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N121LJ

Built 1996 · registered US

Free alerts when N121LJ's registration or status changes, or the 31 market moves.

Representative photo of a Learjet 31Type photo — not this specific aircraftPhoto via Wikipedia: Learjet 31
This aircraft is a
Learjet 31
Full specs

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Performance specs

Performance
Range
1,290 nm
Cruise speed
450 kt
Max speed
481 kt
Service ceiling
51,000 ft
Takeoff distance
927 m
Landing distance
833 m
Weights
MTOW
7,400 kg
Empty weight
—
Fuel capacity
3,035 L
Dimensions
Length
14.5 m
Wingspan
13.4 m
Height
3.7 m
Capacity
Seats
10
Max passengers
10

Flight activity

(12 tracking legs recorded)
Last 30 days
2
Last 90 days
11
Last seen
22 Oct 2026
Tracked since
7 Aug 2026

Frequent routes: KIAD → KIAD (3) · KBKL → KCMH (1) · KCMH → KBKL (1)

  • KCMH → KBKL22 Oct 2026 · 0h 30m
  • KBKL → KCMH22 Oct 2026 · 5h 59m
  • … → KIAD13 Oct 2026 · 5h 37m
  • KIAD → KIAD13 Oct 2026 · 5h 36m
  • … → KIAD2 Oct 2026 · 6h 11m
  • KIAD → KIAD2 Oct 2026 · 6h 11m

Showing the 6 most recent distinct flights. The total counts every raw ADS-B tracking leg, including repeat observations and sub-5-minute artifacts.

From ADS-B observations collected since May 2026. Coverage depends on ground-receiver density; gaps do not mean the aircraft did not fly.

How common is this aircraft?
225Learjet 31 registered worldwide

Common. More common than 85% of the aircraft models we track.

More 31 aircraft

Other 31 airframes by tail number — same model as N121LJ.

See all 225 registered 31
What to do next

Registration history

(1)
  • N121LJUSACTIVE
    N121LJ LLC
    2021 – present

Owner names are published by the issuing civil registry (FAA / CCARCS / CASA / ANAC / NZ CAA). Owner addresses present in the source are not republished here. Registered owner? Request removal

N121LJ — frequently asked
What aircraft model is N121LJ?

N121LJ is a Learjet 31, built in 1996. Sprinkle's record for N121LJ covers its lineage, ownership history and specifications.

Is N121LJ currently active?

Registry records list N121LJ's status as Active, registered in United States — a Learjet 31.

What is the manufacturer serial number (MSN) of N121LJ?

N121LJ carries manufacturer serial number (MSN) 121, the serial assigned to this Learjet 31 airframe when it was built.

What is the ICAO24 / Mode S code for N121LJ?

N121LJ's ICAO24 (Mode S) transponder code is A0586C — the hex address the Mode S transponder on this Learjet 31 broadcasts.