Re: Ray's TAS shuttlecraft...
Here's an idea: the impulse engines could be incorporated into those little fin-lets on the lower rear-quarters of the craft. In a sense, that would make the ship's impulse drive into a kind of "nacelle" arrangement.
"The way that you wander is the way that you choose. / The day that you tarry is the day that you lose. / Sunshine or thunder, a man will always wonder / Where the fair wind blows ..."
-- Lyrics, Jeremiah Johnson's theme.