This is the second third and forth flights of the torrent by horizon hobby. I am quite pleased with this quad, there are only a few things I would change on it.
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https://www.youtube.com/watch?v=BXHmZbRbV0M
A brand new lipo that turns out to be bad. It happens though rarely, we will see how Ho-b Max handles this.
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https://www.youtube.com/watch?v=lWuqyiyIn8k