TYMCZYSZYN WILLIAM R, TYMCZYSZYN JOHN S, TYMCZYSZYN ROBERT S· ICAO24 a710a9· last seen 1d ago

N5540K is a Bellanca 8 Scout, a single-engine piston aircraft operated by TYMCZYSZYN WILLIAM R, TYMCZYSZYN JOHN S, TYMCZYSZYN ROBERT S. SkyMeter has tracked 70 flights totalling 45 hours of airtime via ADS-B. The most frequent segment is KTOA to KTOA. Service window in our records spans 399 days. Of those flights, 10 (14.3%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Bellanca 8 Scout has a 36 ft wingspan, a maximum takeoff weight of 2,150 lb.

About the Bellanca 8 Scout

The Bellanca 8KCAB Decathlon is a two-seat tandem aerobatic trainer that has been the backbone of American civilian aerobatic instruction since its introduction in 1970. Built by Champion Aircraft (later acquired by Bellanca and then American Champion), the Decathlon evolved from the earlier Citabria line with strengthened airframe components, inverted fuel and oil systems, and symmetrical wings capable of sustaining positive and negative 6G loads. Powered by a 150 to 180 horsepower Lycoming engine driving a constant-speed propeller, it can perform the full range of basic and intermediate aerobatic maneuvers including loops, rolls, spins, hammerheads, and snap rolls, making it the aircraft of choice for pilots training toward their aerobatic competency endorsement or competing in IAC Sportsman and Intermediate categories.

The Decathlon's docile handling, forgiving stall characteristics, and relatively affordable operating costs have made it a staple at aerobatic schools and flight training organizations across North America. Its fabric-covered steel tube fuselage and wooden wing spars require more maintenance attention than all-metal designs, but the type's simplicity and parts availability have kept hundreds flying for over five decades. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
70
all time
FLOWN HOURS
45
tracked time
📍
AIRPORTS VISITED
9
unique
📡
CALLSIGNS
1
10 routes
📅
SERVICE PERIOD
06/14/2025 → 07/19/2026
first → last
INCIDENT RATE
14.3%
10 flagged

Top routes

By flight count

9
18
4
3
3
1
1
1
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Bellanca 8 Scout

Engines
Single Piston
Vref (approach)
56 kt
MTOW
2,150 lb
Wingspan
36 ft
Length
23 ft
Wake category
Light

Recent flights

Newest 35 operations of N5540K

35
10/21/2025
40m
△ Low approach-stability score
10/03/2025
55m
△ Low approach-stability score
08/25/2025
43m
△ Low approach-stability score
07/27/2025
30m
△ Low approach-stability score
07/12/2025
31m
△ Low approach-stability score
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