N521S
Built 1985 · registered US
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Performance specs
- Range
- 300 nm
- Cruise speed
- 360 kt
- Max speed
- 400 kt
- Service ceiling
- 42,000 ft
- Takeoff distance
- —
- Landing distance
- —
- MTOW
- 3,700 kg
- Empty weight
- —
- Fuel capacity
- 620 L
- Length
- 9.3 m
- Wingspan
- 8.4 m
- Height
- 3.8 m
- 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.
Uncommon. Rarer than 52% of the aircraft models we track.
Other S.211 airframes by tail number — same model as N521S.
- N877B1987
- N265CF1987
- N255CF1987
- N250CF1987
- N211MF1986
- N211UT1986
- N211SD1985
- VH-DQJ1985
- N280CF1985
- VH-CBL1985
- VH-BVK1985
- N852TC1985
- VH-SGB1985
- N40TG1985
- N48SM1985
- N212UT1985
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Registration history
(1)- N521SUSACTIVEAVIATION PERFORMANCE SOLUTIONS LLC2025 – 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
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.