ZM521
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Performance specs
- Range
- 430 nm
- Cruise speed
- 129 kt
- Max speed
- 154 kt
- Service ceiling
- 17,000 ft
- Takeoff distance
- —
- Landing distance
- —
- MTOW
- 2,700 kg
- Empty weight
- —
- Fuel capacity
- 600 L
- Length
- 12.1 m
- Wingspan
- —
- Height
- 3.6 m
- Seats
- 7
- Max passengers
- 7
Flight activity
(12 tracking legs recorded)- Last 30 days
- 0
- Last 90 days
- 10
- Last seen
- 22 Oct 2026
- Tracked since
- 7 Jul 2026
- Tracked flight18 Sept 2026 · 0h 34m
- Tracked flight11 Sept 2026 · 1h 10m
- Tracked flight3 Sept 2026 · 1h 38m
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.
Common. More common than 97% of the aircraft models we track.
Other EC135 airframes by tail number — same model as ZM521.
- C-FMYG2026
- C-FMYI2026
- C-FMJK2026
- C-FLSS2026
- C-FMUE2026
- N139HN2025
- N222HN2025
- N81LN2025
- N423CH2025
- N549AM2025
- PP-HPY2025
- N479LF2025
- N225LX2025
- N620ME2025
- N608MT2025
- N865CH2025
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Registration history
(1)- ZM521GBACTIVEUnknown owner—
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 ZM521?
ZM521 is a Airbus Helicopters EC135. Sprinkle's record for ZM521 covers its lineage, ownership history and specifications.
Is ZM521 currently active?
Registry records list ZM521's status as Active, registered in United Kingdom — a Airbus Helicopters EC135.
What is the ICAO24 / Mode S code for ZM521?
ZM521's ICAO24 (Mode S) transponder code is 43C8EF — the hex address the Mode S transponder on this Airbus Helicopters EC135 broadcasts.
Are there manuals available for the Airbus Helicopters EC135?
Sprinkle holds 4 manuals for the Airbus Helicopters EC135, the model ZM521 belongs to — POH, checklists and performance data where published.