Every sci-fi needs a good spaceship

In book one: Endeavors Run, I have two different space ships. The starship Endeavor is where a lot of the action takes place, but not all. Actually much of it takes place on the shuttles that have the ability, unlike the Endeavor, to leave orbit, fly in the atmosphere, and even land on the surface. (No transporter beams in my AD 3200 century) These small craft called an OVAL. (Orbital Vehicle & Atmospheric Lander) However, this name might be a bit misleading, because instead of the oval shape...