Electronic Speed Controllers (ESC) and Single Cylinder EFI Engines for Drones
Corvid-29 UAV Engine Power, Capability and Confidence
Corvid-29 UAV Engine

Power, Capability and Confidence

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Corvid-29 UAV Engine

The Corvid-29 is a 29cc single cylinder engine with high power density and minimal maintenance requirements. The engine has excellent reliability and the EFI system maintains optimum engine operating parameters in all regimes of flight. This avoids common flaws of carbureted engines such as icing, top-of-climb engine stalls and incorrect fuel-air ratios. The engine has passed two 150 hour endurance tests (based on the US Federal Aviation Regulation Part 33) without the need for a major overhaul.

One of the major advantages with a Currawong engine is that it can be supplied as a turnkey system including a generator, power supply (with remote starter feature), isolation mount, low noise exhaust and standard harnesses.

The Corvid-29 engine is recommended for aircraft with a maximum take-off weight of 25 kg.

Part Number CE859-04 / B29i (US/Canada only)
Engine Type 2-stroke Single Engine (3W-28)
Displacement 29cc
Weight 3.17kg (6.98lb) (Engine, Generator, Low Noise Exhaust, Iso Mount, EFI, Power Supply & Harness)
Fuel Type PULP / 100LL* / MOGAS
Fuel Consumption 500g/kW-hr (0.82 lb/HP-hr) at cruise
Power 1.8kW / 2.4HP at 9,000 RPM
Generator 250W / 500W intermittent Duty Cycle
Ignition CDI
Cooling Air-Cooled
TBO 350 hrs
Typical MTOW 20-25kg
*This fuel may change performance numbers of the above and is dependent on the application
Inclusions in the Engine Package
  • Base 3W-28 engine with modified crankcase
  • Custom induction system with manifold and throttle body
  • Miniature Engine Control Unit (ECU)
  • Self priming fuel pump
  • Atomising fuel injector
  • CDI Ignition
  • Manifold and Cylinder head temperature sensors
  • Generator
  • Engine Isolation Mount
  • Operation and service and ICD manuals
Optional Items
  • Low Noise Exhaust (as pictured)
  • Side Mount Exhaust
  • Power supply with starter