Ain't gonna work
First, an .049 won't have enough power.
Second, there IS a type of physics you're overlooking.
You are assuming that this thig is going to go whichever way you point it.
What about prop torque?
ok, forget the torque, have you ever been driving down the freeway and let go of the steering wheel? Did the car keep going
exactly straight?
When going vertical this is amplified, once it goes SLIGHTLY to either side, gravity will keep pulling it to that side until it is coming straight down (at you with a spinning propeller!).
And I won't even MENTION what an uneven surface Tree Bark is!