http://www.ebay.com/itm/Cox-Apache-Control-Line-Helicopter/330819253248?_trksid=p3984.m2048&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D17903%26meid%3D1561892086855347809%26pid%3D100022%26prg%3D8261%26rk%3D3%26rkt%3D3%26sd%3D251268700832%26

Here's an item I had not seen before.  Cox control line Apache Helicopter.

I have one and it pretty much flies like doo-doo. I picked it up at a toy store going out of business sale for $10. If there is any wind at all ,as soon as you fly into it, it climbs straight up and crashes on the downwind side. If you want one to fly this is not it. If its for a Cox collection I get it. CL auto-gyros are cool but you are better off building one from plans if you are gonna fly it.  Mike