http://2.bp.blogspot.com/-KMi5_1Jd0Uc/T ... 82_091.jpg
re: the hangar slope, this might explain it: the hangar stops earlier. it looks like an construction to keep the weight lower by spreading the point the load is given trough from structure to hull (making the hull lighter by letting the structure add to the strength, in other words) I cannot think of any other reason for this, it certainly isn't stealth.