Carrier deck altitude question

All aircraft (types) landing on the Langley will have a different "cockpit" (ASL) altitude. COP's Arrester Zone or Catapult zone:CarrierIdent=USS Langley CVL-27 for example.RunwayHeadingInDegreesMag=150DeckAltInFeet=53I noticed that 53 feet is the TBM-3 Avengers cockpit (ASL) altitude for launch and trap.So, the deck altitude of the Langley should be less.The deck altitude should be a constant for the arrester/cat zones for all aircraft types.Otherwise, there would have to be a different arrester / cat zone defined for each aircraft type.So the question is.Is the DeckAltInFeet value (accuracy) used for calculations or events in the simulation?