They will show as part of a NavalUnit:
An example is below:
[NavalUnit001] UnitName=USS Bon Homme Richard Carrier Group ForceID=1 Nation=USN RandomChance=100 MaxObjects=5 Experience=100 Morale=100 Supply=100 Intelligence=0 RetireDate=9/1967 StartPosition=592000.00,618000.00 ObjectivePosition=592000.00,618000.00 HomePortPosition=200000.0,260000.0 MinFleetSpeed=10.289 Ship[01].Type=CVA-31L Ship[01].Name=USS Bon Homme Richard Ship[01].Number=31 Ship[01].Texture=USNGrey31L Ship[02].Type=GearingFRAM1B Ship[02].Name=USS Charles R. Ware Ship[02].Number=865 Ship[02].Texture=USNGrey Ship[03].Type=GearingFRAM1B Ship[03].Name=USS Forrest Royal Ship[03].Number=872 Ship[03].Texture=USNGrey Ship[04].Type=DDG-2 Ship[04].Name=USS Barney Ship[04].Number=6 Ship[04].Texture=Gray Ship[05].Type=DDG-2 Ship[05].Name=USS Waddell
Ship[05].Number=24 Ship[05].Texture=Gray
Then the aircraft must point to the NavalUnit so:
[AirUnit001] AircraftType=A-4E_65 Squadron=VA212 ForceID=1 Nation=USN StartDate=02/1967 RetireDate=09/1967 DefaultTexture=VA212 StartNumber=0 NavalUnitID=001 ShipID=1 CarrierBased=TRUE BaseMoveChance=0 RandomChance=100 MaxAircraft=12 StartAircraft=12 MaxPilots=12 StartPilots=12 Experience=100 Morale=100 Supply=100 MissionChance[sWEEP]=0 MissionChance[CAP]=0 MissionChance[iNTERCEPT]=0 MissionChance[ESCORT]=0 MissionChance=100 MissionChance[CAS]=20 MissionChance[sEAD]=20 MissionChance[ARMED_RECON]=50 MissionChance[ANTI_SHIP]=40 MissionChance[RECON]=0 UpgradeType=NEVER
And in the campaign, this statement:
StartDate=26/01/1967 StartDateDeviation=0 EndDate=25/08/1967 RunCampaignBeforePlayerStart=FALSE ForceWithInitiative=1 NavalCampaign=TRUE MaxMissions=50 NormalMissionRate=180