Mach 4

Mach 4 or variant, may refer to:

Mach number for four times the speed of sound
- Supersonic speed of 4 times the speed of sound
MACH-4 (Marvel Comics), a comic book superhero
Fly Castelluccio Mach 4, a paramotor aircraft
Kawasaki H2 Mach IV, the "Mach IV" motorcycle
.17 Mach IV, the .17-calibre Mach IV center-fire rifle bullet
Mach IV, a personality rating on the rating scale Dark Triad Dirty Dozen
Mach 4, a version of the Mach microkernel developed at the University of Utah

See also