|
The Avimech DF1 Dragonfly is an experimental, amateur-built helicopter created by Avimech International, designed by Ricardo Cavalcanti. Avimech’s main set of values revolve around environmentally-friendly aircraft that are cost-effective and safe. The DF1 Dragonfly was built as an experimental helicopter that represents these values in its design. As with some other ultralight, low-cost helicopters in the past, the DF1 uses jets at the tips of the rotors to generate lift. These rockets are fueled with hydrogen peroxide, which Avimech contends is eco-friendlier than gasoline, which would usually power a craft of this class. The fuel is fed from tanks next to the pilot up through the actual blades themselves. This design eliminated counter-torque, since the two opposing rockets balance out against each other. Therefore, the tail rotor only has to serve a flight control function. The entire design results in an almost completely vibration-free helicopter, which makes it very pilot-friendly. The base model weight in at an incredibly frugal 234 pounds, the top speed of the craft is 115 miles per hour, with an astounding climb rate of 2000 feet per minute. With the standard tank the total flight time is about 60 minutes. This can be doubled by using an additional tank. Many optional extras can be fitted to the Dragonfly. These include high-horsepower engines, a windshield, a canopy, rescue hammock, cargo compartment, autopilot, winch, navigation systems and landing lights. As you can tell, the base model is really bare-boned, but the Dragonfly promises to be a versatile ultra-light utility helicopter, especially since it can also be equipped with floats and agricultural sprayers. While not yet in production, Avimech plans to produce a two-seater version for the open market.
|