Challenge for inverted Hovering RCヘリの背面ホバリングはうまくいくか？

skytd915
views: 16
Video location
Video Source: View
Added: 2015-02-18 05:36:00 (GMT)
Category: Autos & Vehicles
Keywords: challenge, inverted, hovering, rc
Location: 1485 Miyabarachō, Choshi, Chiba 288-0877, Japan
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