I did enjoy this reply with its creative flare, but I also question whether it should be considered an answer all it's own. I think it's actually fantastic, however, I also think that it would be useful to require the more flamboyant, non-standard answers like this to at least have a line at the bottom that summarized for clarity.
I think simply adding something along the lines of "In conclusion, of course it is possible. Provided you have enough wine and a well placed fireball!" which is implying the answer "If you have dragons, you are already breaking the rules of reality so I don't see why not, especially in the context of the fantasy world you're designing," would suffice for clarity in this case.
It may not be the "best" answer for the questioner, seeing as OP wanted to design a physically plausible dragon with added capabilities for rear aimed jet propulsion, but that doesn't mean that the story is not useful as an answer for someone who is not abundantly concerned with adhering to reality. It is an additional perspective that might assist one who likes the idea of flatulent based travel on their dragons, but is more concerned about how silly it would seem to write.
That's my two cents anyway. The story answer isn't 100% the clearest answer, but certainly not worthy of deletion and has merit for broadening the question and answer's scope of usefulness, which I believe is the ultimate goal.
Unrelated: I cannot believe someone has not added a comment linking the Blue-Eyes White Jet with the caption "Seto Kaiba has logged in." XD