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            "@content":"CH46.x3d"
          },
          {
            "@name":"description",
            "@content":"Simplistic model of a CH-46 helicopter, which is a medium-lift rotary-wing aircraft used for carrying troops."
          },
          {
            "@name":"creator",
            "@content":"Capt Allen A. Harper"
          },
          {
            "@name":"created",
            "@content":"2 August 2001"
          },
          {
            "@name":"modified",
            "@content":"20 October 2019"
          },
          {
            "@name":"reference",
            "@content":"https://www.fas.org/man/dod-101/sys/ac/ch-46.htm"
          },
          {
            "@name":"subject",
            "@content":"military aircraft CH-46 CH46 rotary wing helicopter"
          },
          {
            "@name":"reference",
            "@content":"https://www.web3d.org/x3d/content/examples/Basic/UniversalMediaPanoramas/ocean3.x3d"
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            "@name":"license",
            "@content":"../../license.html"
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            "@name":"translated",
            "@content":"21 April 2026"
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          },
          {
            "#comment":"Viewpoint choices"
          },
          { "Viewpoint":
            {
              "@description":"CH-46 Front, level",
              "@position":[0,0,30]
            }
          },
          { "Viewpoint":
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              "@description":"CH-46 Front, angle down",
              "@orientation":[1,0,0,-0.78],
              "@position":[0,30,30]
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          { "Viewpoint":
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              "@description":"CH-46 Right wing, level",
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              "@position":[30,0,0]
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          },
          { "Viewpoint":
            {
              "@description":"CH-46 Rear, level",
              "@orientation":[0,1,0,3.14],
              "@position":[0,0,-30]
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          },
          { "Viewpoint":
            {
              "@description":"CH-46 Left wing, level",
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              "@position":[-30,0,0]
            }
          },
          { "Viewpoint":
            {
              "@description":"CH-46 Bottom, up",
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              "@position":[0,-30,0]
            }
          },
          { "Viewpoint":
            {
              "@description":"CH-46 Top, down",
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              "@position":[0,30,0]
            }
          },
          {
            "#comment":"Front Set of Blades"
          },
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              "@DEF":"Front_Rotors",
              "@rotation":[1,0,0,-1.60],
              "@translation":[0,2,-1],
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                    "@DEF":"Rotor",
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                          "-children":[
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                                "-geometry":
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                                "-appearance":
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                                            "@shininess":0.3
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                                  { "Appearance":
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                },
                {
                  "#comment":"Propeller sensor and interpolator"
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                    "@DEF":"Clock",
                    "@loop":true
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                },
                { "OrientationInterpolator":
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              "@toField":"set_rotation",
              "@toNode":"Rotor"
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          },
          {
            "#comment":"Rear Set of Blades"
          },
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            {
              "@DEF":"Rear_Rotors",
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              "@translation":[0,2.1,-1],
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                      },
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                      },
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                      }
                    ]
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                },
                {
                  "#comment":"Propeller sensor and interpolator"
                },
                { "TimeSensor":
                  {
                    "@DEF":"Clock2",
                    "@loop":true
                  }
                },
                { "OrientationInterpolator":
                  {
                    "@DEF":"RotorPath2",
                    "@key":[0.0,0.50,1.0],
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              "@toField":"set_rotation",
              "@toNode":"Rotor2"
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          },
          {
            "#comment":"Body of Aircraft"
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          { "Group":
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                { "Transform":
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                    "@rotation":[-1,0,0,1.57],
                    "@translation":[0,0,-0.6],
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                        "#comment":"Plane Main Body"
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                              {
                                "@height":13,
                                "@radius":2
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                    "@scale":[2.2,1.4,2.8],
                    "@translation":[0,-0.65,6.5],
                    "-children":[
                      {
                        "#comment":"Lower Nose Bubble"
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                          "-geometry":
                            { "Sphere":
                              {
                              }
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                          "-appearance":
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                },
                { "Transform":
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                    "@scale":[2.2,2,3],
                    "@translation":[0,0.5,5.0],
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                        "#comment":"Upper Nose Bubble"
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                        "#comment":"Rear Upper Bubble (Cowling)"
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                      { "Shape":
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                          "-geometry":
                            { "Sphere":
                              {
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                          "-appearance":
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                        "#comment":"Stabilizer Wing"
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                          "-geometry":
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                              {
                                "@radius":0.6
                              }
                            },
                          "-appearance":
                            { "Appearance":
                              {
                                "-material":
                                  { "Material":
                                    {
                                      "@diffuseColor":[0,0,0],
                                      "@shininess":0.5
                                    }
                                  }
                              }
                            }
                        }
                      }
                    ]
                  }
                },
                { "Transform":
                  {
                    "@rotation":[0,0,1,1.57],
                    "@scale":[1,0.2,1],
                    "@translation":[-2,0,0.7],
                    "-children":[
                      {
                        "#comment":"Side Bubble window"
                      },
                      { "Shape":
                        {
                          "-geometry":
                            { "Sphere":
                              {
                                "@radius":0.6
                              }
                            },
                          "-appearance":
                            { "Appearance":
                              {
                                "-material":
                                  { "Material":
                                    {
                                      "@diffuseColor":[0,0,0],
                                      "@shininess":0.5
                                    }
                                  }
                              }
                            }
                        }
                      }
                    ]
                  }
                },
                { "Transform":
                  {
                    "@rotation":[0,0,1,1.57],
                    "@scale":[1,0.2,1],
                    "@translation":[-2,0,-0.7],
                    "-children":[
                      {
                        "#comment":"Side Bubble window"
                      },
                      { "Shape":
                        {
                          "-geometry":
                            { "Sphere":
                              {
                                "@radius":0.6
                              }
                            },
                          "-appearance":
                            { "Appearance":
                              {
                                "-material":
                                  { "Material":
                                    {
                                      "@diffuseColor":[0,0,0],
                                      "@shininess":0.5
                                    }
                                  }
                              }
                            }
                        }
                      }
                    ]
                  }
                },
                { "Transform":
                  {
                    "@rotation":[0,0,1,1.57],
                    "@scale":[1,0.2,1],
                    "@translation":[-2,0,-3],
                    "-children":[
                      {
                        "#comment":"Side Bubble window"
                      },
                      { "Shape":
                        {
                          "-geometry":
                            { "Sphere":
                              {
                                "@radius":0.6
                              }
                            },
                          "-appearance":
                            { "Appearance":
                              {
                                "-material":
                                  { "Material":
                                    {
                                      "@diffuseColor":[0,0,0],
                                      "@shininess":0.5
                                    }
                                  }
                              }
                            }
                        }
                      }
                    ]
                  }
                },
                { "Transform":
                  {
                    "@rotation":[0,0,1,1.57],
                    "@scale":[1,0.2,1],
                    "@translation":[-2,0,3],
                    "-children":[
                      {
                        "#comment":"Side Bubble window"
                      },
                      { "Shape":
                        {
                          "-geometry":
                            { "Sphere":
                              {
                                "@radius":0.6
                              }
                            },
                          "-appearance":
                            { "Appearance":
                              {
                                "-material":
                                  { "Material":
                                    {
                                      "@diffuseColor":[0,0,0],
                                      "@shininess":0.5
                                    }
                                  }
                              }
                            }
                        }
                      }
                    ]
                  }
                },
                {
                  "#comment":"Model of wheel"
                },
                { "Transform":
                  {
                    "@rotation":[1,0,0,1.57],
                    "@translation":[0,-1.01,0],
                    "-children":[
                      { "Transform":
                        {
                          "@DEF":"BigWheel",
                          "-children":[
                            { "Transform":
                              {
                                "@rotation":[0,0,1,1.57],
                                "@scale":[0.15,0.15,0.15],
                                "-children":[
                                  { "Shape":
                                    {
                                      "-geometry":
                                        { "Extrusion":
                                          {
