. A self-defense suite is fitted, featuring radar, missile, and laser warning systems, as well as chaff-flare dispensers.

The HAP and UHT Tigers are powered by twin Rolls-Royce / Turbomeca MTR390 turboshaft engines providing 958 kW (1,285 SHP) each, driving a four-blade main rotor and a three-blade tail rotor. The Tiger has fixed tailwheel landing gear with single wheels, a tailplane with fixed endplates, and stub wings with a total of four stores pylons.


   AIRBUS HELICOPTER TIGER:
   _____________________   _________________   _______________________
 
   spec                    metric              english
   _____________________   _________________   _______________________

   main rotor diameter     13.0 meters         42 feet 8 inches
   tail rotor diameter     2.7 meters          8 feet 10 inches
   fuselage length         14 meters           45 feet 11 inches
   footprint length        15.8 meters         51 feet 10 inches
   height (tail rotor)     4.32 meters         14 feet 2 inches
   height (rotor head)     5.2 meters          17 feet 1 inch

   empty weight            3,060 kilograms     6,747 pounds
   max loaded weight       6,000 kilograms     13,227 pounds

   maximum speed           320 KPH             200 MPH / 174 KT
   hover ceiling           2,000 meters        6,560 feet
   range                   725 kilometers      450 MI / 390 NMI
   endurance               > 3 hours
   _____________________   _________________   _______________________

   Hover ceiling is out of ground effect.

The different Tiger variants have the same basic airframe, but differ in sensors and armament:

Both Germany and France plan to acquire 80 machines, with the Germans buying 80 UHTs, while the French originally planned a buy of 70 HAPs and 10 HACs. At the outset of the program, both countries planned to buy hundreds of Tigers, but defense requirements have changed since the machine's development was put into motion. Neither Germany nor France are likely to obtain more than 120 Tigers each, and they may not even acquire 80.

* Australia was the first export customer, having ordered 22 "Tiger Armed Reconnaissance Helicopters (ARH)" or "Aussie Tigers" in December 2001 after a tough international competition. The Australian variant is a multi-role machine, similar in general configuration to the French HAP Tiger, with the 30-millimeter nose gun and rooftop Strix sight, but with enhancements. It is fitted with US Hellfire II anti-armor missiles, and so the Strix sighting system incorporates a laser target designator to target the missiles.

Aussie Tiger gunship firing Hellfire

The Aussie Tiger is also fitted with an uprated MTR390E powerplant for "hot and high" operation, and features minor changes to avionics, such as radios specified to Australian Army needs. Initial deliveries were in late 2004. Of the 22 machines to be delivered, four were shipped from France and the other 18 were assembled in Australia. Deliveries were completed in 2011. It has since been qualified with the BAE Systems "Advanced Precision Kill Weapon System (APKWS)". APKWS is a standard 70-millimeter unguided rocket, fitted with a laser seeker; the Aussies plan to buy seekers and fit them to existing inventories of 70-millimeter rockets.

Airbus Helicopter then advanced a similar variant, the "HAD", again much like the HAP but with anti-armor missile capability, plus improved armor, a new rooftop sight, and the uprated MTR390E powerplants. In September 2003, the Spanish government announced a buy of 24 HAD Tigers. Spain became a full member of the Tiger group, with a stake in the program and sharing of manufacturing responsibilities. The Spanish HAD Tigers were to carry Spike-ER anti-armor missiles and Mistral AAMs. Since Spain had an outstanding need for helicopter gunships, six HAP Tigers were delivered ahead of time, to be later upgraded to HAD configuration.

The French Army also found the HAD more attractive than the HAC variant, and so adjusted their order for Tigers from 70 HAP and 10 HAC to 40 HAP and 40 HAD machines. Armament includes Hellfire anti-armor missiles -- delays in the Trigat program drove the French to use the Hellfire, which had been qualified for the Aussie Tiger program -- and Mistral AAMs. Initial flight of the first of two HAD prototypes was in December 2007. Deliveries for HADs to both Spain and France began in 2013; shipments of the "Block 2" HAD began in 2015, this subvariant featuring digital communications, improved targeting accuracy, combat external tanks, and navalizations for shipboard use. Seven more HADs were ordered by the French Army in late 2015, bringing the total French fleet to 67 Tigers.

French forces put their Tigers to good use in Afghanistan, as well as in support of the Libyan uprising in 2012. German Tigers were committed to Afghanistan, following an upgrade to fit them for service with the "Afghanistan Stabilization German Army Rapid Deployment (ASGARD)" force with uprated engines, sand filters, improved defensive countermeasures, along with a mission data recorder and communications to support multinational operations. The first of a dozen upgraded ASGARD Tigers, as they were known, was deployed in late 2012, with the last of the batch being handed over in 2014.

Airbus is now in the definition phase of a "Tiger Mark 3" update, working with users to see what features they would like in an improved Tiger, with a particular focus on life-cycle cost. The Mark 3 is seen as both the basis of new manufacture, and upgrades of existing machines. No schedule for the Tiger Mark 3 is available just yet.

* Since the Tiger variant history is so confusing, it's worthwhile to summarize the variants:


   _____________________________________________________________________

   type  user  number  notes
   _____________________________________________________________________

   PAH-2  de      -    Initial German anti-armor variant, canceled.
   UHU    de      -    Initial German escort variant, canceled.
   HAC    fr      -    Initial French anti-armor variant, canceled.
   _____________________________________________________________________

   HAP    fr     40    30-mm cannon, roof sight, Mistral.
   UHT    de     80    No turret, mast-mounted sight, HOT, Stinger.
   ARH    au     22    30-mm cannon, roof sight, Hellfire.
   HAD    fr     47    30-mm cannon, roof sight, Hellfire, Mistral.
   HAD    es     24    30-mm cannon, roof sight, Spike-ER, Mistral.
   _____________________________________________________________________

   TOTAL        213
   _____________________________________________________________________

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[5] COMMENTS, SOURCES, & REVISION HISTORY

* As concerns copyrights and permissions for this document, all illustrations and images credited to me are public domain. I reserve all rights to my writings. However, if anyone does want to make use of my writings, just contact me, and we can chat about it. I'm lenient in giving permissions, usually on the basis of being properly credited.

* Sources include:

Data pages on the FLUG REVUE website were also consulted.

* Revision history:

   v1.0.0 / 01 mar 03 
   v1.0.1 / 01 may 03 / Review & polish.
   v1.0.2 / 01 mar 05 / Review & polish.
   v1.0.3 / 01 mar 07 / Review & polish.
   v1.0.4 / 01 apr 07 / Added comments on French use of Hellfire.
   v1.0.5 / 01 mar 09 / Review & polish.
   v1.0.6 / 01 feb 11 / Review & polish.
   v1.0.7 / 01 jan 13 / Review & polish.
   v1.1.0 / 01 dec 14 / Final deliveries of ASGARD Tigers.
   v1.1.1 / 01 nov 16 / Review & polish.
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