FQ-550CC
Aviation‑Grade Power
Air-cooled two-stroke · 37kW · 70kg thrust
Reliable heart for UAVs and specialty vehicles.
Tailored for
Harsh Environments
Featuring an opposed four‑cylinder layout, air‑cooled two‑stroke design, with automatic‑advance CDI ignition and mixed‑fuel lubrication, ensuring stable output at high altitudes and under complex operating conditions.
Forced Air Cooling · Efficient Heat Dissipation
Aluminum cylinder block with ceramic‑Ni‑Si hardened coating, designed for sustained high‑power operation.
CDI Auto‑Advance Ignition
Precise ignition timing, synchronous firing on opposed cylinders, automatic switching at 500 rpm.
Forged 7‑Piece Assembled Crankshaft
High‑strength lightweight design, optimized vibration damping, extended service life.
Wide RPM Range (1300–7500rpm)
Balances low‑speed torque and high‑rev power, compatible with a variety of propellers.
Precise · Reliable Parameters
Every data point is bench‑verified, meeting aviation‑grade application standards.
Compact · Lightweight Layout
Precise dimensions for easy integration into nacelles or vehicle bodies.
“FQ-550 integrates aviation‑grade reliability into every detail,
the ideal choice for long‑endurance UAVs and high‑performance vehicles.”