Top critical review
13 people found this helpful
Exercise in frustration and sixty bucks down the drain
on April 1, 2015
I was a complete newbie to RC flying and thought the U818 would be a good place to start considering the number of 5 star reviews and the low price but alas this was not the case. Like a lot of other cheap products produced in China it is a total crap shoot as to whether you get a good or bad one. First off I did not experience any of the out of box problems that others are reporting. The battery charged properly and all four rotors worked and turned in the proper direction. The transmitter synced without issue and the gyro appeared to calibrate per the instructions. At this point I was getting excited, just maybe I got one of the good ones. The excitement soon faded when I attempted to achieve a stable hover indoors.. The copter took off straight up to about 3 ft and then started to veer to the left until I hit a wall. At this point I thought okay this should be easily corrected by some simple trim adjustments but this proved to be futile as even though all three trim adjusters did make changes to the direction no matter how I tweaked them I could not get a stable hover for more than about 15 seconds before veering off in some random direction and hitting something. Not being the type of person that gives up easily I turned to the Internet for some guidance. There are numerous hits when you search, but the R/C forums seem to have the best info on things you can try to fix various issues including achieving a stable hover. I tried them all, from removing the outer blade guard shell to trying different gyro calibration techniques but all to no avail. Obviously since so many people are able to fly these things successfully there must be something wrong with mine but, at least for me, it's just not worth the time and expense to return it so at this point I am throwing in the towel. To sum up, if you are the gambling type, and won't cry over a $60 loss go ahead and buy one, maybe you will get lucky and join the ranks of the 5 star reviewers.
Update to my review:
For those that have given up trying to fly one these and haven't pitched it in the trash yet, try this. I glued the end of a 20 ft kite string to the center of the camera and tied the other end to a dumbbell laying on the ground, creating a tether to keep the copter from flying off. It worked pretty good. I slowly gave it about half throttle and it rose up until the slack went out of the string and actually seemed to hover fairly stable without any trimming. I didn't try it but am certain if I cut the string it would make an uncontrollable bee line to the nearest tree. Of course basically all I have now is a $60 dollar electric kite but at least I have been having some fun shooting some video albeit in a stationary view. One side note I was only able to make this work by removing the blade guard. With it on it immediately dove to one side and crashed when I applied throttle.