SINDERSON MARK P· ICAO24 a4f9a0· last seen Jun 2026

N42DQ is a Glasair Aviation Glasair, a single-engine piston aircraft operated by SINDERSON MARK P. SkyMeter has tracked 68 flights totalling 63 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is KMIC to KMIC. Service window in our records spans 371 days. Of those flights, 2 (2.9%) 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 kitplanes developed by Glasair Aviation (originally Stoddard-Hamilton) beginning in the early 1980s, representing one of the pioneering success stories in amateur-built aircraft. Designed for builders seeking near-certified performance from a homebuilt, the Glasair series progressed from the original tandem-seat Glasair I through the side-by-side Glasair II to the larger, more powerful Glasair III, with the latter capable of cruise speeds exceeding 250 knots when equipped with a 300-horsepower Lycoming engine. The design's composite construction (fiberglass and carbon fiber) delivered exceptional strength-to-weight ratios and smooth aerodynamic surfaces that translated directly into speed, making Glasairs perennial favorites at air races and cross-country rallies throughout the 1990s and 2000s.

The type's appeal lies in its blend of fighter-like handling, retractable gear, and genuine 200+ knot cruise capability in a two-seat package, all achievable by amateur builders willing to invest 1,500 to 2,000 hours of construction time. While the Glasair III remains the most capable variant with a never-exceed speed of 220 knots and a maximum structural cruising speed of 200 knots, earlier models like the Glasair I and II offer similar handling characteristics at slightly lower performance envelopes. The company changed hands several times and eventually merged into what became the GlaStar and Sportsman product lines, but hundreds of original Glasairs remain active in private hands.

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

FLIGHTS
68
all time
FLOWN HOURS
63
tracked time
📍
AIRPORTS VISITED
36
unique
📡
CALLSIGNS
2
29 routes
📅
SERVICE PERIOD
06/07/2025 → 06/13/2026
first → last
INCIDENT RATE
2.9%
2 flagged

Top routes

By flight count

10
5
32WI 0G0
1
1
1
D52 5G0
1
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 40 operations of N42DQ

40
06/13/2026
30m
No alerts
06/13/2026
7m
No alerts
06/13/2026
24m
No alerts
06/13/2026
12m
No alerts
06/13/2026
11m
No alerts
06/13/2026
31m
No alerts
06/13/2026
36m
No alerts
06/08/2026
53m
No alerts
06/07/2026
1h 47m
No alerts
06/07/2026
1h 17m
No alerts
06/07/2026
3m
No alerts
06/07/2026
32m
No alerts
06/07/2026
1h 7m
No alerts
06/07/2026
5h 16m
No alerts
06/07/2026
22m
No alerts
06/02/2026
14m
No alerts
05/11/2026
54m
No alerts
04/21/2026
48m
No alerts
03/30/2026
30m
No alerts
10/08/2025
38m
No alerts
07/15/2025
13m
△ Low approach-stability score
07/15/2025
24m
No alerts
07/14/2025
24m
No alerts
07/14/2025
47m
No alerts
07/14/2025
13m
No alerts
07/14/2025
4h 16m
No alerts
07/14/2025
19m
No alerts
07/14/2025
7m
No alerts
07/14/2025
7m
No alerts
07/13/2025
56m
No alerts
07/10/2025
50m
No alerts
07/09/2025
16m
No alerts
07/09/2025
14m
No alerts
07/09/2025
49m
No alerts
07/09/2025
26m
No alerts
06/19/2025
1h 7m
No alerts
06/07/2025
2h 34m
No alerts
06/07/2025
1h 16m
No alerts
06/07/2025
5h 34m
No alerts
06/07/2025
26m
No alerts
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