N121SX
Built 2018 · registered US
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This aircraft
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Performance specs
- Range
- 350 nm
- Cruise speed
- 113 kt
- Max speed
- —
- Service ceiling
- 14,000 ft
- Takeoff distance
- —
- Landing distance
- —
- MTOW
- 1,100 kg
- Empty weight
- —
- Fuel capacity
- 116 L
- Length
- 11.7 m
- Wingspan
- —
- Height
- 3.2 m
- Seats
- 4
- Max passengers
- 4
Flight activity
(7 tracking legs recorded)- Last 30 days
- 2
- Last 90 days
- 2
- Last seen
- 25 Oct 2026
- Tracked since
- 5 Jun 2026
Frequent routes: KAWO → KAWO (1) · KAWO → KBFI (1)
- KAWO → KAWO18 Oct 2026 · 1h 49m
Showing the 1 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.
Common. One of the most common aircraft types we track.
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Registration history
(1)- N121SXUSACTIVEUnknown owner2024 – 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 N121SX?
N121SX is a Robinson R44, built in 2018. Sprinkle's record for N121SX covers its lineage, ownership history and specifications.
Is N121SX currently active?
Registry records list N121SX's status as Active, registered in United States — a Robinson R44.
What is the manufacturer serial number (MSN) of N121SX?
N121SX carries manufacturer serial number (MSN) 14147, the serial assigned to this Robinson R44 airframe when it was built.
What is the ICAO24 / Mode S code for N121SX?
N121SX's ICAO24 (Mode S) transponder code is A0590F — the hex address the Mode S transponder on this Robinson R44 broadcasts.