What is the size and weight of the Corsair (AKA CrashAir)? <--- This is your hint to pack this plane up and put it in the closet, get a 40 size trainer such as this
http://www2.towerhobbies.com/cgi-bin...&I=LXCAS2&P=ML
or this if you want everything
http://www2.towerhobbies.com/cgi-bin...=LXCXF4**&P=ML
Then go out get with a local club and an instructor.
Not doing so will result in the same fate for you F4U as you lil Cub even if you master flying that Cub first.
Blunt and straight forward but I mean you no disrespect. Flying R/C planes is a learned skill and while you can learn on your own it's a lot less expensive with an instructor.

Good luck, have fun, don't quit!