                                            "@beginCap":false,
                                            "@convex":false,
                                            "@creaseAngle":1.57,
                                            "@crossSection":[1.00,0.00,0.92,-0.38,0.71,-0.71,0.38,-0.92,0.00,-1.00,-0.38,-0.92,-0.71,-0.71,-0.92,-0.38,-1.00,-0.00,-0.92,0.38,-0.71,0.71,-0.38,0.92,0.00,1.00,0.38,0.92,0.71,0.71,0.92,0.38,1.00,0.00],
                                            "@endCap":false,
                                            "@spine":[2.00,0.0,0.00,1.85,0.0,0.77,1.41,0.0,1.41,0.77,0.0,1.85,0.00,0.0,2.00,-0.77,0.0,1.85,-1.41,0.0,1.41,-1.85,0.0,0.77,-2.00,0.0,0.00,-1.85,0.0,-0.77,-1.41,0.0,-1.41,-0.77,0.0,-1.85,0.00,0.0,-2.00,0.77,0.0,-1.85,1.41,0.0,-1.41,1.85,0.0,-0.77,2.00,0.0,0.00]
                                          }
                                        },
                                      "-appearance":
                                        { "Appearance":
                                          {
                                            "-material":
                                              { "Material":
                                                {
                                                  "@diffuseColor":[0.1,0.1,0.1]
                                                }
                                              }
                                          }
                                        }
                                    }
                                  }
                                ]
                              }
                            },
                            { "Transform":
                              {
                                "@rotation":[0,0,1,1.57],
                                "-children":[
                                  { "Shape":
                                    {
                                      "-geometry":
                                        { "Cylinder":
                                          {
                                            "@height":0.2,
                                            "@radius":0.15
                                          }
                                        },
                                      "-appearance":
                                        { "Appearance":
                                          {
                                            "-material":
                                              { "Material":
                                                {
                                                  "@diffuseColor":[0.8,0.8,0.8]
                                                }
                                              }
                                          }
                                        }
                                    }
                                  }
                                ]
                              }
                            }
                          ]
                        }
                      }
                    ]
                  }
                },
                {
                  "#comment":"Front Wheel and axle"
                },
                { "Transform":
                  {
                    "@DEF":"BackWheel",
                    "@center":[0,1,0],
                    "@translation":[0,-2,5],
                    "-children":[
                      { "Shape":
                        {
                          "-geometry":
                            { "Cylinder":
                              {
                                "@radius":0.07
                              }
                            },
                          "-appearance":
                            { "Appearance":
                              {
                                "-material":
                                  { "Material":
                                    {
                                      "@diffuseColor":[0.9,0.9,0.9]
                                    }
                                  }
                              }
                            }
                        }
                      },
                      { "Transform":
                        {
                          "@translation":[0,-1.01,0],
                          "-children":[
                            { "Transform":
                              {
                                "@rotation":[0,0,1,1.57],
                                "-children":[
                                  { "Shape":
                                    {
                                      "-geometry":
                                        { "Cylinder":
                                          {
                                            "@height":0.5,
                                            "@radius":0.07
                                          }
                                        },
                                      "-appearance":
                                        { "Appearance":
                                          {
                                            "-material":
                                              { "Material":
                                                {
                                                  "@diffuseColor":[0.8,0.8,0.8]
                                                }
                                              }
                                          }
                                        }
                                    }
                                  }
                                ]
                              }
                            }
                          ]
                        }
                      },
                      { "Transform":
                        {
                          "@rotation":[1,0,0,1.57],
                          "@translation":[0.25,-1.01,0],
                          "-children":[
                            { "Transform":
                              {
                                "@USE":"BigWheel"
                              }
                            }
                          ]
                        }
                      },
                      { "Transform":
                        {
                          "@rotation":[1,0,0,1.57],
                          "@translation":[-0.25,-1.01,0],
                          "-children":[
                            { "Transform":
                              {
                                "@USE":"BigWheel"
                              }
                            }
                          ]
                        }
                      }
                    ]
                  }
                },
                {
                  "#comment":"Rear Left Wheel and axle"
                },
                { "Transform":
                  {
                    "@DEF":"RearLeftWheel",
                    "@center":[0,1,0],
                    "@translation":[3,-1.5,-4],
                    "-children":[
                      { "Shape":
