When constantly dealing with batteries and chargers is unacceptable, and endurance and payload capacity are top priorities, we can help. Consider:

AF40- our flagship gas powered helicopter is hard to beat: nearly two hours of flight time, user-friendly design and low-maintenance requirements. It retains the dependable 80cc engine from previous model in stock form, improves on main gearbox and cyclic servo layout, and gets a new FBL rotorhead and tail gearbox assembly.

Website AF40 Rotorhead
Website AF40 Top diagonal


Designed from ground up as a workhorse, our AF40 offers some of the most sought after features, including:

Maintenance-free aircraft grade metal linkages throughout
3CCPM direct-link servo layout, for easy setup and service
Dual clutch autorotation unit
Wet gearbox w/hardened steel gears
FBL rotor head
Payload attachment points upfront and rear
Engine mounting system allows quick engine swaps
Large capacity fuel tanks for nearly two hours of flight

Ships virtually fully assembled as bare airframe, without electronics or wiring.

Please contact us for pricing.


* AF40 is now available with an optional engine, as a custom order- offering the following features:

  • Electronic Fuel Injection(EFI) , self adjusting to 19500 feet above sea level.
  • Built-in starter/generator, w/hybrid power boost capability, eliminating the need for an external starter.
  • Nearly four hours of flight time.
  • Increased payload capacity to 30 lbs.

Please contact us for more details.



External starter unit

Price: $425


Rotor diameter: 2.13 M
Height: 740MM
Landing gear width: 810MM
Length: 2.69M Main to tail blade(tip to tip)
Endurance: 110 Minutes w/10 mins reserve
Engine: 80 cc two stroke
Fuel: Unleaded gasoline/oil mix
Payload: 20 Lbs (Max. at sea level)
Main gearbox type: steel gears/wet
Tail drive type: timing belt
Starter: External