Ackermand et al.(2006): Lazulite-bearing metaquartzite of the Itremo Group (Central Madagascar); Scientific significance and economic importance in Proceedings of the Malagasy-German Research Cooperation in Life and Earth sciences, 5-18
The fastest fighter aircraft is the MiG 25, with speeds topping at Mach 3.2 (2,450 mph/4,000 km/h). Pilots were not allowed to go beyond Mach 2.8. Above Mach 2.8, the engines would overheat and burn up.
Susan Hassler: When we think air dominance, the F-22 Raptor zooms to mind. At 1500 miles an hour, itâs the U.S. militaryâs fastest airborne fighting machine. To check it out, we sent Sue Karlin to Edwards Air Force Base, in Californiaâs Mojave Desert, and to Nellis Air Force Base, in Las Vegas.