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    Douglas A-4 Skyhawk Light Attack / Multirole / Carrier-Borne Fighter (1956)

    Douglas A-4 Skyhawk Light Attack / Multirole / Carrier-Borne Fighter (1956)

    The Douglas A-4 Skyhawk naval jet fighter saw decades of service worldwide with nearly 3,000 aircraft produced.




    Staff Writer (2/2/2015): The A-4 Skyhawk (nicknamed "Heinemann's Hot Rod" and the "Scooter") came about as a private venture when the Douglas corporation was seeking to replace the aging AD Skyraider (A-1 Skyraider) piston-engine aircraft. The successor to the A-1 was originally another piston-engine alternative known by the designation as the A-2D Skyshark, but powerplant issues shelved the project altogether. During this time, the A-4 Skyhawk was already in development as a small, lightweight jet-powered attack aircraft to which the US Navy took a fair amount of interest in.

    Ed Heinemann was the chief designer of the A-4 Skyhawk while working at Douglas, which led to the development of nine Skyhawk prototypes designated as the XA4D-1 - the first of which flew on September in 1956. From there, the Pratt & Whitney J65-powered craft would go into full operational production as the A-4A Skyhawk.

    The Pratt & Whitney powerplant was a British-designed and licensed Armstrong Siddeley Sapphire turbojet. The system was capable of producing over 8,000lbs or standard thrust (no afterburner was integrated to the engine) and the base powerplant could be found on the initial three A-4's - the A, B and C models.

    The A-4E Skyhawk model stood as a vast improvement over previous models and served the US Navy featuring an overall heavier airframe but a Pratt & Whitney J52 powerplant. A successive model for the US Navy, the A-4F, proved to be the last model and featured further improvements on the A-4E, most notably the avionics-housing "hump" visible in the image above just behind the cockpit and running along the dorsal spine of the fuselage.

    The United States Marine Corps took orders for the "Ultimate Skyhawk" in the A-4M Skyhawk II. This model featured an all-new enlarged canopy for improved pilot visibility. It also featured an increased MTOW capacity (nearly double of what the base A-4 could do) allowing for an additional array of weaponry to be fitted. The A-4M model was fitted with an even more powerful J52-P-408 powerplant that increase range and overall speed.

    Export figures were decent, with Argentina becoming the initial customer. Others would soon follow including Israel, Malaysia, Kuwait, Brazil and Singapore. In the end, the A-4 Skyhawk proved its worth with decades of faithful service to the United States with the Navy and the Marine Corps both putting the aircraft through a rigorous pacing. The single powerplant was more than suitable for the role that the A-4 was designed to fulfill and the diminutive size when compared to other carrier aircraft was a good fit for carrier storage.





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    Technical Specifications:
    Douglas A-4 Skyhawk
    Light Attack / Multirole / Carrier-Borne Fighter


    PRIMARY

    Focus Model: Douglas A-4M Skyhawk II (Super Skyhawk)
    Origin: United States
    Manufacturer: McDonnell Douglas - USA
    Service Entry: 1956
    Production Total: 2,960
    Crew: 1


    STRUCTURAL

    Length: 40.26 ft (12.27 m)
    Width: 27.49 ft (8.38 m)
    Height: 14.99ft (4.57 m)
    Weight (Empty): 10,465 lb (4,747 kg)
    Weight (MTOW): 24,504 lb (11,115 kg)


    POWER

    Powerplant: 1 x Pratt & Whitney J52-P-408 non-afterburning turbojet developing 11,200 lb of thrust (standard).


    PERFORMANCE

    Maximum Speed: 645 mph (1,038 kmh; 560 kts)
    Maximum Range: 339 miles (545 km)
    Service Ceiling: 38,698 ft (11,795 m; 7.3 miles)
    Rate-of-Climb: 10,300 feet-per-minute (3,139 m/min)


    ARMAMENT

    Hardpoints: 5
    Armament Suite:
    2 x 20mm Cannons (in wing roots)

    Mission-specific weapons may include any of the following:

    AIM-9 Sidewinder
    Bullpup Air-to-Surface Missile
    AGM-65 Maverick Air-to-Surface Missile

    Max ordinance for the A-4 Skyhawk is reported to be 9,155lbs (4,155 kg).


    VARIANTS
    XA4D-1 - Prototype Designation of which nine produced.


    A4D-1 - First Production Models

    A-4A

    A-4B

    A-4C

    A-4E - Improved throughout; Heavier airframe powered by a Pratt & Whitney J52 powerplant.

    A-4F - Final Navy Version Skyhawk featuring noticeable "hump" on airframe spine housing additional avionics equipment.

    A-4M Skyhawk II - United States Marine Corps Version featuring enlarged canopy for increased visibility, increased take-off weight and more powerful J52-P-408 powerplant.

    TA-4F - Two-seat Navy trainer Variant

    A-4P - Argentinian Export Model

    A-4Q - Argentinian Export Model

    A-4AR "Fightinghawks" - Argentinian Export Model based on A-4M variant with updated avionics, HUD system and ARG-1 radar system.

    A-4H - Israeli Export Model based on A-4E variant.

    A-4N - Israeli Export Model based on A-4M variant.

    A-4S - Singapore Export Model

    A-4K - New Zeland Export Model with upgraded HUD, avionics, twin-CRT displays and HOTAS.

    T/A-4KU - Kuwaiti Export Model (sold to Brazil and stationed on Sao Paulo aircraft carrier).


    OPERATORS
    Argentina, Brazil, Indonesia, Israel, Singapore, Malaysia and the United States of America.