I just flew from Newark to Honolulu and brought my Phantom 2 Vision. I have a Tradecraft XRV hard case. While waiting to board the plane a gate agent spotted it. He explained to me that United is "cracking down" on oversized carry ons so he made me put it into one of the bins to see if it fits. It does not since it is a couple inches too big on all sides. They checked it for free for me which was no problem. Just take out the LiPo's and carry them on. As far as TSA goes - Newark could not care less and it sailed through. In Honolulu, they swiped it for gunpowder and then asked me a bunch of questions because they were interested and wanted to get one. All in all, it was not a problem to bring and the Tradecraft case was great but may be a problem as a carry on depending on the airline.