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N521S

Built 1985 · registered US

Free alerts when N521S's registration or status changes, or the S.211 market moves.

Representative photo of a Siai-Marchetti S.211Type photo — not this specific aircraftPhoto via Wikipedia: SIAI-Marchetti S.211
This aircraft is a
Siai-Marchetti S.211(S211)
Full specs

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Performance specs

Performance
Range
300 nm
Cruise speed
360 kt
Max speed
400 kt
Service ceiling
42,000 ft
Takeoff distance
—
Landing distance
—
Weights
MTOW
3,700 kg
Empty weight
—
Fuel capacity
620 L
Dimensions
Length
9.3 m
Wingspan
8.4 m
Height
3.8 m
Capacity
Seats
2
Max passengers
2

Flight activity

(16 tracking legs recorded)
Last 30 days
6
Last 90 days
16
Last seen
7 Oct 2026
Tracked since
26 Aug 2026

Frequent routes: KIWA → KIWA (1)

  • … → KIWA24 Sept 2026 · 0h 23m
  • … → KIWA8 Sept 2026 · 1h 39m
  • … → KIWA26 Aug 2026 · 1h 01m

Showing the 3 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?
21Siai-Marchetti S.211 registered worldwide

Uncommon. Rarer than 52% of the aircraft models we track.

More S.211 aircraft

Other S.211 airframes by tail number — same model as N521S.

See all 21 registered S.211
What to do next

Registration history

(1)
  • N521SUSACTIVE
    AVIATION PERFORMANCE SOLUTIONS LLC
    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

N521S — frequently asked
What aircraft model is N521S?

N521S is a Siai-Marchetti S.211, built in 1985. Sprinkle's record for N521S covers its lineage, ownership history and specifications.

Is N521S currently active?

Registry records list N521S's status as Active, registered in United States — a Siai-Marchetti S.211.

What is the manufacturer serial number (MSN) of N521S?

N521S carries manufacturer serial number (MSN) 032/02-021, the serial assigned to this Siai-Marchetti S.211 airframe when it was built.

What is the ICAO24 / Mode S code for N521S?

N521S's ICAO24 (Mode S) transponder code is A68E35 — the hex address the Mode S transponder on this Siai-Marchetti S.211 broadcasts.