{
  "$type": "site.standard.document",
  "description": "Systems and methods for detecting runway conditions are disclosed. A weight on wheel system may determine that an aircraft (100; 510) is on the ground. Wheel speed sensors (322; 324; 326; 328) may measure the speed of the aircraft wheels. Axle reference speeds may be calculated for each landing…",
  "path": "/patents/925069",
  "publishedAt": "2017-06-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T8/1703",
    "GOODRICH CORP [US]"
  ],
  "textContent": "Systems and methods for detecting runway conditions are disclosed. A weight on wheel system may determine that an aircraft (100; 510) is on the ground. Wheel speed sensors (322; 324; 326; 328) may measure the speed of the aircraft wheels. Axle reference speeds may be calculated for each landing gear (110; 120; 130) based on the speed of the aircraft wheels. A weight on wheel time limit may be reached prior to the axle reference speeds reaching an on ground threshold. A brake control unit (310) may determine that the runway (50; 520) is contaminated if the on ground threshold was not reached.",
  "title": "SYSTEM AND METHOD FOR DETECTING BAD RUNWAY CONDITIONS"
}