Yes! Jetstream speeds of well over 300 km/h have been recorded. If even a normal plane (capable of flying that high) were to reduce thrust appropriately then, flying into such a jetstream, it could certainly stand still in the sky - relative to the land that is!
First of all there are two kinds of planes (aircrafts):
1. Fixed wing aircrafts (Any airplane that has wings)
2. Rotary wing aircrafts (Helicopters)
All aircrafts require something called lift to sty in the air. This is provided when the wing are in motion.
In a fixed wing aircraft the wings move forward and lift is created. So a fixed wing aircraft must keep moving in order to generate lift.
But in a Helicopter the rotor blades are the wings and they are rotated to generate lift. Only the rotor blades will be in motion and not the helicopter. So the helicopter will not move and will be in the same place.
I hope this helped!
Good Luck!!!!
Only if it has some form of thrust to offset the weight. This usually means a rotor (like a helicopter), or turbine exhaust (like a Harrier).
They are called VTOL (see http://en.wikipedia.org/wiki/VTOL). Examples of VTOL that are in operation today are V-22 Osprey, Harrier and F-35.
can plane be stopped in the sky