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FYFT E-series unmanned blimps are Chinese UAVs developed by Qingdao Co., Ltd. Fei-Yu Aviation Science and Technology Co., Ltd. , and these unmanned blimps are often named after their respective length. For example: if an E6 series blimp is 7 meter long, then it is named E6-700, because 7 meter is equal to 700 millimeter.
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