SKY WEST AVIATION INC TRUSTEE· ICAO24 a4aa35· last seen Apr 2026

N4ZG is a Glasair Aviation Glasair, a single-engine piston aircraft operated by SKY WEST AVIATION INC TRUSTEE. SkyMeter has tracked 10 flights totalling 2 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is 00FL to KOBE. Service window in our records spans 240 days. The Glasair Aviation Glasair has a maximum takeoff weight of 2,100 lb, light wake category.

About the Glasair Aviation Glasair

The Glasair is a family of high-performance composite kit aircraft designed by Tom Hamilton in the early 1980s and produced by Glasair Aviation (formerly Stoddard-Hamilton Aircraft). Built primarily from fiberglass and foam sandwich construction, the Glasair pioneered the use of pre-molded composite components in the homebuilt market, dramatically reducing construction time compared to traditional tube-and-fabric designs. The original Glasair I was a single-seat speedster, but the line evolved through the two-seat Glasair II and culminated in the Glasair III, a sleek four-seat cross-country machine capable of cruise speeds exceeding 200 knots with a 300-horsepower Lycoming engine.

The Glasair III in particular earned a reputation as one of the fastest fixed-gear piston singles available to homebuilders, rivaling certified aircraft costing several times more. The design's clean aerodynamics, retractable gear option (Glasair RG variants), and efficient laminar-flow wing made it a favorite among builders seeking both speed and cross-country capability. While construction requires moderate skill and typically 1,500 to 2,000 hours of build time, the Glasair's performance envelope and relatively forgiving handling characteristics have made it a staple of the experimental aircraft community for over four decades.

SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
10
all time
FLOWN HOURS
2
tracked time
📍
AIRPORTS VISITED
7
unique
📡
CALLSIGNS
2
5 routes
📅
SERVICE PERIOD
08/17/2025 → 04/14/2026
first → last
INCIDENT RATE
0.0%
0 flagged

Top routes

By flight count

2
1
X25 KLAL
1

Flight numbers

Most-flown by this airframe

2

Aircraft specifications

Glasair Aviation Glasair

Engines
Single Piston
Vref (approach)
70 kt
MTOW
2,100 lb
Wake category
L

Recent flights

Newest 5 operations of N4ZG

5
04/14/2026
21m
No alerts
04/14/2026
18m
No alerts
11/13/2025
7m
No alerts
11/13/2025
4m
No alerts
08/17/2025
10m
No alerts
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