It's not a coax, but I just picked up a 4-ch FP single rotor from Radio Shack of all places
Stopped in to see if they had any tiny plugs for PCs to use in my Wessex for the battery and LEDs and saw an AirHogs Reflex chopper on sale for $39.99. Willpower? I'm not familiar with that term...
Good bird! Feels weird to "steer" with the left stick, but got the hang of it quickly. Only 2 flights so far but it's a fun change of pace from my S107, 6010s, non-gyro 3-ers etc. Supposedly this guy is capable of impressive moves with practice.
150mAH LiPo (only can charge from the 4xAA'd TX but people are working on USB/AC mods) and weighs in at ~23g.
Well designed and built transmitter to boot!
main thread here:
There is apparently a $10 RS coupon if you take an online survey and have purchased something from RS in the past 5 days. I haven't been in there in years.... and frankly don't know how they're still in business lol