3 adjectives to describe trajectory

Man has, in its perfection, the rapid-firing rifle, which, with the use of smokeless powder, gives him an enormous increase of effectiveness in its flat trajectory.

What is certain is that half a hundred engines, each charged with several pounds of the explosive and of the substance that ensures a trajectory superior to that of any other projectile, are ready for their work of destruction.

Outdistancing pursuit as an eagle distances sparrows, the liner gloried in her swift trajectory.

3 adjectives to describe  trajectory