Ewatt UAV

Ewatt UAVs are Chinese UAVs developed by Hubei Ewatt Aerospace of Ewatt Co., Ltd. (Ewatt, 湖北易瓦特科技有限公司), which has entered joint production agreement with Fetters AeroSpace LLC founded by Dennis Fetters, the founder of Revolution Helicopter Corporation. Mr. Dennis Fetters and his firm has been previously contracted by another Chinese UAV manufacturer Sunward Co., Ltd. (Sunward), a Chinese UAV manufacturing company based in the provincial capital of Hunan, to develop an unmanned helicopter designated as Sunward SVU-200 Flying Tiger, which is an upgrade of an unmanned helicopter Star-Lite of Fetters' own design. Although living in Changsha and working with Sunward for more than two years, Dennis Fetters did not stay with Sunward afterward, but instead, relocated his home to Wuhan to become chief technology officer (CTO) of Ewatt Aerospace, but Dennis Fetters and his Fetters Aerospace LLC still provide certain degrees of support of SVU-200 program. Before becoming the CTO of the Ewatt Aerospace, Ewatt and Fetters Aerospace had agreed to jointly develop UAVs and Fetters Aerospace LLC had already been contracted by Ewatt Aerospace to market Ewatt UAVs in civilian market in US. Dennis Fetters made his public appearance in 2013 in Washington DC as Ewatt CTO at 2013 Association for Unmanned Vehicle Systems International

EWZ-S
EWZ-S is a micro air vehicle (MAV) developed by Ewatt, and it is a quadrotor. Landing gear system consists of a pair of skids, and this unmanned helicopter is the larger cousin of the larger EWZ-S8. EWZ-S is constructed of aluminum alloy and carbon fiber. Specification:
 * Length: 0.7 m
 * Width: 0.7 m
 * Height: 0.3 m
 * Main rotor diameter: 0.31 m
 * Empty weight: 2.5 kg
 * Payload: 0.5 kg
 * Max take-off weight: 3 kg
 * Endurance: 20 min
 * Range: 12 km
 * Ceiling: 4.5 km
 * Normal operating altitude: 350 m
 * Speed: 40 km/hr
 * Operating temperature: - 30 to 50°C
 * Max wind scale allowed for operation: 5
 * Power plant: lithium battery

EWZ-S8
EWZ-S8 is another MAV developed by Ewatt, and it is an octocopter. Landing gear system consists of a pair of skids. This unmanned multirotor differs from most of the rest of unmanned Chinese mulitrotors in that instead of having arms attached to the center like in EWZ-S, EWZ-S8 has a rectangular frame with short arms protruding from each of the four corners. A pair of rotors are attached to the top of each arm, one above the arm, and the other below. EWZ-S8 is constructed of aluminum alloy and carbon fiber. Specification:
 * Length: 0.8 m
 * Width: 0.8 m
 * Height: 0.45 m
 * Main rotor diameter: 0.38 m
 * Empty weight: 5 kg
 * Payload: 4 kg
 * Max take-off weight: 9 kg
 * Endurance: 25 min
 * Range: 20 km
 * Ceiling: 5.2 km
 * Normal operating altitude: 500 m
 * Speed: 50 km/hr
 * Operating temperature: - 30 to 50°C
 * Max wind scale allowed for operation: 6
 * Power plant: lithium battery

EWZ-I
EWZ-I UAV is an unmanned helicopter developed by Ewatt in conventional helicopter layout and the landing gear system consists of a pair of skids, and this UAV is powered by a twin cylinder gasoline engine, and constructed of aluminum alloy and carbon fiber. Specification:
 * Length: 2.3 m
 * Width: 0.6 m
 * Height: 0.75 m
 * Main rotor diameter: 2.12 m
 * Tail rotor diameter: 0.409 m
 * Fuel: 6 L
 * Empty weight: 30 kg
 * Payload: 20 kg
 * Max take-off weight: 50 kg
 * Endurance: 90 min
 * Range: 180 km
 * Ceiling: 3.5 km
 * Normal operating altitude: 3 km
 * Speed: 125 km/hr
 * Operating temperature: - 20 to 50°C
 * Max wind scale allowed for operation: 6
 * Power plant: 11 hp 110 cc gasoline engine

EWZ-II
EWZ-II is an unmanned helicopter developed by Ewatt in conventional helicopter layout and the landing gear system consists of a pair of skids and this UAV is powered by a gasoline engine, and constructed of aluminum alloy and carbon fiber. EWZ is the larger cousin of the smaller EWZ-II, and like its smaller cousin, it is also constructed of aluminum alloy and carbon fiber. Specification:.
 * Length: 3.01 m
 * Width: 0.65 m
 * Height: 1.2 m
 * Main rotor diameter: 3.56 m
 * Tail rotor diameter: 0.75 m
 * Fuel: 12 L
 * Empty weight: 63 kg
 * Payload: 35 kg
 * Max take-off weight: 120 kg
 * Endurance: 90 min
 * Range: 180 km
 * Ceiling: 5 km
 * Normal operating altitude: 4.5 km
 * Speed: 130 km/hr
 * Operating temperature: - 20 to 50°C
 * Max wind scale allowed for operation: 6
 * Power plant: 40 hp 342 cc gasoline engine

EWZ-120
EWZ-120 UAV is an unmanned helicopter developed by Ewatt in conventional helicopter layout and the landing gear system consists of a pair of skids and this UAV is powered by a gasoline engine, and constructed of composite material. Externally, Ewatt-120 appears very similar to another Chinese unmanned helicopter Sunward SVU-200 Flying Tiger because both are designed by Mr. Dennis Fetters and both are based on Fetters Aerospace Star-Lite. Specification:
 * Length: 4.57 m
 * Width: 0.991 m
 * Height: 1.68 m
 * Main rotor diameter: 4.92 m
 * Tail rotor diameter: 0.965 m
 * Fuel: 40 L
 * Empty weight: 120 kg
 * Max take-off weight: 360 kg
 * Endurance: 156 min
 * Range: 450 km
 * Ceiling: 4.267 km
 * Normal operating altitude: 4.5 km
 * Speed: 209 km/hr
 * Operating temperature: - 20 to 50°C
 * Max wind scale allowed for operation: 8
 * Power plant: 56 hp twin cylinder engine

EWG-1
EWG-I UAV is a fixed-wing UAV of conventional layout with high-wing configuration. Propulsion is provided by a two-blade propeller driven by a tractor engine mounted in the nose. EWG-1 is gasoline-powered and is constructed of aluminum alloy and carbon fiber.
 * Length: 2.55 m
 * Wingspan: 3.1 m
 * Height: 0.7 m
 * Container size: 1.66 m x  0.8 m  x  0.31 m
 * Internal bay for payload: 0.3 m x  0.25 m  x  0.27 m
 * Fuel: 6 L
 * Empty weight: 30 kg
 * Payload: 10 kg
 * Max take-off weight: 40 kg
 * Endurance: 5 hr
 * Range: 750 km
 * Ceiling: 5.5 km
 * Speed: 150 km/hr
 * Operating temperature: - 20 to 50°C
 * Max wind scale allowed for operation: 6
 * Power plant: 11 hp 110 cc twin cylinder gasoline engine
 * Take-off: taxiing or catapult
 * Landing: taxiing or parachute