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Zlin Z 42

The Zlín Z 42 is a training aircraft produced by Moravan Otrokovice, a company based in Czechoslovakia.

It’s a single-engine, two-seater plane.

Among the company’s lineup, the Z 142, a more advanced model, is the most popular variant.

Moravan has introduced a new series of light aircraft to succeed the successful Zlín Trener series of tandem aerobatic trainers.

This new series includes aircraft with side-by-side seating, featuring the two-seat trainer Zlín Z 42 and the four-seat trainer/tourer Zlín Z 43.

The Z 42 aircraft successfully completed its first flight on October 17, 1967, and received airworthiness certification on September 7, 1970.

The centre section of the fuselage is built with welded steel tubes, covered by sheet metal and fibreglass panels.

The tail cone employs monocoque construction methods.

The empennage is constructed from sheet metal.

In contrast, the wings feature a two-spar design and are entirely metallic.

The aircraft is equipped with fixed tricycle-type landing gear, including a steerable nosewheel.

The aircraft, specifically designed for aerobatic instruction, is certified to endure manoeuvring load factors of +6.0 and -4.0.

It features complete inverted fuel and oil systems for prolonged inverted flight.

The Z 42 is powered by a Walter inverted six-cylinder engine with a power output of 134 kW (180 hp).

The modified Zlín Z 42M, which first flew in November 1972, sports a redesigned tail from the Z 43 model and a constant speed propeller, replacing the original Z 42’s variable pitch propeller, enabling pitch control by the pilot.

When early Z 42 aircraft were updated with this new propeller, they were redesignated as Z 42 MU.

Development progressed, culminating in the Zlín Z 142 aircraft.

This model boasted a marginally larger two-seat configuration, drawing inspiration from the Z 42’s design.

It also featured an upgraded Walter (now LOM) M 337 fuel-injected, inverted six-cylinder, supercharged, air-cooled engine, capable of producing 157 kW (210 hp), which replaced the non-supercharged LOM M137 engine of the Z 42.

The Z-142’s inaugural flight occurred on December 29, 1978.

Further enhancements were implemented in the late 1980s, including the replacement of the inverted inline engine with a four-cylinder, horizontally opposed Lycoming IO-360 engine.

This version, the Z 242L Guru, is distinguishable by its broader cowling to fit the flat-four engine.

In 2021, Zlin introduced an upgraded 242L model named Zeus, featuring a sleeker tail design, a more streamlined cockpit, and improved undercarriage.

Zlín Z 42
The initial production model, equipped with a 180 hp (130 kW) Avia M-137 engine.
Zlín Z 42M
Features a revised dorsal fin and a constant speed propeller.
Zlín Z 142
It has a forward-sliding bubble cockpit canopy and is powered by a 225 hp (168 kW) M-337AK engine.
Zlín Z 242
Powered by a 200 hp (149 kW) engine.
Zlín Z 242L Guru
Zlín Z 242L Zeus
Fernas 142 / ECA Fernas 142
(ECA – Entreprise de construction aéronautique)
An Algerian-licenced production of the Z 142, which first flew in 1993.


1 or 2

1 passenger or student

7.07 m (23 ft 2 in)

9.11 m (29 ft 11 in); 9.19 m (30 ft) with tip-tanks

2.69 m (8 ft 10 in)
Wing Area

13.15 m² (141.5 sq ft)

NACA 632416.5
Empty Weight

645 kg (1,422 lb)
Max Take-off Weight

970 kg (2,138 lb) normal.

920 kg (2,028 lb) aerobatic
Fuel Capacity

130 L (34 US gal; 29 imp gal) in wing leading edges

1 × Avia M 137 AZ 6-cylinder inverted air-cooled in-line piston engine, 130 kW (180 hp)

2-bladed Avia V 503, 2 m (6 ft 7 in) diameter, fully automatic constant-speed propeller

Maximum Speed

226 km/h (140 mph, 122 kn) TAS (aerobatic TOW) at 600 m (1,969 ft) ISA
Cruise Speed

215 km/h (134 mph, 116 kn) TAS at 600 m (1,969 ft) ISA
Stall Speed

89 km/h (55 mph, 48 kn) flaps down & power off
Never Exceed Speed

315 km/h (196 mph, 170 kn)

530 km (330 mi, 290 nmi) standard fuel
Ferry Range

1,200 km (750 mi, 650 nmi) with wingtip fuel tanks
Service Ceiling

4,250 m (13,940 ft)
G Limits

+3.8/-1.5 normal; +6/-3.5 aerobatic
Rate of Climb

5.2 m/s (1,020 ft/min)
Wing Loading

74 kg/m² (15 lb/sq ft) normal; 70 kg/m² (14 lb/sq ft) aerobatic

0.138 kW/kg (0.084 hp/lb) normal

0.143 kW/kg (0.087 hp/lb) aerobatic
Take-off Run to 15 m (49 ft)

380 m (1,247 ft)
Landing Run from 15 m (49 ft)

410 m (1,345 ft)

VHF radio and IFR instrumentation are optional.

Zlins, Typenschau No.3- Detlef Billig.

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