Matches in DBpedia 2016-04 for { ?s ?p "The HL-42 was a proposed scaled-up version of the HL-20 re-usable manned spaceplane design, which had been developed from 1983 to 1991 at NASA's Langley Research Center but never flown. Like the HL-20 (\"Horizontal Lander 20\"), the HL-42 would have been launched into low earth orbit mounted on top of a two-stage expendable rocket. At the end of the mission it would have re-entered and glided to a runway landing.The HL-42 was suggested as one possible successor to the Space Shuttle in the NASA Access to Space Study of 1994. In the event another alternative, a Single-stage-to-orbit design, was chosen for further development, and work on the HL-42 was abandoned."@en }
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- HL-42_(spacecraft) abstract "The HL-42 was a proposed scaled-up version of the HL-20 re-usable manned spaceplane design, which had been developed from 1983 to 1991 at NASA's Langley Research Center but never flown. Like the HL-20 (\"Horizontal Lander 20\"), the HL-42 would have been launched into low earth orbit mounted on top of a two-stage expendable rocket. At the end of the mission it would have re-entered and glided to a runway landing.The HL-42 was suggested as one possible successor to the Space Shuttle in the NASA Access to Space Study of 1994. In the event another alternative, a Single-stage-to-orbit design, was chosen for further development, and work on the HL-42 was abandoned.".