· ICAO24 3d361b· last seen Apr 2026

D-ESSX is a Zlin Aviation Z-37 Cmelak, a single-engine piston aircraft. SkyMeter has tracked 20 flights totalling 20 hours of airtime via ADS-B. The most frequent segment is EDRY to EDRY. Service window in our records spans 178 days. Of those flights, 4 (20.0%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Zlin Aviation Z-37 Cmelak has a maximum takeoff weight of 4,189 lb, light wake category.

About the Zlin Aviation Z-37 Cmelak

The Zlin Z-37 Cmelak is a rugged single-engine agricultural aircraft designed in Czechoslovakia during the 1960s for crop dusting and aerial application work across Eastern Europe. Built by Zlin Aviation (formerly Moravan), the type earned a reputation for reliability in harsh operating conditions, with a low-wing monoplane configuration optimized for slow, stable flight over fields. The Z-37P designation indicates a piston-powered variant, typically equipped with a radial engine producing around 315 horsepower, though numerous subvariants exist with different powerplants and hopper capacities.

Over 700 Z-37 airframes were produced between 1963 and 1984, serving operators from Poland to Iraq, and many remain active in agricultural and utility roles today. The type's name "Cmelak" translates to "bumblebee" in Czech, reflecting its low-altitude buzzing over farmland. While not fast or glamorous, the Z-37 represents Cold War-era utilitarian design at its most practical: simple systems, easy maintenance, and a airframe built to withstand the punishment of low-level ag work.

SkyMeter has tracked flights across airframes and operators, with operations spanning routes.

FLIGHTS
20
all time
FLOWN HOURS
20
tracked time
📍
AIRPORTS VISITED
4
unique
📡
CALLSIGNS
1
4 routes
📅
SERVICE PERIOD
10/31/2025 → 04/28/2026
first → last
INCIDENT RATE
20.0%
4 flagged

Top routes

By flight count

3
6
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Zlin Aviation Z-37 Cmelak

Engines
Single Piston
Vref (approach)
65 kt
MTOW
4,189 lb
Wake category
L

Recent flights

Newest 10 operations of D-ESSX

10
04/28/2026
1h 3m
△ Unstable approach
04/28/2026
1h 17m
No alerts
04/24/2026
55m
No alerts
03/20/2026
32m
△ Unstable approach
03/20/2026
27m
No alerts
11/18/2025
52m
No alerts
11/05/2025
46m
No alerts
11/04/2025
2h 23m
No alerts
11/01/2025
24m
No alerts
10/31/2025
1h 8m
No alerts
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