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N1645

Built 2025 · registered US

Free alerts when N1645's registration or status changes, or the S-21 market moves.

Representative photo of a Rans S-21Type photo — not this specific aircraftPhoto via Wikipedia: Rans S-21 Outbound
This aircraft is a
Rans S-21
Full specs

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Performance specs

Performance
Range
460 nm
Cruise speed
130 kt
Max speed
187 kt
Service ceiling
14,500 ft
Takeoff distance
—
Landing distance
—
Weights
MTOW
800 kg
Empty weight
—
Fuel capacity
150 L
Dimensions
Length
—
Wingspan
8.5 m
Height
—
Capacity
Seats
2
Max passengers
—

Flight activity

(21 tracking legs recorded)
Last 30 days
0
Last 90 days
7
Last seen
26 Sept 2026
Tracked since
12 Jun 2026

Frequent routes: KHII → KHII (1)

  • KHII → KHII26 Sept 2026 · 4h 09m
  • Tracked flight15 Sept 2026 · 5h 01m
  • Tracked flight14 Sept 2026 · 18h 43m
  • Tracked flight22 Aug 2026 · 3h 49m
  • Tracked flight3 Jul 2026 · 0h 13m
  • Tracked flight3 Jul 2026 · 0h 07m
  • Tracked flight3 Jul 2026 · 2h 43m
  • Tracked flight24 Jun 2026 · 1h 11m
  • Tracked flight19 Jun 2026 · 0h 53m
  • Tracked flight18 Jun 2026 · 0h 53m

Showing the 10 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?
217Rans S-21 registered worldwide

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

More S-21 aircraft

Other S-21 airframes by tail number — same model as N1645.

See all 217 registered S-21
What to do next

Registration history

(1)
  • N1645USACTIVE
    COSMER GARY M
    2025 – 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

N1645 — frequently asked
What aircraft model is N1645?

N1645 is a Rans S-21, built in 2025. Sprinkle's record for N1645 covers its lineage, ownership history and specifications.

Is N1645 currently active?

Registry records list N1645's status as Active, registered in United States — a Rans S-21.

What is the manufacturer serial number (MSN) of N1645?

N1645 carries manufacturer serial number (MSN) 10230352, the serial assigned to this Rans S-21 airframe when it was built.

What is the ICAO24 / Mode S code for N1645?

N1645's ICAO24 (Mode S) transponder code is A10391 — the hex address the Mode S transponder on this Rans S-21 broadcasts.