Replying from a previous post:
1) as mentioned above, all measurements are in si system
Correct. I use meters and kilometers. Some people in US can't understand the system (to the amazement of the other countries since it's so easy!). But that's a dif subject. Use all SI system for all calculations since it's not only meters used on Dogfight for physics.
2) the distance between north base nd the south base is clearly mentioned as 4 km in practice mission 2.
hmm i wrote that as an approximation. The exact distance is known, but if i disclose it, this thread wouldn't be as much fun
3) the game doesnt follow some laws of motion like the plane or the bomb doesnt accelerate while falling down.
wrong. The game has lot of physics incorporated. The bomb and airplane do accelerate while falling, at the acceleration speed of gravity 9.81 m/s2 and it is based in 3 things: first, weight of the object, two, air resistance and third, air density at height. So... as you saw on mr felix jump from the edge of space... the higher you are, the less air density which means the resistance is lower and you fall way faster. The closer you get to land, air density is higher and resistance too, meaning you fall slower. There is a point where you cannot fall faster because the air is stopping you, that's called the maximum speed or terminal speed.
Yes, that's all implemented on that little phone of yours
as a note, it used to be way more realistic on the first versions of Dogfight but people complained that physics were wrong and the game sucked. So I had to change it to a more fake system that adjust to how most similators work = not that realistic. To give you an example, when you turn left on a real airplane, the airplane slides through air until it rotates. So if you turn left, your plane may not actually turn left for at least 100 meters. That's how Dogfight used to be too. But people are used to turning left and seeing it turn left, almost like a train on rails, so they complained. I had to change it to something in between, faking the air density to be much higher so that the airplane "sticks" to the air and turns way faster than a real plane.
4) the bomb should travel along the direction in which the plan was travelling just before the bomb was dropped.
it does. It's called inertia. If you drop the bomb at high speed right on top of a point you will see it going to your same direction for a while until air resistance slows it to only vertical (gravitational force).
When I wrote Dogfight I had to read ton of stuff about aerodynamics. Things like this:
en.wikipedia.org/wiki/Lift-induced_drag
In Dogfight, wings have a contact surface (each wing, even the body of the plane), they also have angles of attack, drag, lift, and so on. Even the propeller follows a formula to calculate at what speed it is rotating and what trust it provides on air. The higher it goes, since the air is less dense, it pushes less = propeller can't generate enough trust, and the airplane stalls. That's why there is a ceiling on the game, like any real propeller airplane, they can't go above to a point where the air is not dense enough.
You can calculate all that if you feel inclined