Yotaisc UAVs are Chinese UAVs developed by Beijing Yotaisc Science and Technology Development Co., Ltd. (Yotaisc, 北京友泰顺城科技发展有限公司), and most of its products are unmanned helicopters.
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X200
X200 is an unmanned coaxial helicopter with inverted v-tail, and the landing gear system consists of a pair of skids. X200 utilizes commercial off-the-shelf subsystem to reduce cost and shorten the development cycle, resulting in adoptation of matured product such as HeliAP autopilot. Specification:
X200S
X200S is a derivative of X200 that is currently under development, and it is a model that is specially designed for naval deployment, with S stands for Shipborne. X200S development is projected to complete by the end of 2013, and it will use a more powerful diesel engine to replace the current kerosene engine used on X200S.
M28 Honey Bee 28
M28 Honey Bee (Mi-Feng or Mifeng, 蜜蜂) 28 is a coaxial unmanned helicopter developed based on the experience gained from eh smaller X200. M28 Honey Bee 28 is larger than its smaller cousin X200 series, and utilizes the same autopilot HeliAP, and it is powered by a 100 hp engine. Specification:
M29 Honey Bee 29
M29 Honey Bee (Mi-Feng or Mifeng, 蜜蜂) 29 is a further development of M28 Honey Bee 28, with payload increased to 265 kg, and endurance increased to five to eight hours.
G3 Worker Bee
G3 Worker Bee (Gong-Feng or Gongfeng, 工蜂) is an unmanned helicopter of conventional helicopter layout, and landing gear system consists of a pair of skids. G3 Worker Bee utilizes commercial off-the-shelf subsystem to reduce cost and shorten the development cycle, resulting in the integration of Copterworks AF25B airframe and HeliAP autopilot. The GPS and inertial navigation system integration is indigenous Yotaisc, as with other subsystems such as other flight software. Specification: