where the satellite or canister was offloaded onto a truck and then loaded immediately onto a running C-141 airlifter and then transported to a location in Maryland for analysis. The crews acquired these skills by practicing almost daily on practice missions, carried out with other aircraft dropping dummy bombs with chutes attached. The weights were 200 lb. in the early 70s and later to the conical parachute system which weighed in at 1,100 lb. In a similar vein to Corona, the Soviet Zenit spy satellites were recovered in midair by modified Mil Mi-8 helicopters. At the White Sands Missile Range, prototype ballistic missile warheads and rocket nose cones were retrieved after suborbital test flights. Sikorsky CH-37 Mojave helicopters were used to recover the nose cones in midair so the effects of re-entry could be studied. The Genesis mission returned a sample of solar wind particles in a "particle trap" device that was so delicate, that it would have been damaged by a parachute landing. This task called for a plan involving a mid-air retrieval, using helicopters flown by Hollywood stunt pilots contracted by NASA. Its parachutes failed to deploy, leading to a disastrous high speed impact with the desert floor, which shattered the trap's delicate wafers holding the solar wind particle samples. An early design for SpaceShipOne called for a shuttlecock-like shape that would have made it incapable of landing independently, necessitating mid-air retrieval. This was deemed too risky, and the final design made the spacecraft capable of independent horizontal landing while retaining the desired aerodynamic qualities for the early part of reentry. During the Cold War, Lockheed HC-130 Hercules and Fairchild C-119 Flying Boxcar airlifters were used to recover film capsules ejected from unmanned high-altitude reconnaissance balloons under programs such as Project Genetrix and Project Moby Dick. The C-130 was also used to recover film capsules ejected from the experimental Lockheed D-21 high-speed reconnaissance drone. The United Launch Alliance's proposed Vulcan rocket is intended to have the main engines on its first stage recovered in midair by helicopter so that it can be reused for further launches. NASA operated a Shorts Skyvan airplane nicknamed the “Ugly Hooker”, which was used for several years to recover instrument packages ejected from sounding rockets and unmanned research balloons. The Dynetics X-61 reconnaissance drone is intended to be launched from a carrier aircraft and recovered in midair after their mission by a modified