GUERIN MARIANNE· ICAO24 a8b293· last seen 8d ago

N66HD is a Schleicher ASW 29 operated by GUERIN MARIANNE. SkyMeter has tracked 14 flights totalling 10 hours of airtime via ADS-B. The most frequent segment is NV23 to K4SD. Service window in our records spans 152 days. The Schleicher ASW 29 has a maximum takeoff weight of 1,874 lb, light wake category.

About the Schleicher ASW 29

The Schleicher ASW 29 is a high-performance racing sailplane that represents the pinnacle of modern glider design for Open Class competition. Introduced in 2005 by the German manufacturer Alexander Schleicher GmbH & Co, the ASW 29 features an 18-meter wingspan (extendable to 20 meters with optional wingtip extensions) and advanced aerodynamics that deliver exceptional climb rates in thermals and outstanding cross-country speed. Its carbon fiber construction keeps empty weight around 570 pounds while maintaining structural strength for the demanding loads of competitive soaring.

The type quickly established itself as a dominant force in international gliding competitions, with pilots achieving multiple world records for speed over distance. The ASW 29 excels in weak lift conditions where its efficient wing design and low sink rate provide a decisive advantage, yet it remains fast enough in strong conditions to compete with pure racing machines. Maximum glide ratio exceeds 50:1 under optimal conditions, meaning the aircraft can travel more than 50 feet forward for every foot of altitude lost. The cockpit accommodates pilots up to 6'5" and features modern instrumentation including GPS-based flight computers and variometers that display real-time thermal strength.

Despite having no engine, the ASW 29 routinely achieves cross-country flights exceeding 500 miles by exploiting atmospheric lift from thermals, ridge lift, and wave systems. The never-exceed speed of 155 knots allows aggressive flying in strong conditions, while the clean stall speed of 43 knots provides a wide speed envelope for tactical racing. Water ballast tanks allow pilots to increase wing loading for faster cruise speeds on strong days, then dump the ballast for better climb performance as conditions weaken. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
14
all time
FLOWN HOURS
10
tracked time
📍
AIRPORTS VISITED
5
unique
📡
CALLSIGNS
1
4 routes
📅
SERVICE PERIOD
3/9/2026 → 8/8/2026
first → last
INCIDENT RATE
0.0%
0 flagged

Top routes

By flight count

3
2
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Schleicher ASW 29

Engines
0
Vref (approach)
55 kt
MTOW
1,874 lb
Wake category
L

Recent flights

Newest 9 operations of N66HD

9
8/8/2026
1h 5m
No alerts
8/8/2026
1h 14m
No alerts
6/5/2026
1h 29m
No alerts
4/2/2026
1h 27m
No alerts
3/9/2026
3m
No alerts
3/9/2026
4m
No alerts
3/9/2026
23m
No alerts
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