Those two issues have been covered in the current answer. The biggest issue I see is that you infer that a horizontal stabilizer is needed for a delta wing, and the designers decided to remove it, that's not the case. Delta wings don't need horizontal stabilizer except when high maneuverability is needed like the MiG-21.

IMO in its current state the question is unanswerable because of the underlying wrong claim, which can itself be probed by its own standalone question if you wish.

by unanswerable, I mean the bounty notice:

> Looking for an explanation of why the design team chose not to use horizontal stabilizers.

as it stands, I find the current answer very satisfactory

@ymb1 the question is not built on the wrong premise: it never states that fuel transfer is used for pitch control. It states that fuel transfer is used for trim control. The problem with the current answer is that it does not explain why the designers made that choice, it merely restates the fact that pitch control is achieved by elevons.

If the designers chose not to use a horizontal stabilizer, then it implies by some reason, they conclude that using a horizontal stabilizer for trim control is inferior in a Concorde design, and the benefit of shifting fuel back and forth is worth the complexity.

@kevin here is what I read that made me say so regarding the 2 wrong premises:

> The Concorde did not have horizontal stabilizers or elevators

and

> pilots have to move fuel around the aircraft to trim it up or down

elevons are elevators, and pilots don't move fuel for trim (in the Cessna trim-tab sense)

you say the designers must have concluded a H/S is not needed -- if you rephrase the question to how does the Concorde control its pitch, it'll be the same answer (elevons) -- with no mention of fuel transfer (trim CG is a long term cruise thing, also has to do with the lift shifting position aft as the plane goes supersonic), see here: aviation.stackexchange.com/a/36698/14897

@kevin perhaps you mean how do delta winged aircraft in general trim the pitch? (just to confirm again: short-term pitch trim is not done by fuel transfer on the Concorde)

image source: en.wikipedia.org/wiki/…

majority of deltas are tailless

@kevin based on your input here, I provided an answer that I hope is helpful -- and I'm happy to discuss it here