CAC Sabre

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CAC Sabre
The CAC Sabre, also known as the Avon Sabre or CA-27, was a fighter plane, single-seater, single-engine turbo-jet and wing swept monoplane, developed by the company (CAC) Australian Commonwealth Aircraft Corporation aviation in the fifties.

Variant of the North American F-86F Sabre, was mainly used by the Royal Australian Air Force (RAAF), the Australian Air Force, and purchased by some Asian air forces remaining in operational service until the early eighties with the Indonesian (Tentara Nasional Indonesia Angkatan Udara).

Indonesian Air Force CAC Sabre (an Australian designed and built variant of the F-86) in the Air Force Museum, Photo from Wikimedia Commons 

History :
In 1951, the Commonwealth Aircraft Corporation (CAC) obtained the production license from the North American F-86 Sabre. It was decided that the new version would be derived by the F-86F, but would have the engine Rolls Royce Avon RA7, this required an extensive redesign of the fuselage because the new engine was shorter and lighter by about 180 kg but section greater than the General Electric J-47 used on the North American F-86 Sabre. For the new engine it was also necessary to increase by 25% the section of the air intake in the nose and stretch of about 7.6 cm.
The Sabre products by CAC are sometimes referred to as Avon Sabre because of the engine.
The fixed armament of six Browning M2 12.7 mm machine guns of F-86 was replaced by two 30 mm caliber cannons ADEN.
Compared to the F-86 it was increased internal fuel capacity and upgraded the equipment in the cabin.
The CA-26 Sabre prototype (A-94-101) with the command Lieutenant W. Scott of the Royal Australian Air Force flew for the first time August 3, 1953.
The first CA-27 series was delivered to the RAAF August 19, 1954.

Technique :  
The CA-27 Mk 30 was a single-seater monoreattore wing low at 35 degrees arrow with all-metal airframe. The empennage were of the conventional type with tail planes entirely furniture placed in the lower part of the rear fuselage. Besides also the wing the tail and drift were swept.The cart was tricycle with single-wheel main landing falling in the wings and nose gear single wheel falling in the nose. The CA-27, MK 30 was equipped with a pair of airbrakes to the sides of the rear fuselage.

The cab driver had a sliding roof to the rear, the roof had to drop to give the driver the best possible visibility, the ejector seat was to design and manufacture North American.

The turbojet engine was a Rolls-Royce Avon Mk 20 from 3400 kg thrust with frontal air intake.

High speed the plane was inherently stable, that is, leaving the joystick spontaneously tended to level off .

At low speed there was a problem with the plane's maneuverability at high angles of attack due to the arrow with relatively small opening wings. Reducing the speed, the wing tips entered stalled and the plane abruptly cabrava also coming to rotate several times uncontrollably. This phenomenon is a special kind of typical stall of high sweepback aircraft known as "pitch-up" for its effect, is also known as "Sabre Dance" because initially observed the F-86 Sabre.

The fixed armament of the CA-27, MK 30 was constituted by two aircraft cannons ADEN caliber 30 mm with 150 strokes from one to the sides of the muzzle.

The CA-27 MK 30 had a tracking system A-1CM that calculated the distance to the target using data supplied by the radar AN / APG-30 with antenna on top of the engine's air intake.

The CA-27 MK 30 had a pylon under each wing for bombs from 227 kg or 454 kg or external tanks of 756 liters.

Operators :

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