LTV (Vought) A-7 Corsair II
From Scramble - The Aviation Magazine
|LTV (Vought) A-7E Corsair II|
|First Flight||September 27, 1965 (A-7A)|
|Length||14.06 m||46 ft 1.5 inch|
|Wingspan||11.81 m||38 ft 9 inch|
|Height||4.90 m||16 ft 0.75 inch|
|Wing area||34.8 m²||375 ft²|
|Empty||9,033 kg||19,915 lb|
|Maximum takeoff weight||19,050 kg||29,040 lb|
|Capacity||6,800 kg (15,000 lbs)|
|Engines||one Allison TF41-A-2|
|Thrust||64.5 kN (each)||14,500 lbf (each)|
|Maximum speed||1,123 km/h||606 kts|
|Operational radius||1,150 km||621 nm|
|Service ceiling||12,800 m||42,000 ft|
|Rate of climb||76 m/s||15,000 ft/min|
|Avionics||Texas Instruments AN/APQ-126 multi-mode radar|
|Armament||One General Dynamics (General Electric) M61 Vulcan 20 mm gun, two AIM-9 Sidewinder air-to-air missiles. Air-to-ground options include Mk.80 series LDGP bombs, rocket pods and the B61 nuclear weapon.|
The A-7 was developed by Ling-Temco-Vought in response to the VAL Light Attack Aircraft project of the US Navy. Based on a Chance Vought F-8 Crusader airframe, the prototype flew February 27, 1965. Initial models were rather underpowered, resulting in fuel and weapon load limitations. This was finally rectified by introduction of the Allison TF41 turbofan, a license built version of the Rolls-Royce Spey turbofan. From 1966, the US Navy received 991 Corsairs, which logged more than 4 million flight hours and 410.000 carrier landings. 54 aircraft were lost in combat. In the US Navy, the A-7 was finally replaced by the more capable F/A-18 Hornet, while the US Air Force replaced its A-7Ds with A-10 Thunderbolt IIs.
Initial production version, armed with two Colt Mk. 12 20 mm guns with 680 rounds. Powered by Pratt & Whitney TF30-P-6 turbofan rated at 50,5 kN. The NA-7A was A-7A configured for permanent testing. MTOGW limited, 199 delivered to US Navy.
The A-7C was initially intended to be a two-seat training version of the A-7B. When this plan was not pursued, the A-7C designation was used for an interim model with most of the A-7E systems, armed with the M61 20 mm gun but lacking the TF41-A-2 intended for the A-7E. Instead, it remained powered by the TF30, in its P-5 variant. 67 delivered to US Navy. By inserting a 46 cm fuselage plug, a number of A-7A (21), A-7B (24) and A-7C (36) airframes were converted to two-seat trainers and designated TA-7C. In 1984 49 airframes were re-engined with the TF41-A-402 and upgraded to A-7E equivalent. The NA-7C was used for test purposes.
Ground attack model for the US Air Force's Tactical Air Command, powered by the TF41-A-1 turbofan (license built RB.168-62 Spey 25) rated at 64,5 kN. Avionics upgrades include a Projected Map Display, radar altimeter, AN/APQ-126 radar, GEC-Marconi AN/AVQ-7(V) HUD and McDonnell Douglas Escapac 1C2 ejection seat. The gross weight of the A-7D is a little more than twice that of the A-4E but is significantly less than that of the A-6E. 459 delivered to US Air Force. Designation GA-7D used for ground instruction airframes.
Proposed supersonic version - initially designated A-7D Plus - with 121 cm fuselage stretch, F100-PW-220 turbofan engine (rated at 129 kN), larger tail, new navigation system and Vought AN/AAR-49 Low Altitude Night Attack system. Two airframes built before project was cancelled. Designation KA-7F was reserved by US Navy for proposed tanker version.
Proposed version, based on the A-7E. The Swiss Air Force ordered F-5E Tiger IIs instead.
Designation for 30 airframes, converted for the US Air Force Air National Guard as two-seat precision strike aircraft. By integrating the Pave Penny targeting pod, the A-7K was capable of autonomously delivering Laser Guided Bombs. First flight January 1981.
Converted TA-7C airframe, used for Electronic Warfare training. Six aircraft delivered to US Navy's VAQ-34.
Export model for Portuguese Air Force, based on converted 44 A-7A/B/C airframes. Powered by TF30-P-408 engine (as used in the A-7C) and armed with the Colt 20 mm guns, but equipped with A-7E avionics. The two seat conversion trainer designated TA-7P.
- United States Air Force
- United States Navy
- Hellenic Air Force
- Portuguese Air Force (former US Navy a/c)
- Royal Thai Navy