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The Convair 990 Coronado is an American narrow-body four-engined jet airliner produced between 1961 and 1963 by the Convair division of American company General Dynamics. It was a stretched version of its earlier Convair 880 produced in response to a request from American Airlines: the 990 was lengthened by 10 ft (3.0 m), which increased the number of passengers from between 88 and 110 in the 880 to between 96 and 121. This was still fewer passengers than the contemporary Boeing 707 (110 to 189) or Douglas DC-8 (105 to 173), although the 990 was 25–35 mph (40–56 km/h) faster than either in cruise.

American Airlines asked Convair to design an aircraft for coast-to-coast flights, able to fly nonstop from New York City to Los Angeles against the wind. They wanted a larger passenger capacity than the 880, which was the smallest of the first-generation U.S. jet airliners. It was known as the Convair 600 and was redesignated the Convair 990 in the month of its first flight. The 990 began flight testing on January 24, 1961. One change from the 880 was the large anti-shock bodies on the upper trailing edge of the wings, to increase the critical Mach by reducing transonic drag. The inboard shock bodies, which were larger, were also used for additional fuel tankage. Later during the design period, Convair modified the design to include fuel in the outboard pods as well, but during the initial test flights the extra weight caused the outboard engines to oscillate in certain conditions. The pods were redesigned once more and shortened by 28 inches (710 mm), causing increased drag. The inner set of pods were used to route the fuel-dump tubes from the fuel tanks, terminating in a prominent outlet

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Convair 990 Coronado

General characteristics

Crew: 4 (+ cabin crew)
Capacity: up to 149 passengers
Length: 139 ft 9 in (42.60 m)
Wingspan: 120 ft (37 m)
Height: 39 ft 6 in (12.04 m)
Wing area: 2,250 sq ft (209 m²)

Powerplant

Empty weight: 133,000 lb (60,328 kg)
Maximum zero-fuel weight: 160,000 lb (72,575 kg)
Max takeoff weight: 253,000 lb (114,759 kg)
Maximum landing weight: 202,000 lb (91,626 kg)
Powerplant: 4 × General Electric CJ805-23B turbofan engines, 16,050 lbf (71.4 kN) thrust each aft=fan engines

Specifications

Maximum speed: 540 kn (620 mph, 1,000 km/h) at 20,000 ft (6,096 m) at 200,000 lb (90,718 kg) AUW
Maximum speed: Mach 0.871
Cruise speed: 484 kn (557 mph, 896 km/h) / M0.84 at 35,000 ft (10,668 m)
Range: 3,302 nmi (3,800 mi, 6,115 km) with 104,373 lb (47,343 kg) usable fuel, 25,770 lb (11,689 kg) payload and 18,000 lb (8,165 kg) reserve fuel
Service ceiling: 41,000 ft (12,000 m)
Take-off run: 9,800 ft (2,987 m) at MTOW (SR-422B Field length)
Landing run: 5,400 ft (1,646 m) at 170,000 lb (77,111 kg) AUW (SR-422B Field length)

Armament

None:

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The "Camel" may be regarded as the prototype of the Consolidated response to the USAAS's 1924 requirement for a new primary trainer. In the early summer of 1924.

Convair 990 Coronado

When the major airlines retired their Convair 990s, they found a second life on charter airlines. Spantax of Spain had a large fleet until the mid-1980s, as did Denver Ports of Cal

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The 990 did not meet the specifications promised, and American Airlines reduced its order as a result.

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Convair 990 Coronado

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Convair 990 Coronado

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Convair 990 Coronado

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