· ICAO24 c81a1e· last seen 19d ago

ZK-SPO is a Glasair Aviation Glasair, a single-engine piston aircraft. SkyMeter has tracked 84 flights totalling 25 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is NZFI to NZFI. Service window in our records spans 421 days. Of those flights, 10 (11.9%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. 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
84
all time
FLOWN HOURS
25
tracked time
📍
AIRPORTS VISITED
10
unique
📡
CALLSIGNS
2
15 routes
📅
SERVICE PERIOD
5/31/2025 → 7/27/2026
first → last
INCIDENT RATE
11.9%
10 flagged

Top routes

By flight count

8
20
3
2
2
1
1
1
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 42 operations of ZK-SPO

42
7/27/2026
11m
No alerts
7/26/2026
18m
No alerts
7/26/2026
7m
No alerts
7/26/2026
19m
No alerts
7/12/2026
12m
No alerts
7/11/2026
11m
No alerts
7/11/2026
10m
No alerts
7/11/2026
1h 6m
△ Low approach-stability score
7/11/2026
34m
No alerts
7/2/2026
12m
No alerts
7/2/2026
7m
No alerts
6/22/2026
35m
No alerts
6/14/2026
11m
No alerts
6/13/2026
57m
No alerts
6/13/2026
2m
No alerts
6/13/2026
10m
No alerts
6/12/2026
32m
No alerts
6/4/2026
12m
No alerts
6/4/2026
30m
No alerts
5/20/2026
21m
△ Low approach-stability score
5/3/2026
24m
No alerts
5/3/2026
24m
No alerts
4/11/2026
20m
No alerts
4/8/2026
12m
No alerts
3/30/2026
11m
No alerts
2/9/2026
19m
No alerts
2/1/2026
11m
No alerts
1/14/2026
15m
No alerts
1/14/2026
4m
△ Low approach-stability score
12/26/2025
14m
No alerts
11/22/2025
17m
No alerts
10/25/2025
10m
No alerts
10/10/2025
10m
No alerts
10/10/2025
11m
No alerts
10/10/2025
15m
No alerts
10/8/2025
18m
No alerts
7/13/2025
19m
△ Low approach-stability score
7/13/2025
9m
No alerts
6/21/2025
18m
△ Low approach-stability score
6/21/2025
8m
No alerts
5/31/2025
12m
No alerts
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