NDU81 is operated by UND AEROSPACE FOUNDATION between Heyde Airport (8ND4) and Grand Forks International Airport (KGFK). The flight is most often flown by a PIPER Piper Cherokee. Typical block time is 0h 28m. SkyMeter has observed 375 legs of this flight number via ADS-B.

✈
FLIGHTS
375
last 90 days
⏱
AVG DURATION
28m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/15/2026
first → last seen
🗺
ROUTES / TYPES
85 / 1
city pairs · airframes
⚠
INCIDENT RATE
9.1%
34 flagged

Routes flown

By count · last 90 days

10
8ND4 → KGFK
21
avg 8m · Heyde → Grand Forks
KCKN → KGFK
12
avg 18m · Crookston Municipal Kirkwood Field → Grand Forks
KGFK → K4V4
10
avg 34m · Grand Forks → Northwood Municipal Vince Field
2MN0 → KGFK
9
avg 9m · Pribbs Field → Grand Forks
KGFK → KCKN
9
avg 20m · Grand Forks → Crookston Municipal Kirkwood Field
4ND1 → KGFK
8
avg 7m · Knutson → Grand Forks
KGFK → ND24
7
avg 24m · Grand Forks → Inkster
KGFK → KD56
7
avg 28m · Grand Forks → Mayville
KGFK → KD37
7
avg 24m · Grand Forks → Warren
7NA4 → KGFK
6
avg 20m · Ingebretson Airspray → Grand Forks

Aircraft types

Equipment used on this number

1
P28A PIPER Piper Cherokee
377

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
34
Rejected TO
0
Stall warnings
0
Overspeeds
0
Runway excursion
0
Counts represent flights with at least one occurrence of each flag, not the total event count. See /incidents for individual events.

Recent flights

Newest 30 operations of NDU81

30
N381NDPIPER Piper Cherokee
→
07/15/2026
56m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/15/2026
1h 35m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/15/2026
8m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/15/2026
55m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/15/2026
1h 23m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/15/2026
1h 42m
△ Low approach-stability score
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/15/2026
1h 9m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/15/2026
51m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/14/2026
21m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/14/2026
1h 28m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/14/2026
1h 2m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/14/2026
13m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/14/2026
35m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/14/2026
9m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/14/2026
38m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/14/2026
3m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/14/2026
29m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/13/2026
47m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/13/2026
25m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/11/2026
15m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/11/2026
6m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/11/2026
30m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/11/2026
32m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/11/2026
24m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/11/2026
25m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/11/2026
19m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/11/2026
1h 16m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/10/2026
55m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/10/2026
13m
No alerts
Replay Analysis
N381NDPIPER Piper Cherokee
→
07/10/2026
27m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window