· ICAO24 4b4e21· last seen 2d ago

HB-2426 is a Laversab LAE-1, likely a private operator. SkyMeter has tracked 50 flights totalling 149 hours of airtime via ADS-B. The most frequent segment is LSZF to LSZF. Service window in our records spans 420 days. Of those flights, 2 (4.0%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Laversab LAE-1 has a maximum takeoff weight of 55 lb, light wake category.

About the Laversab LAE-1

The Laversab LAE-1 is a lightweight electric unmanned aircraft designed specifically for ADS-B and transponder system testing, representing a specialized niche in aviation infrastructure maintenance. Developed by Laversab, a company known for avionics test equipment, the LAE-1 serves as a flying calibration platform that allows ground-based surveillance systems to verify their accuracy against a known airborne target with precise position reporting. Weighing just 55 pounds at maximum takeoff weight, this small drone operates at low speeds and altitudes to simulate aircraft targets for radar and ADS-B receiver site commissioning and periodic validation.

The concentration of Swiss HB- registrations reflects the type's adoption by flight inspection service providers in Europe, where regulatory requirements mandate regular calibration of air traffic surveillance infrastructure. Unlike traditional flight inspection aircraft that carry complex avionics suites and require professional flight crews, the LAE-1 offers a cost-effective alternative for specific testing scenarios where a simple, repeatable target is needed. Its electric propulsion system enables quiet operation and eliminates the logistical complexity of fuel handling during extended ground-based testing campaigns at remote navigation aid sites.

SkyMeter has tracked flights across airframes and operators, covering routes.

FLIGHTS
50
all time
FLOWN HOURS
149
tracked time
📍
AIRPORTS VISITED
10
unique
📡
CALLSIGNS
1
12 routes
📅
SERVICE PERIOD
6/19/2025 → 8/14/2026
first → last
INCIDENT RATE
4.0%
2 flagged

Top routes

By flight count

6
6
3
2
1
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Laversab LAE-1

Engines
Single Electric
MTOW
55 lb
Wake category
L

Recent flights

Newest 32 operations of HB-2426

32
8/14/2026
43m
No alerts
8/14/2026
8m
No alerts
8/14/2026
3h 23m
No alerts
8/14/2026
57m
No alerts
8/13/2026
1h 46m
No alerts
8/13/2026
1h 29m
No alerts
8/13/2026
3h 45m
No alerts
6/27/2026
5h 17m
No alerts
6/15/2026
3h 24m
No alerts
6/13/2026
3h 52m
△ Low approach-stability score
6/7/2026
44m
No alerts
6/1/2026
3h 56m
No alerts
5/21/2026
1h 46m
No alerts
5/21/2026
33m
No alerts
5/17/2026
3h 39m
No alerts
5/9/2026
1h 37m
No alerts
5/9/2026
36m
No alerts
5/9/2026
3h 30m
No alerts
5/2/2026
3h 39m
No alerts
5/2/2026
3h 39m
No alerts
4/21/2026
3h 19m
No alerts
4/9/2026
3h 18m
No alerts
3/24/2026
3h 13m
No alerts
3/24/2026
3h 13m
No alerts
3/20/2026
16m
No alerts
3/20/2026
1h 40m
No alerts
8/24/2025
2h 12m
No alerts
8/24/2025
1h 23m
No alerts
8/17/2025
4h 5m
No alerts
7/23/2025
4h 5m
No alerts
6/19/2025
3h 17m
No alerts
6/19/2025
3h 17m
No alerts
© SkyMeter · All flight data subject to ODbL attribution