COBEN CRAIG S· ICAO24 aa674b· last seen 15d ago

N77GG is a Schweizer Aircraft Corporation SA 2-37A, a single-engine piston aircraft operated by COBEN CRAIG S. SkyMeter has tracked 136 flights totalling 49 hours of airtime via ADS-B. The most frequent segment is KBJJ to KBJJ. Service window in our records spans 420 days. Of those flights, 16 (11.8%) carry at least one detected incident: a 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
136
all time
FLOWN HOURS
49
tracked time
📍
AIRPORTS VISITED
13
unique
📡
CALLSIGNS
1
17 routes
📅
SERVICE PERIOD
6/7/2025 → 8/1/2026
first → last
INCIDENT RATE
11.8%
16 flagged

Top routes

By flight count

10
15
7
6
5
5
3
3
2
K3G4 15G
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
8/1/2026
11m
No alerts
7/29/2026
18m
No alerts
7/24/2026
31m
No alerts
7/19/2026
19m
No alerts
7/19/2026
12m
No alerts
7/5/2026
7m
No alerts
6/20/2026
13m
No alerts
6/13/2026
16m
No alerts
6/13/2026
15m
No alerts
6/7/2026
38m
No alerts
6/6/2026
30m
△ Low approach-stability score
5/24/2026
29m
No alerts
5/12/2026
26m
No alerts
5/10/2026
7m
△ Low approach-stability score
5/9/2026
5m
No alerts
4/26/2026
28m
No alerts
4/11/2026
51m
No alerts
3/29/2026
42m
No alerts
3/22/2026
7m
No alerts
3/22/2026
11m
No alerts
3/14/2026
48m
No alerts
3/9/2026
20m
△ Low approach-stability score
3/2/2026
42m
△ Low approach-stability score
2/28/2026
49m
No alerts
2/14/2026
55m
No alerts
12/21/2025
29m
No alerts
11/23/2025
17m
No alerts
11/8/2025
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
10/5/2025
10m
No alerts
10/5/2025
10m
No alerts
10/5/2025
11m
No alerts
10/5/2025
11m
No alerts
9/28/2025
8m
△ Low approach-stability score
9/28/2025
8m
No alerts
9/28/2025
15m
No alerts
9/20/2025
12m
No alerts
9/20/2025
13m
No alerts
9/20/2025
13m
No alerts
9/13/2025
17m
△ Low approach-stability score
9/13/2025
10m
No alerts
8/23/2025
40m
No alerts
8/23/2025
35m
No alerts
8/22/2025
2h 0m
No alerts
8/22/2025
20m
No alerts
8/10/2025
11m
No alerts
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