If weight was canceled as you're implying, there would be no inertia.
Inertia depends solely on the forces operating on an object at any given time. An object can have 0 weight (outside significant gravitational pull) yet still experience inertia (from thrusters and other such forces). I mentioned that some people refer to kilograms as a weight (you), which is wrong.
Yes. Kilograms is a measure of mass. I realize I got them mixed up in my previous post. I meant to say that that your aircraft exerts a force of 65000 N on whichever surface it is resting on, and that this force is then eventually canceled out by other forces (like lift). All I'm concerned about is getting the unit of measurements right in the lift/drag formulas.
Then stick to SI units religiously. That's 36741 pounds of force.
Well yes, but what did we just agree on with regards to using SI units? Particularly you should stay away from "pounds" as that can be used to mean both mass and force and the two are not immediately comparable. Weight is the force of gravity acting on the object's mass.
In which case then yes, you are correct.