This one is more highly detailed, and uses the new engines, and is overall more realistic. I dont know where the roundel came from, its been in my subbasembilys a while. It has two bombs. Now for the boring stuff: . The NB-36H was converted from a B-36H that had been damaged by a tornado. The original crew and avionics cabin was replaced by a massive lead and rubber lined 11 ton crew section for a pilot, copilot, flight engineer and two nuclear engineers. Even the small windows had 10-12 inch thick lead glass.[1][2][3][4] Unlike the planned Convair X-6, the th hree-megawatt air-cooled reactor in the NB-36H did not power any of the aircraft's systems, nor did it provide propulsion, but was placed on the NB-36H to measure the effectiveness of the shielding.[1]