B-1581
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This aircraft
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Performance specs
- Range
- 2,700 nm
- Cruise speed
- 460 kt
- Max speed
- 525 kt
- Service ceiling
- 41,000 ft
- Takeoff distance
- 2900 m
- Landing distance
- 2400 m
- MTOW
- 78,200 kg
- Empty weight
- —
- Fuel capacity
- 26,000 L
- Length
- 42.1 m
- Wingspan
- 35.8 m
- Height
- 12.6 m
- Seats
- 177
- Max passengers
- 189
Flight activity
(56 tracking legs recorded)- Last 30 days
- 7
- Last 90 days
- 53
- Last seen
- 25 Oct 2026
- Tracked since
- 8 Aug 2026
- Tracked flight25 Oct 2026 · 12h 07m
- Tracked flight24 Oct 2026 · 10h 24m
- Tracked flight19 Oct 2026 · 19h 53m
- Tracked flight19 Oct 2026 · 10h 37m
- Tracked flight18 Oct 2026 · 6h 04m
- Tracked flight18 Oct 2026 · 5h 04m
- Tracked flight4 Oct 2026 · 10h 40m
- Tracked flight23 Sept 2026 · 8h 19m
- Tracked flight22 Sept 2026 · 12h 39m
- Tracked flight22 Sept 2026 · 8h 15m
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.
Common. One of the most common aircraft types we track.
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Registration history
(1)- B-1581CNACTIVEOkay Air—
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
Operator history
(1)- Okay AirwaysOperator2026 – present
What aircraft model is B-1581?
B-1581 is a Boeing 737. Sprinkle's record for B-1581 covers its lineage, ownership history and specifications.
Is B-1581 currently active?
Registry records list B-1581's status as Active, registered in China — a Boeing 737.
What is the manufacturer serial number (MSN) of B-1581?
B-1581 carries manufacturer serial number (MSN) 41113, the serial assigned to this Boeing 737 airframe when it was built.
What is the ICAO24 / Mode S code for B-1581?
B-1581's ICAO24 (Mode S) transponder code is 7810B6 — the hex address the Mode S transponder on this Boeing 737 broadcasts.