The Mikoyan-Gurevich project 1.44

well, see for yourself;
in the Air:

from takeoff: (Ramjet being ignited at about 180 km/h)

Sure, you can light it, but it’s not going to be efficient.

“interpretacion libre” = free interpretation
that’s not a manufacturer drawing, just an artist’s rendidition of what he/she thinks it looks like in the inside.