{ "items" : [
    { "id" : "http://dbpedia.org/resource/Mil_V-7"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "The Mil V-7 was an unusual experimental four-seat helicopter with AI-7 ramjets at the tips of the two rotor blades. It had an egg-shaped fuselage, skid undercarriage, and a two-bladed tail rotor on a short tubular tail boom. Only one prototype was built, in the late 1950s.Technical data for Mil V-7: Engine: 2 x AI-7 Rotor diameter: 11.6m Loaded weight: 835 kg Empty weight: 730 kg↑ ↑" ] ,
        "http://dbpedia.org/ontology/manufacturer" : [ "http://dbpedia.org/resource/Mil_Moscow_Helicopter_Plant" ] ,
        "http://dbpedia.org/ontology/numberBuilt" : [ 1] } } }
