Helicopters has a limited range compared to planes. Planes need a long pave to operate while helicopters can take off and land a lot more places. Also helicopters can "stand still" in the air while planes need to move all the time.
So depending on what you want to do they have different (dis)advantages.
Planes have large wings, Helicopters have rotors
Advantages time saving speed very big industry- creates lots of jobs Disadvantages costly on your pockets costly on environment
No, there are many more planes flying for longer periods than helicopters.
Planes cannot land straight up and down
there are no propllers on planes but there are on helicopters
Yes, especially helicopters.
They make both.
With the exception of certain jump jets, helicopters can land easier than planes and better maneuverability. Planes are much faster and can carry stronger air to air weapons or bombs, but helicopters have better air to ground precision weapons. Helicopters are better for ground force support. helicopter requires less space instead of planes.
you can't get in planes in GTAIV but you can get in helicopters, the same way you would get in a car.
No planes only helicopters
Advantages of Air Planes- They can get you to places all over the world. They can get you to places in the same country quicker than by getting there by car. They are safer than cars or trains or most other transport open to public. They help you travel for business. Service on planes are usually very good. Disadvantages of Air Planes- They are quite expensive to fly on. They are bad for the environment.
No planes, sadly. Only helicopters.