· ICAO24 c81a1e· last seen 2d ago

ZK-SPO is a Glasair Aviation Glasair, a single-engine piston aircraft. SkyMeter has tracked 110 flights totalling 39 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is NZFI to NZFI. Service window in our records spans 509 days. Of those flights, 14 (12.7%) 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
110
all time
⏱
FLOWN HOURS
39
tracked time
📍
AIRPORTS VISITED
10
unique
📡
CALLSIGNS
2
16 routes
📅
SERVICE PERIOD
5/31/2025 → 10/23/2026
first → last
⚠
INCIDENT RATE
12.7%
14 flagged

Top routes

By flight count

9
24
5
3
2
1
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 50 operations of ZK-SPO

50
10/23/2026
1h 41m
No alerts
10/4/2026
18m
No alerts
10/3/2026
28m
No alerts
10/3/2026
29m
No alerts
10/3/2026
16m
△ Low approach-stability score
10/1/2026
16m
No alerts
10/1/2026
1h 33m
△ Low approach-stability score
10/1/2026
14m
No alerts
9/29/2026
38m
No alerts
9/24/2026
23m
No alerts
9/24/2026
15m
No alerts
9/5/2026
33m
No alerts
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
7/12/2026
11m
No alerts
7/12/2026
10m
No alerts
7/12/2026
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
6/14/2026
57m
No alerts
6/13/2026
2m
No alerts
6/13/2026
10m
No alerts
6/13/2026
32m
No alerts
6/4/2026
12m
No alerts
6/4/2026
30m
No alerts
6/2/2026
2m
No alerts
5/20/2026
21m
△ Low approach-stability score
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
2/9/2026
19m
No alerts
2/1/2026
11m
No alerts
2/1/2026
11m
No alerts
1/14/2026
15m
No alerts
1/14/2026
4m
△ Low approach-stability score
12/27/2025
14m
No alerts
12/27/2025
14m
No alerts
11/22/2025
17m
No alerts
10/11/2025
10m
No alerts
10/10/2025
11m
No alerts
10/10/2025
15m
No alerts
10/8/2025
18m
No alerts
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