{ "X3D": {
    "encoding":"UTF-8",
    "@profile":"Interchange",
    "@version":"3.0",
    "@xsd:noNamespaceSchemaLocation":"https://www.web3d.org/specifications/x3d-3.0.xsd",
    "JSON schema":"https://www.web3d.org/specifications/x3d-4.0-JSONSchema.autogenerated.json",
    "head": {
        "meta": [
          {
            "@name":"title",
            "@content":"CH53eSimple.x3d"
          },
          {
            "@name":"creator",
            "@content":"Jeff Lark"
          },
          {
            "@name":"created",
            "@content":"20 September 2000"
          },
          {
            "@name":"modified",
            "@content":"20 October 2019"
          },
          {
            "@name":"description",
            "@content":"Simple helicopter model."
          },
          {
            "@name":"identifier",
            "@content":"https://www.web3d.org/x3d/content/examples/Savage/AircraftHelicopters/CH53UnitedStates/CH53eSimple.x3d"
          },
          {
            "@name":"generator",
            "@content":"X3D-Edit 3.2, https://www.web3d.org/x3d/tools/X3D-Edit"
          },
          {
            "@name":"license",
            "@content":"../../license.html"
          },
          {
            "@name":"translated",
            "@content":"21 April 2026"
          },
          {
            "@name":"generator",
            "@content":"X3dToJson.xslt, https://www.web3d.org/x3d/stylesheets/X3dToJson.html"
          },
          {
            "@name":"reference",
            "@content":"X3D JSON encoding: https://www.web3d.org/wiki/index.php/X3D_JSON_Encoding"
          }
        ]
    },
    "Scene": {
        "-children":[
          { "WorldInfo":
            {
              "@title":"CH53eSimple.x3d"
            }
          },
          { "Group":
            {
              "-children":[
                { "Transform":
                  {
                    "@rotation":[1,0,0,-1.57],
                    "@translation":[0,5,0],
                    "-children":[
                      { "Group":
                        {
                          "-children":[
                            { "Transform":
                              {
                                "@DEF":"Rotor_System",
                                "-children":[
                                  { "Transform":
                                    {
                                      "@DEF":"RotorBlade",
                                      "@scale":[9,0.65,0.2],
                                      "@translation":[15,0.2,0],
                                      "-children":[
                                        { "Shape":
                                          {
                                            "@DEF":"Blade1",
                                            "-geometry":
                                              { "Box":
                                                {
                                                }
                                              },
                                            "-appearance":
                                              { "Appearance":
                                                {
                                                  "-material":
                                                    { "Material":
                                                      {
                                                        "@diffuseColor":[0.5,0.3,0.8]
                                                      }
                                                    }
                                                }
                                              }
                                          }
                                        },
                                        { "Transform":
                                          {
                                            "@DEF":"Blade_Root",
                                            "@rotation":[0,0,1,1.5702],
                                            "@scale":[0.7,0.4,0.4],
                                            "@translation":[-1.0,0.2,0],
                                            "-children":[
                                              { "Shape":
                                                {
                                                  "@DEF":"BladeRoot",
                                                  "-geometry":
                                                    { "Cylinder":
                                                      {
                                                        "@height":0.7
                                                      }
                                                    },
                                                  "-appearance":
                                                    { "Appearance":
                                                      {
                                                        "-material":
                                                          { "Material":
                                                            {
                                                              "@emissiveColor":[0.5,0.5,0.5]
                                                            }
                                                          }
                                                      }
                                                    }
                                                }
                                              }
                                            ]
                                          }
                                        }
                                      ]
                                    }
                                  },
                                  { "Transform":
                                    {
                                      "@DEF":"Blade2",
                                      "@rotation":[0,0,1,0.8],
                                      "-children":[
                                        { "Transform":
                                          {
                                            "@USE":"RotorBlade"
                                          }
                                        }
                                      ]
                                    }
                                  },
                                  { "Transform":
                                    {
                                      "@DEF":"Blade3",
                                      "@rotation":[0,0,1,1.79],
                                      "-children":[
                                        { "Transform":
                                          {
                                            "@USE":"RotorBlade"
                                          }
                                        }
                                      ]
                                    }
                                  },
                                  { "Transform":
                                    {
                                      "@DEF":"Blade4",
                                      "@rotation":[0,0,1,2.69],
                                      "-children":[
                                        { "Transform":
                                          {
                                            "@USE":"RotorBlade"
                                          }
                                        }
                                      ]
                                    }
                                  },
                                  { "Transform":
                                    {
                                      "@DEF":"Blade5",
                                      "@rotation":[0,0,1,3.59],
                                      "-children":[
                                        { "Transform":
                                          {
                                            "@USE":"RotorBlade"
                                          }
                                        }
                                      ]
                                    }