                        {
                          "-geometry":
                            { "Cylinder":
                              {
                                "@radius":0.07
                              }
                            },
                          "-appearance":
                            { "Appearance":
                              {
                                "-material":
                                  { "Material":
                                    {
                                      "@diffuseColor":[0.9,0.9,0.9]
                                    }
                                  }
                              }
                            }
                        }
                      },
                      { "Transform":
                        {
                          "@translation":[0,-1.01,0],
                          "-children":[
                            { "Transform":
                              {
                                "@rotation":[0,0,1,1.57],
                                "-children":[
                                  { "Shape":
                                    {
                                      "-geometry":
                                        { "Cylinder":
                                          {
                                            "@height":0.5,
                                            "@radius":0.07
                                          }
                                        },
                                      "-appearance":
                                        { "Appearance":
                                          {
                                            "-material":
                                              { "Material":
                                                {
                                                  "@diffuseColor":[0.8,0.8,0.8]
                                                }
                                              }
                                          }
                                        }
                                    }
                                  }
                                ]
                              }
                            }
                          ]
                        }
                      },
                      { "Transform":
                        {
                          "@rotation":[1,0,0,1.57],
                          "@translation":[0.25,-1.01,0],
                          "-children":[
                            { "Transform":
                              {
                                "@USE":"BigWheel"
                              }
                            }
                          ]
                        }
                      },
                      { "Transform":
                        {
                          "@rotation":[1,0,0,1.57],
                          "@translation":[-0.25,-1.01,0],
                          "-children":[
                            { "Transform":
                              {
                                "@USE":"BigWheel"
                              }
                            }
                          ]
                        }
                      }
                    ]
                  }
                },
                {
                  "#comment":"Rear Right Wheel and axle"
                },
                { "Transform":
                  {
                    "@DEF":"RearRightWheel",
                    "@center":[0,1,0],
                    "@translation":[-3,-1.5,-4],
                    "-children":[
                      { "Shape":
                        {
                          "-geometry":
                            { "Cylinder":
                              {
                                "@radius":0.07
                              }
                            },
                          "-appearance":
                            { "Appearance":
                              {
                                "-material":
                                  { "Material":
                                    {
                                      "@diffuseColor":[0.9,0.9,0.9]
                                    }
                                  }
                              }
                            }
                        }
                      },
                      { "Transform":
                        {
                          "@translation":[0,-1.01,0],
                          "-children":[
                            { "Transform":
                              {
                                "@rotation":[0,0,1,1.57],
                                "-children":[
                                  { "Shape":
                                    {
                                      "-geometry":
                                        { "Cylinder":
                                          {
                                            "@height":0.5,
                                            "@radius":0.07
                                          }
                                        },
                                      "-appearance":
                                        { "Appearance":
                                          {
                                            "-material":
                                              { "Material":
                                                {
                                                  "@diffuseColor":[0.8,0.8,0.8]
                                                }
                                              }
                                          }
                                        }
                                    }
                                  }
                                ]
                              }
                            }
                          ]
                        }
                      },
                      { "Transform":
                        {
                          "@rotation":[1,0,0,1.57],
                          "@translation":[0.25,-1.01,0],
                          "-children":[
                            { "Transform":
                              {
                                "@USE":"BigWheel"
                              }
                            }
                          ]
                        }
                      },
                      { "Transform":
                        {
                          "@rotation":[1,0,0,1.57],
                          "@translation":[-0.25,-1.01,0],
                          "-children":[
                            { "Transform":
                              {
                                "@USE":"BigWheel"
                              }
                            }
                          ]
                        }
                      }
                    ]
                  }
                }
              ]
            }
          }
        ]
    }
  }
}