In article fb24780f-4c50-4ff9-bce6-
, says...

coud the liquid fly back booster have been intergrated with the ET
making it all reusable'

No, because then it wouldn't be a booster.

The tank and boosters would remain together till they got over the
indian ocean.

Or the shuttle could of flown on top of the booster and ET

The numbers wouldn't work.

Jeff
--
"the perennial claim that hypersonic airbreathing propulsion would
magically make space launch cheaper is nonsense -- LOX is much cheaper
than advanced airbreathing engines, and so are the tanks to put it in
and the extra thrust to carry it." - Henry Spencer