                                  },
                                  { "Transform":
                                    {
                                      "@DEF":"Blade6",
                                      "@rotation":[0,0,1,4.48],
                                      "-children":[
                                        { "Transform":
                                          {
                                            "@USE":"RotorBlade"
                                          }
                                        }
                                      ]
                                    }
                                  },
                                  { "Transform":
                                    {
                                      "@DEF":"Blade7",
                                      "@rotation":[0,0,1,5.48],
                                      "-children":[
                                        { "Transform":
                                          {
                                            "@USE":"RotorBlade"
                                          }
                                        }
                                      ]
                                    }
                                  },
                                  { "Transform":
                                    {
                                      "-children":[
                                        { "Transform":
                                          {
                                            "@DEF":"RotorHub",
                                            "@rotation":[1,0,0,1.5702],
                                            "-children":[
                                              { "Shape":
                                                {
                                                  "-geometry":
                                                    { "Cylinder":
                                                      {
                                                        "@height":1.5,
                                                        "@radius":4.6
                                                      }
                                                    },
                                                  "-appearance":
                                                    { "Appearance":
                                                      {
                                                        "-material":
                                                          { "Material":
                                                            {
                                                            }
                                                          }
                                                      }
                                                    }
                                                }
                                              },
                                              { "Transform":
                                                {
                                                  "@translation":[0,1.5,0],
                                                  "-children":[
                                                    { "Shape":
                                                      {
                                                        "-geometry":
                                                          { "Cone":
                                                            {
                                                              "@bottomRadius":4,
                                                              "@height":1
                                                            }
                                                          },
                                                        "-appearance":
                                                          { "Appearance":
                                                            {
                                                              "-material":
                                                                { "Material":
                                                                  {
                                                                    "@diffuseColor":[0.4,0.6,0.5]
                                                                  }
                                                                }
                                                            }
                                                          }
                                                      }
                                                    }
                                                  ]
                                                }
                                              }
                                            ]
                                          }
                                        },
                                        { "Transform":
                                          {
                                            "@DEF":"RotorMast",
                                            "@rotation":[1,0,0,1.5702],
                                            "@translation":[0,0,-1],
                                            "-children":[
                                              { "Shape":
                                                {
                                                  "-geometry":
                                                    { "Cylinder":
                                                      {
                                                        "@height":4,
                                                        "@radius":0.8
                                                      }
                                                    },
                                                  "-appearance":
                                                    { "Appearance":
                                                      {
                                                        "-material":
                                                          { "Material":
                                                            {
                                                              "@emissiveColor":[0.5,0.7,0.3]
                                                            }
                                                          }
                                                      }
                                                    }
                                                }
                                              }
                                            ]
                                          }
                                        }
                                      ]
                                    }
                                  }
                                ]
                              }
                            },
                            { "Transform":
                              {
                                "@DEF":"TailRotor",
                                "@rotation":[1,0,0,1.57],
                                "@translation":[4.5,34,2.5],
                                "-children":[
                                  {
                                    "#comment":"Tail rotor and blades 1/4 size MR and rotated -20 deg in Z axis"
                                  },
                                  { "Transform":
                                    {
                                      "@DEF":"Tail_Blade",
                                      "@rotation":[0,0,1,1.5702],
                                      "@scale":[0.25,0.25,0.25],
                                      "-children":[
                                        { "Transform":
                                          {
                                            "@USE":"RotorBlade"
                                          }
                                        }
                                      ]
                                    }
                                  },
