Flyable working helicopter?

every one i’ve downloaded doesnt work, they dont even show up in the vehicles section! if they require other mods PLEASE SPECIFY!

http://www.garrysmod.org/downloads/?a=view&id=76605 That will show up in the entities tab.

http://www.garrysmod.org/img/?t=dll&id=84091
This pack has the updated version of the above.