Matches in DBpedia 2015-10 for { ?s ?p "Grasshopper and the Falcon 9 Reusable Development Vehicles (F9R Dev) are experimental technology-demonstrator, suborbital reusable rockets that make vertical takeoffs and vertical landings.Two prototypes have been built to date, and both are ground-launched test vehicles for the broader SpaceX reusable launch system development program. A third prototype test vehicle was being built as of April 2014.Grasshopper was announced in 2011 and began low-altitude, low-velocity hover/landing testing in 2012. The initial Grasshopper test vehicle was 106 ft (32 m) tall and made eight successful test flights in 2012 and 2013 before being retired.A second Grasshopper-class prototype test vehicle design—the larger and more capable Falcon 9 Reusable Development Vehicle (F9R Dev) based on the larger Falcon 9 v1.1 launch vehicle form factor—will result in two additional VTVL test vehicles which will be used for testing at higher altitudes and supersonic speeds as well as additional low-altitude testing with the larger vehicle. The F9R Dev1 vehicle was built in 2013–2014 and made its first low-altitude flight test on 17 April 2014; it was lost during a three-engine test at the McGregor test site. A second F9R Development Vehicle—F9R Dev2—is currently being built.The Grasshopper and F9R Dev vehicles are being developed and tested by Space Exploration Technologies (SpaceX) in order to assist development of the reusable Falcon 9 and reusable Falcon Heavy rockets, which will require vertical landings of the near-empty Falcon 9 and Falcon Heavy first-stage booster tanks and engine assemblies. The project is privately funded by SpaceX, with no funds provided by the government.Grasshopper and F9R Dev are only two elements of the multi-element, incremental SpaceX reusable launch system development program test program, a program that includes Grasshopper and F9R Dev1 testing in low-altitude, low-velocity environments at the SpaceX Texas test site;high-altitude, mid-velocity testing of the F9R Dev2 test vehicle at Spaceport America in New Mexico;and high-altitude, high-speed controlled-descent tests of post-mission (spent) Falcon 9 booster stages on Falcon 9 missions that began in September 2013 and have continued into 2014."@en }
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- Grasshopper_(rocket) abstract "Grasshopper and the Falcon 9 Reusable Development Vehicles (F9R Dev) are experimental technology-demonstrator, suborbital reusable rockets that make vertical takeoffs and vertical landings.Two prototypes have been built to date, and both are ground-launched test vehicles for the broader SpaceX reusable launch system development program. A third prototype test vehicle was being built as of April 2014.Grasshopper was announced in 2011 and began low-altitude, low-velocity hover/landing testing in 2012. The initial Grasshopper test vehicle was 106 ft (32 m) tall and made eight successful test flights in 2012 and 2013 before being retired.A second Grasshopper-class prototype test vehicle design—the larger and more capable Falcon 9 Reusable Development Vehicle (F9R Dev) based on the larger Falcon 9 v1.1 launch vehicle form factor—will result in two additional VTVL test vehicles which will be used for testing at higher altitudes and supersonic speeds as well as additional low-altitude testing with the larger vehicle. The F9R Dev1 vehicle was built in 2013–2014 and made its first low-altitude flight test on 17 April 2014; it was lost during a three-engine test at the McGregor test site. A second F9R Development Vehicle—F9R Dev2—is currently being built.The Grasshopper and F9R Dev vehicles are being developed and tested by Space Exploration Technologies (SpaceX) in order to assist development of the reusable Falcon 9 and reusable Falcon Heavy rockets, which will require vertical landings of the near-empty Falcon 9 and Falcon Heavy first-stage booster tanks and engine assemblies. The project is privately funded by SpaceX, with no funds provided by the government.Grasshopper and F9R Dev are only two elements of the multi-element, incremental SpaceX reusable launch system development program test program, a program that includes Grasshopper and F9R Dev1 testing in low-altitude, low-velocity environments at the SpaceX Texas test site;high-altitude, mid-velocity testing of the F9R Dev2 test vehicle at Spaceport America in New Mexico;and high-altitude, high-speed controlled-descent tests of post-mission (spent) Falcon 9 booster stages on Falcon 9 missions that began in September 2013 and have continued into 2014.".