Actually in an episode of the series it is mentioned that Voyager was designed specifically for Combat Performance.
Nope, not really. Rather, a
joke is made on how the ship wasn't designed for musical performance.
We never learn on screen what the mission profile of the
Voyager was (combat, exploration and couriering are all witnessed on screen, whereas planetary survey, the mission profile of the
Equinox, is treated as different from the mission profile of the hero ship). We never learn what her official designation might be (light cruiser, heavy scout, pink corsair and fast penetration yacht are all equally possible). We never learn what the aims and goals of her designers were, or which of her varying attributes such as speed, agility or landing capability are primary criteria and which are compromise-ridden afterthoughts.