Glasair Aviation Glasair (GLST)
ICAO GLST Light Piston

Glasair Aviation Glasair

Single Piston

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 247 flights across 93 airframes and 84 operators, with FREEMAN MATTHEW D the largest observed operator.

ACTIVE AIRFRAMES
93
last 7 days
🏢
OPERATORS
84
unique airlines
📊
FLIGHTS
247
tracked
AVG DURATION
44m
per flight
INCIDENT RATE
6.9%
17 flagged

Safety in context

The incident rate counts flights with ANY safety event detected by SkyMeter: go-arounds (a routine response, not a failure), unstable-approach gate flags (advisory thresholds), rejected takeoffs (the system working as designed), and runway events. It is NOT an accident rate or fatality rate. For accident statistics, refer to the NTSB Aviation Accident Database (USA) or the Aviation Safety Network. See methodology for what each event type measures.

Performance

Speed envelope & approach

Vref
70 kt
Vref range
Vmo
Mmo
Vne
220 kt
Vno
200 kt
Vs1 (clean)
58 kt
Vs0 (landing)
50 kt
Vfe
100 kt
Approach category

Dimensions

Airframe geometry

Wingspan
Length
Tail height
Wheelbase
Gear width
Wake category
L

Weight & identification

Operating limits

MTOW
2,100 lb
MALW
Manufacturer model
Glasair
FAA designator
Registered

Safety profile

Flagged flights · last 7 days

Family

Related variants

1

Recent incidents

Flagged flights of GLST

20
8/10/2026
25m
△ Low approach-stability score
8/9/2026
28m
△ Low approach-stability score
8/8/2026
32m
△ Low approach-stability score
8/8/2026
1h 24m
△ Low approach-stability score
8/7/2026
21m
△ Low approach-stability score
8/6/2026
25m
△ Low approach-stability score
8/5/2026
22m
△ Low approach-stability score
8/5/2026
22m
△ Low approach-stability score
8/4/2026
2h 22m
△ Low approach-stability score
8/4/2026
1h 19m
△ Low approach-stability score

Recent flights

Real flights of GLST · airborne ≥ 20 min

30
8/11/2026
54m
No alerts
8/11/2026
45m
No alerts
8/11/2026
4h 45m
No alerts
8/11/2026
1h 58m
No alerts
8/11/2026
21h 12m
No alerts
8/11/2026
33m
No alerts
8/10/2026
2h 50m
No alerts
8/10/2026
55m
No alerts
8/10/2026
37m
No alerts
8/10/2026
30m
No alerts
8/10/2026
1h 1m
No alerts
8/10/2026
20m
No alerts
8/10/2026
21m
No alerts
8/10/2026
25m
No alerts
8/10/2026
47m
No alerts
8/10/2026
36m
No alerts
8/10/2026
1h 28m
No alerts
8/10/2026
25m
△ Low approach-stability score
8/10/2026
40m
No alerts
8/10/2026
7h 15m
No alerts
8/10/2026
1h 13m
No alerts
8/10/2026
33m
No alerts
8/10/2026
1h 17m
No alerts
8/9/2026
1h 21m
No alerts
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© SkyMeter · All flight data subject to ODbL attribution · Tracking window: 7 days (free tier)