SOSA GLIDING CLUB· ICAO24 c08303· last seen 12d ago

C-GXPY is a Textron Aviation AS 21, a twin-engine jet operated by SOSA GLIDING CLUB. SkyMeter has tracked 770 flights totalling 766 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is CPT3 to CYHM. Service window in our records spans 410 days. Of those flights, 50 (6.5%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Textron Aviation AS 21 has a maximum takeoff weight of 6,000 lb, light wake category.

About the Textron Aviation AS 21

The Aero L-29 Delfín is a Cold War-era jet trainer that became the most widely produced jet training aircraft in history, with over 3,600 built between 1963 and 1974. Designed by Czechoslovakia's Aero Vodochody, the L-29 was selected as the standard jet trainer for the entire Warsaw Pact, serving air forces from East Germany to Egypt. Its rugged construction, docile handling, and simple maintenance made it ideal for ab-initio jet training, introducing thousands of pilots to jet operations during the height of the Cold War.

The straight-wing design and side-by-side seating were unconventional for a jet trainer but contributed to its forgiving flight characteristics and excellent instructor-student communication. Powered by a single Motorlet M-701 turbojet producing 1,960 pounds of thrust, the Delfín cruises at around 340 knots and can reach altitudes above 36,000 feet, though typical training missions operated much lower. After the fall of the Iron Curtain, hundreds of surplus L-29s entered the civilian market, where they found new life as affordable warbird aircraft for aerobatic displays, formation flying, and jet transition training.

Today the type remains popular in North America with warbird collectors and flight schools offering jet upset training, prized for its relatively low operating costs compared to Western jet trainers and its honest, predictable handling that forgives student errors while still delivering an authentic jet experience. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
770
all time
FLOWN HOURS
766
tracked time
📍
AIRPORTS VISITED
10
unique
📡
CALLSIGNS
2
15 routes
📅
SERVICE PERIOD
05/27/2025 → 07/11/2026
first → last
INCIDENT RATE
6.5%
50 flagged

Top routes

By flight count

10
42
35
27
15
13
10
6
5
3
2

Flight numbers

Most-flown by this airframe

2

Aircraft specifications

Textron Aviation AS 21

Engines
Twin Jet
Vref (approach)
80 kt
MTOW
6,000 lb
Wake category
L

Recent flights

Newest 50 operations of C-GXPY

50
07/11/2026
30m
No alerts
07/11/2026
1h 7m
No alerts
07/11/2026
2h 5m
No alerts
06/28/2026
1h 9m
No alerts
06/02/2026
4m
No alerts
11/22/2025
1h 31m
No alerts
11/22/2025
1h 7m
No alerts
11/22/2025
1h 25m
No alerts
11/22/2025
17m
No alerts
10/26/2025
15m
No alerts
10/26/2025
1h 5m
No alerts
10/26/2025
1h 9m
No alerts
10/26/2025
44m
No alerts
10/26/2025
3h 4m
No alerts
10/26/2025
45m
No alerts
10/26/2025
45m
No alerts
10/25/2025
9m
No alerts
10/25/2025
1h 55m
No alerts
10/25/2025
33m
No alerts
10/25/2025
1h 13m
No alerts
10/25/2025
3m
No alerts
10/17/2025
4h 34m
No alerts
10/17/2025
52m
No alerts
10/17/2025
44m
No alerts
10/16/2025
1h 40m
No alerts
10/16/2025
2h 53m
No alerts
10/15/2025
3m
No alerts
10/15/2025
58m
No alerts
10/15/2025
7m
No alerts
10/15/2025
46m
No alerts
10/15/2025
56m
△ Low approach-stability score
10/13/2025
15m
No alerts
10/13/2025
44m
No alerts
10/13/2025
1h 48m
No alerts
10/12/2025
1h 31m
No alerts
10/12/2025
13m
No alerts
10/11/2025
40m
No alerts
10/11/2025
6m
No alerts
10/10/2025
2h 38m
△ Low approach-stability score
10/10/2025
9m
No alerts
10/10/2025
45m
No alerts
10/10/2025
50m
No alerts
10/10/2025
45m
No alerts
10/09/2025
3m
No alerts
10/09/2025
28m
No alerts
10/09/2025
8m
No alerts
10/09/2025
44m
No alerts
10/09/2025
1h 24m
No alerts
10/09/2025
1h 43m
No alerts
10/09/2025
1h 19m
No alerts
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