then you'll need more than 2 orbits worth of life support and quite a bit of maneuvering capability. He also wants a 6 month on orbit life. Given what Bigelow is looking for, those are reasonable requirements. Still, we need a lot more detail. For example, what orbital inclination is Bigelow planning for his modules? That makes a lot of difference when it comes to launch sites and lifting capacity. What are the average passenger weights? If they're planning on using the FAA standard 180 pound passenger weight, will they also need to allow for space suits? Is there a payload requirement other than just the passengers, such as logistics?

Of course, this contest is in the very early stages, but if he wants to have the first flight in just over 5 years, he needs to hammer out some of these details. Burt will need some good numbers for his design. ;}