KerbalX

Capable of flying between any two points on Kerbin, the HyperLiner transports up to 160 passengers at mach 3+. The most fuel-efficient procedure is to shut down a pair of engines once you have reached the cruising speed of ~1500 m/s. When landing or on approach, it is recommended to shut down all but one pair of engines. As more fuel is burnt, the top speed increases significantly, as does the altitude limit.

The standard takeoff procedure is to wait until about 75 m/s and then pull the stick all the way back, and then keep your nose high enough that you don’t lose altitude but low enough that you constantly gain airspeed

Note that despite the particles shown, the HyperLiner is in fact powered by WHIPLASHes, not panthers.

Word of warning: do not pitch full up while moving at top speed, ESPECIALLY not if you are also physics warping. The wings will rip into pieces.