{
  "type": "object",
  "description": "The engine determines how quickly a ship travels between waypoints.",
  "properties": {
    "symbol": {
      "type": "string",
      "enum": [
        "ENGINE_IMPULSE_DRIVE_I",
        "ENGINE_ION_DRIVE_I",
        "ENGINE_ION_DRIVE_II",
        "ENGINE_HYPER_DRIVE_I"
      ]
    },
    "name": {
      "type": "string"
    },
    "description": {
      "type": "string"
    },
    "condition": {
      "$ref": "./ShipCondition.json"
    },
    "speed": {
      "type": "integer",
      "minimum": 1
    },
    "requirements": {
      "$ref": "./ShipRequirements.json"
    }
  },
  "required": [
    "symbol",
    "name",
    "description",
    "speed",
    "requirements"
  ]
}