Let's assume you're two players, taking in turn to get two crates of Narcotics to get around the cooldown. One mission will generally take about 10 minutes - some faster, some slower. All in all, that means 25 supply missions - or about four hours - to fill the Hangar. To that then comes a similar amount of time spent helping your friend, or, if you play alone, do the same number of crates again.
In total, you're looking at $850,000 for about 8 hours work. You might think to yourself "that's not bad", but is it?
..not really. It's only about $100,000 per hour. I will give it that the bonuses makes it ever so slightly more profitable per minute than the Bunker, but let's, for the sake of science, compare it to another business that involves lots of crates.
Let's, for the sake of parity, assume that it'll also take a solo player about 10 minutes - cooldown included - which, all things considered, is perhaps a tad bit on the generous side, but we have also forgotten all about cooldown on the Hangar so that evens itself out - to source one of the classic Finance and Felony crates. Now, these do run off of a different, more dynamic system, but let's assume one was to start all over on a warehouse and thus get the "worst" crates.
When doing exclusively single crates, it'll take 53 resupplies to get to a profit above $850,000, making a profit of about $96,000 per hour. So it's sort of similar to the Hangar. Right?
..yes and no. Remember, this is for the bottom half of the warehouse value. Fill a warehouse up and you're looking at just over $100,000 per hour. So not the big differences so far.
Let's continue and assume, for the sake of the comparison, that the amount of time it takes to fill a Warehouse once and a Hangar twice is the same - again, given that the mission length + countdowns and all isn't too disssimilar + that you'd have to sell one Hangar, is probably not too far off. The most you can get from the Hangar is $1,700,000, whereas the Warehouse, again by doing single crates every time, gives $1,998,000 - about $300,000 or 17% more.
This has redeemed the Hangar business slightly, but there's still the behemoth that is Import/Export. Even with the nerf it got, meaning the cooldown is now sell time + cooldown, anyone should be able to get two cars in and out per hour - that's $160,000 per hour.
) the Cuban 800 and a Titan called "Big Red", Shows my creativity with names sometimes. 
) if that applies to all hangers, but if it's anything like the CEO offices, they should in theory all have the same capacity limit on the floor.
