Pak Da, New Russian Bomber ‘Will Not be Hypersonic’

"PAK-DA, currently under development, will not be hypersonic," Lt. Gen. Anatoly Zhikharev told RIA Novosti on Wednesday.

The first prototype PAK-DA is due to enter service around 2020, he added.

Hypersonic speeds are high supersonic, usually referring to Mach five and above, which can usually only be generated using advanced propulsion technology such as ramjet or scramjet engines. No manned aircraft has yet been flown using such technologies, which are on the cutting edge of aerospace know-how.



Read more: http://www.defencetalk.com/new-russian-bomber-will-not-be-hypersonic-45484/#ixzz2CHPDZlrb