They don't. Thems 4 x 30,000lb thrust Afterburners. At low level (200-500ft), they mask themselves by flying nap of the Earth (terrain following using the mountains to hide in) at a max speed of Mach .9Wow, never would have thought I could hear them that far away. The sound was very low frequency and you could almost feel it. It sounded just as loud inside as outside the house. Sound came thru the walls like a jakebrake on the Hwy.
How do they sneak up on anybody flying those.?
They carry nearly twice the payload of B-52s'. That takes a SH*T load of power