COBEN CRAIG S· ICAO24 aa674b· last seen 1d ago

N77GG is a Schweizer Aircraft Corporation SA 2-37A, a single-engine piston aircraft operated by COBEN CRAIG S. SkyMeter has tracked 120 flights totalling 44 hours of airtime via ADS-B. The most frequent segment is KBJJ to KBJJ. Service window in our records spans 393 days. Of those flights, 16 (13.3%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion. The Schweizer Aircraft Corporation SA 2-37A has a maximum takeoff weight of 2,150 lb, light wake category.

About the Schweizer Aircraft Corporation SA 2-37A

The Schweizer SA 2-37A represents an unusual niche in general aviation: a purpose-built powered sailplane designed for self-launch and extended motor-glider operations. Developed by Schweizer Aircraft Corporation in the 1980s from their successful SGS 2-32 two-seat sailplane, the SA 2-37A added a 180-horsepower Lycoming O-360 engine and retractable landing gear to create an aircraft that could take off under its own power, climb to altitude, shut down the engine, and then soar like a pure glider. This dual capability made it popular for soaring instruction, cross-country flights without ground crew support, and aerial photography missions requiring both powered positioning and quiet gliding observation.

The type's long, high-aspect-ratio wings deliver exceptional glide performance—a glide ratio exceeding 30:1 with the engine stopped and propeller feathered—while the engine provides enough power for a respectable 700-foot-per-minute climb rate when needed. Maximum cruise speed with power is around 113 knots, though pilots typically fly much slower to maximize endurance and gliding efficiency. The SA 2-37A found a small but dedicated following among soaring enthusiasts and specialized operators who valued its unique combination of sailplane grace and powered-aircraft independence.

Production numbers remained modest, making it a relatively rare sight compared to conventional light aircraft or pure gliders. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
120
all time
FLOWN HOURS
44
tracked time
📍
AIRPORTS VISITED
13
unique
📡
CALLSIGNS
1
19 routes
📅
SERVICE PERIOD
06/07/2025 → 07/05/2026
first → last
INCIDENT RATE
13.3%
16 flagged

Top routes

By flight count

10
12
10
4
4
3
3
14OI 15G
2
2
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Schweizer Aircraft Corporation SA 2-37A

Engines
Single Piston
Vref (approach)
55 kt
MTOW
2,150 lb
Wake category
L

Recent flights

Newest 50 operations of N77GG

50
07/05/2026
7m
No alerts
06/20/2026
13m
No alerts
06/13/2026
16m
△ Unstable approach
06/13/2026
15m
No alerts
06/07/2026
38m
No alerts
06/06/2026
30m
△ Unstable approach
05/24/2026
29m
No alerts
05/12/2026
26m
No alerts
05/10/2026
7m
△ Unstable approach
05/09/2026
5m
No alerts
04/26/2026
28m
No alerts
04/11/2026
51m
No alerts
03/29/2026
42m
No alerts
03/22/2026
7m
No alerts
03/22/2026
11m
No alerts
03/14/2026
48m
No alerts
03/09/2026
20m
△ Unstable approach
03/02/2026
42m
△ Unstable approach
02/28/2026
12m
No alerts
02/28/2026
18m
No alerts
02/14/2026
55m
△ Unstable approach
12/21/2025
29m
△ Unstable approach
11/23/2025
17m
No alerts
11/08/2025
33m
No alerts
10/26/2025
21m
No alerts
10/26/2025
9m
No alerts
10/18/2025
25m
No alerts
10/12/2025
23m
No alerts
10/12/2025
10m
No alerts
10/05/2025
10m
No alerts
10/05/2025
11m
No alerts
09/28/2025
8m
No alerts
09/28/2025
15m
No alerts
09/20/2025
12m
No alerts
09/20/2025
13m
No alerts
09/13/2025
17m
△ Unstable approach
09/13/2025
10m
No alerts
08/23/2025
40m
No alerts
08/23/2025
35m
No alerts
08/22/2025
2h 0m
No alerts
08/22/2025
20m
No alerts
08/10/2025
11m
No alerts
08/10/2025
12m
No alerts
08/02/2025
12m
No alerts
08/02/2025
8m
No alerts
08/02/2025
22m
No alerts
08/01/2025
33m
No alerts
07/19/2025
10m
No alerts
07/19/2025
18m
No alerts
07/13/2025
15m
No alerts
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