Beagle B.121 Pup (PUP)
ICAO PUP Light Piston

Beagle B.121 Pup

Single Piston

The Beagle Pup is a British two-seat light aircraft that emerged in the late 1960s as one of the last products of the UK's once-thriving general aviation industry. Designed by Beagle Aircraft at Shoreham, the Pup was intended as a modern trainer and touring aircraft to compete with American designs like the Cessna 150 and Piper Cherokee. First flown in 1967, it featured a low-wing configuration, side-by-side seating, and a 100-horsepower Rolls-Royce Continental engine, offering docile handling characteristics ideal for ab-initio training. The type earned a reputation for being well-built and pleasant to fly, with responsive controls and good visibility, though it never achieved the commercial success of its American rivals. Production ended in 1969 after Beagle's financial collapse, with only around 150 examples built across all variants (including the 150hp Pup 150 and 180hp Bulldog military trainer derivative). Today the Pup remains a cherished classic on the British register, prized by enthusiasts for its rarity and quintessentially British engineering. Its operating envelope is typical of the era: never-exceed speed of 163 knots, cruise around 105 knots, and a stall speed of 43 knots in landing configuration. SkyMeter has tracked 9 flights across 5 airframes and 1 operators, with routes observed.

✈
ACTIVE AIRFRAMES
5
last 7 days
🏢
OPERATORS
1
unique airlines
📊
FLIGHTS
9
tracked
⏱
AVG DURATION
50m
per flight
⚠
INCIDENT RATE
22.2%
2 flagged
ⓘ

Safety in context

The incident rate counts flights with ANY safety event detected by SkyMeter: go-arounds (a routine response, not a failure), unstable-approach gate flags (advisory thresholds), rejected takeoffs (the system working as designed), and runway events. It is NOT an accident rate or fatality rate. For accident statistics, refer to the NTSB Aviation Accident Database (USA) or the Aviation Safety Network. See methodology for what each event type measures.

Performance

Speed envelope & approach

Vref
60 kt
Vref range
—
Vmo
—
Mmo
—
Vne
163 kt
Vno
122 kt
Vs1 (clean)
50 kt
Vs0 (landing)
43 kt
Vfe
95 kt
Approach category
—

Dimensions

Airframe geometry

Wingspan
—
Length
—
Tail height
—
Wheelbase
—
Gear width
—
Wake category
L

Weight & identification

Operating limits

MTOW
1,600 lb
MALW
—
Manufacturer model
B.121 Pup
FAA designator
—
Registered
—

Top operators

By fleet size · last 7 days

0

No operator data available.

Safety profile

Flagged flights · last 7 days

Family

Related variants

0

No related variants.

Recent incidents

Flagged flights of PUP

20
10/16/2026
56m
△ Low approach-stability score
10/14/2026
27m
△ Low approach-stability score
10/8/2026
46m
△ Low approach-stability score
10/8/2026
46m
△ Low approach-stability score
10/2/2026
30m
△ Low approach-stability score
9/24/2026
1h 0m
△ Low approach-stability score
9/21/2026
40m
△ Low approach-stability score
9/20/2026
40m
△ Low approach-stability score
9/9/2026
45m
△ Low approach-stability score
8/26/2026
21m
△ Low approach-stability score

Recent flights

Real flights of PUP · airborne ≥ 20 min

30
10/17/2026
29m
No alerts
10/17/2026
1h 31m
No alerts
10/16/2026
56m
△ Low approach-stability score
10/14/2026
1h 27m
No alerts
10/14/2026
27m
△ Low approach-stability score
10/14/2026
40m
No alerts
10/14/2026
1h 21m
No alerts
10/11/2026
47m
No alerts
10/11/2026
29m
No alerts
10/11/2026
55m
No alerts
10/10/2026
22m
No alerts
10/8/2026
46m
△ Low approach-stability score
10/8/2026
46m
△ Low approach-stability score
10/8/2026
28m
No alerts
10/7/2026
39m
No alerts
10/7/2026
45m
No alerts
10/6/2026
1h 41m
No alerts
10/6/2026
1h 21m
No alerts
10/4/2026
35m
No alerts
10/4/2026
1h 1m
No alerts
10/4/2026
43m
No alerts
10/4/2026
1h 12m
No alerts
10/4/2026
36m
No alerts
10/2/2026
32m
No alerts
10/2/2026
31m
No alerts
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© SkyMeter · All flight data subject to ODbL attribution · Tracking window: 7 days (free tier)