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Scooters: One Down, One Last Remaining...

Talyn

Emissary
Founding Member
military operator of the Scooter (aka A-4 Skyhawk). One of my all-time favorite warbirds.

Argentina has withdrawn the last of its A-4AR/OA-4AR Fightinghawks, modernized versions of the classic A-4 Skyhawk, a type that saw six decades of service in the South American nation. The retirement of the A-4s comes as the Argentine Air Force (locally, the Fuerza Aérea Argentina, FAA) introduces the F-16 as its new fighter, signaling a major overhaul of capabilities.



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The FAA announced the “definitive decommissioning” of the Fightinghawk fleet at Villa Reynolds Air Base in San Luis province yesterday. The base was home to the final Argentine A-4 unit, the 5th Air Brigade (V Brigada Aérea).

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A version that was unique to Argentina, the Fightinghawk emerged from a major modernization program carried out by Lockheed Martin on former U.S. Marine Corps A-4M and OA-4M Skyhawks, which were taken out of storage at the Aerospace Maintenance and Regeneration Center (AMARC). Work on the first batch of aircraft was conducted by Lockheed Martin in Ontario, California, with the remainder upgraded in Córdoba, Argentina.

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Fightinghawk deliveries to Argentina comprised 32 A-4ARs and four OA-4ARs, beginning in the mid-1990s. Interestingly, these upgraded jets were equipped with the same AN/APG-66 radar used in early F-16 variants and were capable of carrying AIM-9M Sidewinder air-to-air missiles.

In the cockpit, the Fightinghawk introduced hands-on-throttle-and-stick (HOTAS) controls, multifunction displays, and a new head-up display. Also installed were an onboard computerized mission-planning system and a new navigation/attack computer. Radar-warning receivers and onboard oxygen-generating equipment rounded out the upgrade package.

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Although significantly more capable than the Vietnam-era Skyhawks they evolved from, the Fightinghawk was never designed as a dedicated air-defense fighter. Nevertheless, it was forced into that role after Argentina retired its last French-built Mirage fighters in 2015.

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The FAA is now in the process of introducing 24 ex-Danish F-16s, in the form of 16 single-seat F-16AMs and eight two-seat F-16BMs. It is also receiving several older Viper airframes for use as training aids and a spare parts source.

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With the retirement of the Fightinghawk, the A-4 remains in active military service only with neighboring Brazil.

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The Brazilian Navy also acquired A-4s for carrier operations, but the retirement of its sole flattop, Sao Paulo, means that the value of its Skyhawks, locally designated AF-1, is increasingly questionable. However, work has been undertaken to upgrade these aircraft to ensure they remain viable, albeit now operating from a land base, at São Pedro da Aldeia.

In all, five single-seaters and a pair of two-seaters were brought up to AF-1B and AF-1C standards, respectively. The seven upgraded Skyhawks received airframe and engine overhauls, a new Elta Systems EL/M-2032 multi-mode radar, a glass cockpit with HOTAS controls, and various other improvements.

In the meantime, however, the A-4 continues to provide good service to private military contractors, who appreciate the jet for its versatility, agility, and relatively low operating costs, meaning that it excels as both an adversary and as a test and training platform. Chief among these operators is the Canadian Top Aces, flying ex-Israeli A-4s, and Florida-based Draken International, which operates a fleet of the jets that previously flew with the Royal New Zealand Air Force.
 

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A4M was a great airplane for years. Love to see how they crammed a radar into that tiny cockpit!

Yea, the A-4 has a pretty tight cockpit.

The screen in the cockpit wasn't a problem but the nose was recontoured to fit a smaller antennae for the APG-66 that was originally used in the F-16s. They also moved the various electronics around in the airframe.

Here's some info on what the various APG-66 versions they used in the A-4's that they stuck the APG-66 in.

The integration of the AN/APG-66 radar into the Douglas A-4 Skyhawk transformed the light attack bomber into a highly capable multi-role fighter. This avionics upgrade was notably utilized during the Project Kahu upgrade for the Royal New Zealand Air Force (RNZAF) and the A-4AR Fightinghawk modernization for the Argentine Air Force.

Key Upgrades and Capabilities

The marriage of the A-4's nimble airframe with the AN/APG-66 pulse-doppler radar (originally designed for the F-16 Fighting Falcon) allowed the aging Skyhawk to stay relevant in modern combat.
  • New Zealand (A-4K / TA-4K Kahu): The RNZAF upgraded their Skyhawks with the AN/APG-66NZ radar. This variant was customized to include a maritime tracking mode for anti-ship operations, along with a Hands-On Throttle and Stick (HOTAS) system, a laser inertial navigation system, and modern heads-up displays.
  • Argentina (A-4AR Fightinghawk): Argentina modernized their A-4M aircraft with the APG-66(V)2 radar (often designated ARG-1). This provided the Argentine fleet with BVR (Beyond-Visual-Range) awareness, advanced air-to-air targeting, and compatibility with modern weaponry.
  • Tactical Versatility: The AN/APG-66 provides reliable medium-range tracking and target detection, enabling the Skyhawk to operate effectively as an adversary aircraft for dissimilar air combat training (DACT) or an all-weather strike platform
 
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