Again, I'm with Bookworm.
It really is depressing how much people misunderstand Newton.
Even the RAF have it wrong (I used to teach air cadets, and their manual has the same mix up!).
The equal and opposite the the gravitional force of the earth on the aircraft is:
The gravitational force of the aircraft acting on the earth.
Think about the moon. Not only is it pulled towards the earth by gravity, but the Earth is pulled towards the moon.
Good thing its in Orbit really (Itchy and Scratchy).
If you jump out of an aircraft, not only do you fall towards the Earth, but the Earth falls towards you. The gravitational force is equal and opposite.
Thing is, Earth has more mass, you have relatively little. Newton also tells us F=MA, so you do most of the accelerating.
Eat lots of crewfood till you weigh the same as the Earth. Then, if you jump out, you'll meet the Earth half way.
Acheo.
Vector is an amount and a direction, not a Force and a direction.
A force is a vector, but there are many other vector quantities.
Velocity. Acceleration. Momentum.
All the rotational equivalents, to name a few.
CPB