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N75UM — Learjet 45
Learjet 45 · representative
Aircraft

N75UM

Aircraft
Learjet 45LJ45
Operator
Regents of the University of Michigan
Mode-S
AA197E
Registry
United States

Where it flies

Every leg this tail has flown — brighter where it flies most. Home field is ringed.

Airport routes
Howell, MI
Home base · 50% of legs
130
Airports visited
Howell, MI ↔ Gwinn, MI
Busiest corridor · 78 trips
460
Trips tracked · latest trip Jun 1, 2026
2022-032026-06
Tracked span

Ownership

Registered owner
Regents of the University of Michigan
FAA registrant
Attributed to
College FB
Owner class
ad owned

Flight history

Every tracked trip with route and shape. Event tags mark calendar-linked trips; documented rows have a published JetSweep story or research note.

160 trips · 277 legs
We track the aircraft, not who is aboard. Ownership reflects the FAA registrant; attribution and purpose, where shown, are tiered by evidence. Some tails are blocked from public display.