When working with a score PDF, keep in mind:
A soaring, fanfare-like motif first introduced by a solo trumpet roughly 120 seconds into the work. Why Musicians (and Audiences) Love It
The middle section provides the necessary emotional contrast. The score thins out significantly here. The frenetic tempo subsides, allowing the woodwinds to shine. This section represents the "stillness" of the sky or perhaps the sentimental thoughts of a pilot far from home.