How make heat shield on space shuttle

You can use clipped inlets, but this does cause significant Z-flighting though.
https://en.m.wikipedia.org/wiki/Z-fighting

@FriendlyFin kool, thanks

you could also set the texture to insulation, if you wanted

@FriendlyFin k thanks

@AshtvinayakAerospace i mean, the black underside

use black wing panels and put their heat shield to max

Increase the heat shield slider to full