                                  { "Transform":
                                    {
                                      "@rotation":[0,0,1,3.14],
                                      "@scale":[0.25,0.25,0.25],
                                      "-children":[
                                        { "Transform":
                                          {
                                            "@USE":"RotorBlade"
                                          }
                                        }
                                      ]
                                    }
                                  },
                                  { "Transform":
                                    {
                                      "@rotation":[0,0,1,4.71],
                                      "@scale":[0.25,0.25,0.25],
                                      "-children":[
                                        { "Transform":
                                          {
                                            "@USE":"RotorBlade"
                                          }
                                        }
                                      ]
                                    }
                                  },
                                  { "Transform":
                                    {
                                      "@scale":[0.25,0.25,0.25],
                                      "-children":[
                                        { "Transform":
                                          {
                                            "@USE":"RotorBlade"
                                          }
                                        }
                                      ]
                                    }
                                  },
                                  { "Transform":
                                    {
                                      "@DEF":"Tail_Hub",
                                      "-children":[
                                        { "Transform":
                                          {
                                            "@scale":[0.25,0.25,0.25],
                                            "-children":[
                                              { "Transform":
                                                {
                                                  "@USE":"RotorBlade"
                                                }
                                              }
                                            ]
                                          }
                                        }
                                      ]
                                    }
                                  }
                                ]
                              }
                            },
                            { "Transform":
                              {
                                "@DEF":"Fuselage_Pylons",
                                "-children":[
                                  { "Transform":
                                    {
                                      "@translation":[0,-13.0,-5.6],
                                      "-children":[
                                        { "Shape":
                                          {
                                            "-geometry":
                                              { "Sphere":
                                                {
                                                  "@radius":2
                                                }
                                              },
                                            "-appearance":
                                              { "Appearance":
                                                {
                                                  "-material":
                                                    { "Material":
                                                      {
                                                        "@diffuseColor":[0.8,0.8,0.5],
                                                        "@emissiveColor":[0,0,1],
                                                        "@shininess":0.25,
                                                        "@transparency":0.05
                                                      }
                                                    }
                                                }
                                              }
                                          }
                                        }
                                      ]
                                    }
                                  },
                                  { "Transform":
                                    {
                                      "@rotation":[1,0,0,1.5702],
                                      "@scale":[1.8,1.2,7],
                                      "@translation":[0,4.8,-7.2],
                                      "-children":[
                                        { "Shape":
                                          {
                                            "-geometry":
                                              { "Sphere":
                                                {
                                                  "@radius":3
                                                }
                                              },
                                            "-appearance":
                                              { "Appearance":
                                                {
                                                  "-material":
                                                    { "Material":
                                                      {
                                                        "@diffuseColor":[0.2,0.4,0.8]
                                                      }
                                                    }
                                                }
                                              }
                                          }
                                        }
                                      ]
                                    }
                                  },
                                  { "Transform":
                                    {
                                      "@DEF":"Main_Tail_Pylon",
                                      "@translation":[0,0.5,0],
                                      "-children":[
                                        { "Transform":
                                          {
                                            "@scale":[0.7,1,0.3],
                                            "@translation":[0,9,-4.5],
                                            "-children":[
                                              { "Shape":
                                                {
                                                  "@DEF":"Pylon",
                                                  "-geometry":
                                                    { "Cylinder":
                                                      {
                                                        "@height":45,
                                                        "@radius":4
                                                      }
                                                    },
                                                  "-appearance":
                                                    { "Appearance":
                                                      {
                                                        "-material":
                                                          { "Material":
                                                            {
                                                            }
                                                          }
                                                      }
                                                    }
                                                }
                                              }
