Zlín Z 26

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Zlin Trener is a family of aircraft that was based on a basic training aircraft, the Z-26.

The original Z-26 was designed in late 1940s and produced in 1946 by Czechoslovakian company Moravan, as a basic trainer to replace the Bücker Jungmann and Bestmann. The Z-26 was a low-winged monoplane of mixed construction, with wooden wings and a welded metal tube fuselage, powered by a single four-cylinder piston engine, the Walter Minor 4-III. It first flew in early 1947, proving superior to the competing Praga 112, and was declared the winner, entering production in 1948.^[1]

Later Z-26 variants were optimised to participate in aerobatic competitions and many were owned by private parties.

Variants

Zlin Z-226T Trener 6 exhibited at the 1957 Paris Air Show

The following variants were progressive improvements on the Z-26:

Z-26 - two-seat primary trainer aircraft. 163 built.^[2]

Z-126 - all-metal wing replaced the wooden wing

Z-226 - more powerful Walter Minor 6-III six-cylinder engine

Z-226A - single-seat aerobatic aircraft

Z-226B - glider tug aircraft

Z-226T - basic training version

Z-326 - 160hp model with an electrically retractable undercarriage^[3]^[4]

Z 526 - with the Walter 6-III six-cylinder engine (equipped with carburetor)

Z-526A - single-seat aerobatic aircraft

Z-526F - Improved version. Avia M137 engine with fuel injector

Z-726 - shorter wing (9.87 meter span), shorter fuselage (7.98 meter length) with two seats. Avia M-137 AZ inverted six-cylinder engine with Fuel injection. All-metal except for fabric-covered aft fuselage. Cantilever low wing with wide-span flaps. Electrically-retractable undercarriage with tailwheeel. Tandem seating.^[5]

Z-726K - variant of the 726 with a supercharged Avia M 337K engine (210 HP) and variable-pitch propeller. Not in serial production

Many sub-variants were also produced, for example the Z-526A and Z-526AFS were aerobatic specials. Production of the Z 26 series ended in the 1970s with the 726.

Operators

Military Operators

Austria: Austrian Air Force
Bosnia and Herzegovina

Air Force and Anti-Aircraft Defence of Bosnia and Herzegovina - One civil aircraft impressed into service in 1995.

Cuba: Cuban Air Force
Czechoslovakia: Czechoslovakian Air Force
East Germany: East German Air Force
Egypt: Egyptian Air Force
Mozambique: Air Force of Mozambique
Republika Srpska: Republika Srpska Air Force - One civil aircraft impressed into service in 1995.
Romania: Romanian Air Force ^ Aeroclubul Romaniei /Romanian Airclub
Vietnam: Vietnam People's Air Force
Yugoslavia: SFR Yugoslav Air Force

Specifications (Z-726)

Data from Jane's All The World's Aircraft 1976-77 ^[6]

General characteristics

Crew: 2 (pilot and passenger; could be flown from either seat)
Length: 7.98 m (26 ft 2 in)
Wingspan: 9.87 m (32 ft 5 in)
Height: 2.06 m (6 ft 9 in)
Wing area: 14.89 m² (160.3 sq ft)
Airfoil: NACA 2418 / NACA 4412
Empty weight: 700 kg (1,543 lb)
Max takeoff weight: 1,000 kg (2,205 lb) for standard flight (940 kg aerobatic)
Powerplant: 1 × Avia M137AZ 6-cyl. inverted air-cooled in-line piston engine, 134 kW (180 hp)
Propellers: 2-bladed

Performance

Maximum speed: 237 km/h (147 mph; 128 kn) at sea level
Cruising speed: 216 km/h (134 mph; 117 kn)
Stall speed: 98 km/h (61 mph; 53 kn)
Range: 440 km (273 mi; 238 nmi) with std fuel
Service ceiling: 4,500 m (14,764 ft)
g limits: 6/-3
Rate of climb: 5 m/s (980 ft/min)
Wing loading: 67.16 kg/m² (13.76 lb/sq ft) std flight wt
Power/mass: 7.46 kg/kW

References

↑ Mourik 2001, p. 61
↑ Taylor 1989, p. 908
↑ Flying: 100. May 1966.
↑ Flying Magazine: 49. August 1961.
↑ Zlin Z 726 Universal, Encyclopedia of The World's Commercial and Private Aircraft p. 248, Crescent Books, New York NY (1981)
↑ Taylor 1976, pp. 33–34.

Mondey, David. Encyclopedia of The World's Commercial and Private Aircraft. Crescent Books, New York NY (1981). p. 248.
Mourik, Dick van. "A to Zlin: An Illustrated History of a Light Aircraft Dynasty". Air Enthusiast, No. 93, May/June 2001. Stamford, UK:Key Publishing. ISSN 0143 5450. pp. 59–65.
Taylor, John W R. (editor). Jane's All The World's Aircraft 1976-77. London: Jane's Yearbooks, 1976. ISBN 0-354-00538-3.
Taylor, Michael J.H. (editor). Jane's Encyclopedia of Aviation. London:Bracken Books, 1989. ISBN 1-85170-324-1.

External links

Media related to Zlín Z-26 at Wikimedia Commons

v t e Aircraft produced by Zlín and Moravan

Savage Cub Z-I Z-II Z-III Z-IV Z-V Z-VI Z-VII Z-VIII Z-IX Z-X Z-XI Z-XII Z-XIII Z-XV Z 20 Z 22 Z 24 Z 25 Z 26 Z 30 Z 37 Z 41 Z 42 Z 43 Z 44 Z 45 Z 46 Z 47 Z 58 Z 50 Z 52 Z 61 Z 90 Z 526

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