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Q & A
に基づいて 4 お客様の評価
By Andrew B
October 6, 2017
Bought this from a small shop in Shanghai. I was looking for a decent, entry level quadcopter that I wouldn't worry too much about crashing, and that's what I got. This quad is easy to fly, and addictively fun. Once you figure out how to zero the gyro*, it's easy to get in the air and start spinning. Controls: Intuitive and easy to pick up and learn. The main challenges are throttle control and orientation. Until you get the hang of the throttle, it's easy to let the quad start climbing and then fall to the earth as you zero the throttle. If the quad gets spun around and you don't correct it, it's easy to miscorrect and run the quad where it shouldn't be - just ask the bush I smacked into earlier today. The controls have three speeds, slow medium and fast, which affect yaw (spin) rate and transverse (forward/back/left/right) rates. Generally, if I have space to fly, I like the fast setting, as it's more flexible. However, due to the quad's somewhat low thrust, flying at the fast setting will cause you to lose altitude quickly in deep turns. The flip button on the controller works great. You let go of the transverse stick, press the flip button, and flick the transverse stick in the direction to flip, and the quad will make a quick flip in that direction. It works well, but it's not easy to make a flip while the quad is moving. You have to make some major speed before flipping if you want to make those sick midflight flips. Build: Surprisingly robust for the price. It's two plastic halves, with all internals sandwiched in-between. The propellers ride in nice bronze bushings and spin with very little friction. The motors are geared down to the propellers, with lightweight plastic gears. I found that a bit of teflon or other plastic-safe grease improved the power a bit. The propellers are a semiflexible plastic that responds well to crashes - if they fail, though, they tend to split at the hub, and the small screw connecting the prop to the shaft will be gone unless you've got good luck. Everything is lightweight and acceptably rigid for the price. I wish it came with extra screws, though, because of their tendency to disappear when a prop breaks. Power/battery: The weakest part of this quad, in my opinion, is the power, or lack thereof. It's certainly capable. It can climb and transverse at decent rates, but you won't be going up at more than a couple mph, especially as the battery gets low. It can get pretty quick in the transverses, but doesn't have enough power to keep altitude when transversing at speed. The battery life is as expected, about 5 minutes of heavy flying or around 8 minutes of slow flying before the low battery alarm kicks in, and the quad's LEDs start blinking to warn you. I'm probably going to get a couple extra batteries, because flying for a few minutes and then waiting an hour for a charge gets old quickly. As always, the battery should be charged in a "LiPo bag", or at least outside in a cinder-brick, for safety, and keep an eye on it while charging. It's a low risk, but even a small LiPo battery fire can be devastating. Safety first. Accessories: The quad comes with a pair of landing gear, four extra propellers, and four propeller guards. I found the landing gear to be unnecessary after learning the controls, and the weight of them isn't negligible - I found that I got 15-30 seconds more flight time without them. The propellers are a must-have, because make no mistake, the props WILL break. I bought a bunch of extra propellers so I don't worry so much about crashes. The propeller guards are important because they cover the otherwise exposed gear drives. I found that without them, the quad flies much more quickly and flies more resposively, and gets a small boost in battery life - that is, if you don't fly even crazier without them. However, a crash without them is nigh-guaranteed to break a prop, and any grass will find its way into the gears and prop. I covered the gears with small, taped-on paper covers to keep debris out. In short, in my limited experience with quadcopters, this is a good entry-level buy to wet your toes with and see if the hobby is for you. It flies well and is easy to learn. It's robust to survive most crashes with no more than a broken prop, while being lightweight. I wish it were more powerful for the weight and size, but the lack of power can be a boon for learning to fly. I would buy an extra battery or two, maybe an extra charger, and some spare propellers. It might be necessary to source some extra screws for the quad. *To zero the gyro, plug the battery into the quad and place it on level ground. Then, turn on the controller and connect to quad, push the throttle to max and then back to zero, and put the left stick to the bottom left and the right stick to the bottom right. The controller will blink twice, and the quad's LEDs will blink. Not the quad should fly level.
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