That's the TMP Asia Class. I made a hull for an Asia model. Normally I use a cylinder with quite a few length segments, and then extrude the front a few times to get the deflector shape right, and as for the aft end, I did it the cheap and easy way, I just hinged along the center edge to create a dome, scaled it to get the shape more or less right, and then created a spline in the left profile window to match the curve of the cove of the hull (that part on the bottom aft that looks like someone cut out a major part of the ship), and then used the spline to cut out the shape from the hull.