RocketAcademy writes "The test article for Sierra Nevada's Dream Chaser spacecraft suffered a landing accident on Saturday when the left main landing gear failed to deploy, causing the vehicle to flip over. NBC News quotes a Sierra Nevada engineer saying that the pilot would have walked away. Sierra Nevada Corporation is developing the Dream Chaser to support the International Space Station as part of NASA's Commercial Crew and Cargo program. It is not yet known what effect the mishap will have on Dream Chaser development. A number of rocket vehicles have suffered landing-gear mishaps in the recent past. Several years ago, concerns over spacecraft gear design led to a call for NASA to fund a technology prize for robust, light-weight landing gear concepts."