                                            ]
                                          }
                                        },
                                        { "Transform":
                                          {
                                            "@rotation":[0,1,0,0.39],
                                            "@translation":[1.7,0,0],
                                            "-children":[
                                              { "Transform":
                                                {
                                                  "@rotation":[1,0,0,0.95],
                                                  "@scale":[0.3,0.2,0.4],
                                                  "@translation":[0,33,-1],
                                                  "-children":[
                                                    { "Shape":
                                                      {
                                                        "@USE":"Pylon"
                                                      }
                                                    }
                                                  ]
                                                }
                                              }
                                            ]
                                          }
                                        }
                                      ]
                                    }
                                  }
                                ]
                              }
                            },
                            { "Transform":
                              {
                                "-children":[
                                  { "Transform":
                                    {
                                      "@DEF":"Engines",
                                      "-children":[
                                        { "Transform":
                                          {
                                            "@translation":[5,0,-3],
                                            "-children":[
                                              { "Shape":
                                                {
                                                  "@DEF":"Engine",
                                                  "-geometry":
                                                    { "Cylinder":
                                                      {
                                                        "@height":10,
                                                        "@radius":0.8
                                                      }
                                                    },
                                                  "-appearance":
                                                    { "Appearance":
                                                      {
                                                        "-material":
                                                          { "Material":
                                                            {
                                                            }
                                                          }
                                                      }
                                                    }
                                                }
                                              }
                                            ]
                                          }
                                        },
                                        { "Transform":
                                          {
                                            "@DEF":"Engine2",
                                            "@translation":[3.5,3,-2],
                                            "-children":[
                                              { "Shape":
                                                {
                                                  "@USE":"Engine"
                                                }
                                              }
                                            ]
                                          }
                                        },
                                        { "Transform":
                                          {
                                            "@DEF":"Engine3",
                                            "@translation":[-5,0,-3],
                                            "-children":[
                                              { "Shape":
                                                {
                                                  "@USE":"Engine"
                                                }
                                              }
                                            ]
                                          }
                                        }
                                      ]
                                    }
                                  }
                                ]
                              }
                            }
                          ]
                        }
                      }
                    ]
                  }
                },
                {
                  "#comment":"Able to get the right orientation by making my original group a child to a senior group. Need to change the orientation of viewpoint because they are now part of the parent group Tried playing with \"inlines\" but was geting parsing errors Rotation for tail-when rotation applied, the tail was somehow oriented in the same plane as the main rotor."
                }
              ]
            }
          },
          { "Background":
            {
              "@groundAngle":[1.309,1.5702],
              "@groundColor":[0.1,0.1,0.0,0.4,0.25,0.2,0.6,0.60,0.6],
              "@skyAngle":[1.309,1.571],
              "@skyColor":[0.0,0.2,0.7,0.0,0.5,1.0,1.0,1.0,1.0]
            }
          },
          { "Viewpoint":
            {
              "@DEF":"Front",
              "@description":"Front",
              "@orientation":[1,0,0,0.1],
              "@position":[0,0,60]
            }
          },
          { "Viewpoint":
            {
              "@DEF":"Bottom",
              "@description":"Bottom",
              "@fieldOfView":0.985398,
              "@orientation":[1,0,0,1.57],
              "@position":[0,-70,7]
            }
          },
          { "Viewpoint":
            {
              "@DEF":"Left_Side",
              "@description":"Left_Side",
              "@orientation":[0,1,0,1.57],
              "@position":[60,0,0]
            }
          },
          { "TimeSensor":
            {
              "@DEF":"Clock",
              "@loop":true
            }
          },
          { "OrientationInterpolator":
            {
              "@DEF":"SpinRotor",
              "@key":[0.0,0.5,1.0],
              "@keyValue":[0,0,1,0.0,0,0,1,3.14,0,0,1,6.28]
            }
          },
          { "OrientationInterpolator":
            {
              "@DEF":"SpinTail",
              "@key":[0.0,0.5,1.0],
              "@keyValue":[0,0,1,0.0,0,0,1,3.14,0,0,1,6.28]
            }
          },
          { "ROUTE":
            {
              "@fromField":"fraction_changed",
              "@fromNode":"Clock",
              "@toField":"set_fraction",
              "@toNode":"SpinRotor"
            }
          },
          { "ROUTE":
            {
              "@fromField":"fraction_changed",
              "@fromNode":"Clock",
              "@toField":"set_fraction",
              "@toNode":"SpinTail"
            }
          },
          { "ROUTE":
            {
              "@fromField":"value_changed",
              "@fromNode":"SpinRotor",
              "@toField":"set_rotation",
              "@toNode":"Rotor_System"
            }
          },
          { "ROUTE":
            {
              "@fromField":"value_changed",
              "@fromNode":"SpinTail",
              "@toField":"set_rotation",
              "@toNode":"TailRotor"
            }
          }
        ]
    }
  }
}