· ICAO24 4b5a25· last seen May 2026

HB-5502 is a Pitts S-1 / S-2, a single-engine piston aircraft — likely a private operator. SkyMeter has tracked 10 flights totalling 9 hours of airtime via ADS-B. The most frequent segment is LSGY to LSGY. The Pitts S-1 / S-2 has a maximum takeoff weight of 1,150 lb, light wake category.

About the Pitts S-1 / S-2

The Pitts Special is the iconic American aerobatic biplane that defined unlimited-category competition aerobatics for decades and remains the gold standard for snap rolls, lomcevaks, and knife-edge flight. Designed by Curtis Pitts in the 1940s and continuously refined through single-seat S-1 and two-seat S-2 variants, the Pitts combines a powerful Lycoming engine with an ultra-light airframe and symmetrical airfoil wings to deliver roll rates exceeding 400 degrees per second and sustained inverted flight capability that few aircraft can match. Its compact 17-foot wingspan and positive control harmony at any attitude made it the dominant force in aerobatic contests from the 1960s through the 1980s, with pilots like Bob Herendeen and Clint McHenry flying Pitts Specials to multiple national and world championships.

Though modern monoplanes like the Extra 300 and Edge 540 have since claimed the top competitive spots with higher roll rates and cleaner lines, the Pitts remains beloved for its honest handling, forgiving stall characteristics, and the pure stick-and-rudder skill it demands—no computer assists, no composite magic, just steel tube, fabric, and a pilot's hands. The open-cockpit experience and unmistakable radial-cowl silhouette (on Lycoming-powered variants styled to evoke radial heritage) keep the type popular among airshow performers and weekend aerobats who value tradition and raw flying pleasure over the last tenth of a G. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
10
all time
FLOWN HOURS
9
tracked time
📍
AIRPORTS VISITED
2
unique
📡
CALLSIGNS
1
2 routes
📅
SERVICE PERIOD
05/21/2026 → 05/27/2026
first → last
INCIDENT RATE
0.0%
0 flagged

Top routes

By flight count

1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Pitts S-1 / S-2

Engines
Single Piston
Vref (approach)
70 kt
MTOW
1,150 lb
Wake category
L

Recent flights

Newest 5 operations of HB-5502

5
05/27/2026
20m
No alerts
05/27/2026
8m
No alerts
05/27/2026
3h 33m
No alerts
05/27/2026
19m
No alerts
05/21/2026
9m
No alerts
© SkyMeter · All flight data subject to ODbL attribution