Review of the JJRC H8C

[TJ Wright]

Another great product from JJRC ??????? This quadcopter is a great size for indoors or beginners..and yet powerful enough to hold its own outside also.....HOWEVER..........
Cons are few...but the battery and charging needs to be addressed a bit..
This unit has the battery inside the body and is NOT designed for quick change of spent battery..
the plug on the factory battery is very small and NOT like the usual 1s lipo it plugs directly onto the board and a cover is placed on top...NOT very user friendly.....I made an adapter for my neighbor so he can use 1s 150 mah batteries designed for the H8 Mini, of which we both have on hand..
The Camera on this bird needs mentioning...out of the box..it made such a horrible electronic scream which was recorded on the sd card with the video, that it was painful to even watch...and the factory improperly glued in the ccd lens so the image was skewed right and angled way down..and partially obscured the view......making it unusable for all intensive purposes......I had to disassemble the copter within 10 minutes of receiving it just to correct this...after removing camera and ccd.....reinstalling properly......and re securing......The noise went away, and the image is perfect....

 

[RAnst4038]

What Really Kills The Motors. When searching for small DC brushed motors in this class there are only 2 to pick from. The 8.5mm round & the ones with flattened sides. Both are rated at 6 volts max & were designed in pre Li-Po days for Ni-Cads. The 8.5 x 20mm motors in the H8C & D have microscopic reed brushes which are split in half leaving two hairs running on a pentagon shaped commutator at up to 14,000 rpm. What really kills them is any power at all when they are locked rotor. Those 2 hair sitting on a point of the commutator last milliseconds.

If you want to save the motors you have to be at 0 throttle the moment you even think you're gonna crash. And in general can’t give any throttle unless you are sure all props are 100% free to spin. And don't slam them to 100% on takeoff. The prop guards help a little with ground but not with bushes & trees.

 

[TJ Wright]

What Really Kills The Motors. When searching for small DC brushed motors in this class there are only 2 to pick from. The 8.5mm round & the ones with flattened sides. Both are rated at 6 volts max & were designed in pre Li-Po days for Ni-Cads. The 8.5 x 20mm motors in the H8C & D have microscopic reed brushes which are split in half leaving two hairs running on a pentagon shaped commutator at up to 14,000 rpm. What really kills them is any power at all when they are locked rotor. Those 2 hair sitting on a point of the commutator last milliseconds.

If you want to save the motors you have to be at 0 throttle the moment you even think you're gonna crash. And in general can’t give any throttle unless you are sure all props are 100% free to spin. And don't slam them to 100% on takeoff. The prop guards help a little with ground but not with bushes & trees.

I have absolutely NO Idea what you are talking about...or even how anything you just said has anything to do with the thread post......We kinda like to stick to ONE subject at a time...and make our posts, make sense, according to the subject YOU replied or commented on.....