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Aircraft registration

N1645

2 for sale200 registered

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ActiveManufacturer Rans Model S-21 Variant S-21 OUTBOUND
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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A red and white single-engine aircraft with a propeller on an asphalt strip in front of hangars under a clear blue sky.5 photos
Rans S-21 Outbound - $234,000
Fairfield, United States
$234,000
Listed 1mo ago
A white and red aircraft is parked on a concrete surface.20 photos
2021 Rans S21
Cedar Park, United States
Make offer
Listed 5mo ago

Flight activity

(15 tracking legs recorded)

Live tracking paused — activity data through 24 Aug 2026. Windows below are measured to that date.

30 days to 24 Aug 2026
1
90 days to 24 Aug 2026
15
Last seen
22 Aug 2026
Tracked since
12 Jun 2026
  • 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
  • Tracked flight18 Jun 2026 · 0h 34m
  • Tracked flight17 Jun 2026 · 0h 54m
  • Tracked flight15 Jun 2026 · 1h 03m

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?
200Rans S-21 registered worldwide

Common. More common than 84% of the aircraft models we track.

More S-21 aircraft

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

See all 200 registered S-21
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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

About N1645
What type of aircraft is N1645?

N1645 is a Rans S-21.

Where is N1645 registered?

N1645 is currently registered in United States (US).

What is the MSN of N1645?

The manufacturer serial number (MSN) of N1645 is 10230352.

What is the ICAO24 (Mode S) code for N1645?

N1645's ICAO24 hex code is A10391.

Is N1645 still airworthy?

N1645's current registry status is Active.