Correct - the hanger can only accommodate the biplane. That having been said, in order to accommodate the other aircraft too the hangar would have to be huge, with an enormous footprint, and a substantially increased parts count. As a result, I'd estimate a price up to double the current RRP which I suspect few of the target market would pay. LEGO therefore got the size of the hanger right IMHO.
While I like their characters, I really don’t like LEGO recycling their characters. I can make an exception for Bucky, who until this year has only been made available as a pretty exclusive (and pricey) polybag but having this exact same Captain America show up in so many sets is pretty damn lazy. If a super hero minifig has been used a year ago, it really isn’t too much to ask for LEGO to update it slightly.
Agent 13 has a pretty plain appearance, with caramel-coloured wavy hair, and a black, spy-like top. Her torso has some nice details, with sharp, angular lines that all combine to form a rough outline of an upside down star. She has plain sand blue pants and rocks a sub-machine gun accessory. I like regular LEGO firearms, so it’s very nice to get one in this set as they’re fairly uncommon.