diff --git a/src/main/scala/net/psforever/objects/GlobalDefinitions.scala b/src/main/scala/net/psforever/objects/GlobalDefinitions.scala
index 1bf22116..827ceea8 100644
--- a/src/main/scala/net/psforever/objects/GlobalDefinitions.scala
+++ b/src/main/scala/net/psforever/objects/GlobalDefinitions.scala
@@ -1875,6 +1875,8 @@ object GlobalDefinitions {
 
   /**
     * Using the definition for a `Vehicle` determine whether it can fly.
+    * Does not count the flying battleframe robotics vehicles.
+    * @see `isBattleFrameFlightVehicle`
     * @param vdef the `VehicleDefinition` of the vehicle
     * @return `true`, if it is; `false`, otherwise
     */
@@ -1929,6 +1931,7 @@ object GlobalDefinitions {
   /**
     * Using the definition for a `Vehicle` determine whether it is a frame vehicle,
     * primarily a flight-variant battleframe vehicle.
+    * @see `isFlightVehicle`
     * @param vdef the `VehicleDefinition` of the vehicle
     * @return `true`, if it is; `false`, otherwise
     */
@@ -8623,7 +8626,7 @@ object GlobalDefinitions {
     }
     aphelion_gunner.DrownAtMaxDepth = true
     aphelion_gunner.MaxDepth = 5.09375f
-    aphelion_gunner.UnderwaterLifespan(suffocation = 6000L, recovery = 6000L)
+    aphelion_gunner.UnderwaterLifespan(suffocation = 60000L, recovery = 30000L)
     aphelion_gunner.Geometry = GeometryForm.representByCylinder(radius = 1.2618f, height = 6.01562f)
     aphelion_gunner.collision.avatarCollisionDamageMax = 300
     aphelion_gunner.collision.xy = CollisionXYData(Array((0.2f, 1), (0.35f, 5), (0.55f, 20), (0.75f, 40), (1f, 60)))
@@ -8674,7 +8677,7 @@ object GlobalDefinitions {
     }
     colossus_gunner.DrownAtMaxDepth = true
     colossus_gunner.MaxDepth = 5.515625f
-    colossus_gunner.UnderwaterLifespan(suffocation = 6000L, recovery = 6000L)
+    colossus_gunner.UnderwaterLifespan(suffocation = 60000L, recovery = 30000L)
     colossus_gunner.Geometry = GeometryForm.representByCylinder(radius = 3.60935f, height = 5.984375f)
     colossus_gunner.collision.avatarCollisionDamageMax = 300
     colossus_gunner.collision.xy = CollisionXYData(Array((0.2f, 1), (0.35f, 5), (0.55f, 20), (0.75f, 40), (1f, 60)))
@@ -8725,7 +8728,7 @@ object GlobalDefinitions {
     }
     peregrine_gunner.DrownAtMaxDepth = true
     peregrine_gunner.MaxDepth = 6.03125f
-    peregrine_gunner.UnderwaterLifespan(suffocation = 6000L, recovery = 6000L)
+    peregrine_gunner.UnderwaterLifespan(suffocation = 60000L, recovery = 30000L)
     peregrine_gunner.Geometry = GeometryForm.representByCylinder(radius = 3.60935f, height = 6.421875f)
     peregrine_gunner.collision.avatarCollisionDamageMax = 300
     peregrine_gunner.collision.xy = CollisionXYData(Array((0.2f, 1), (0.35f, 5), (0.55f, 20), (0.75f, 40), (1f, 60)))
@@ -8775,7 +8778,7 @@ object GlobalDefinitions {
     }
     aphelion_flight.DrownAtMaxDepth = true
     aphelion_flight.MaxDepth = 5.09375f
-    aphelion_flight.UnderwaterLifespan(suffocation = 6000L, recovery = 6000L)
+    aphelion_flight.UnderwaterLifespan(suffocation = 60000L, recovery = 30000L)
     aphelion_flight.Geometry = GeometryForm.representByCylinder(radius = 1.98045f, height = 6.03125f)
     aphelion_flight.MaxCapacitor = 156
     aphelion_flight.DefaultCapacitor = aphelion_flight.MaxCapacitor
@@ -8829,7 +8832,7 @@ object GlobalDefinitions {
     }
     colossus_flight.DrownAtMaxDepth = true
     colossus_flight.MaxDepth = 5.515625f
-    colossus_flight.UnderwaterLifespan(suffocation = 6000L, recovery = 6000L)
+    colossus_flight.UnderwaterLifespan(suffocation = 60000L, recovery = 30000L)
     colossus_flight.Geometry = GeometryForm.representByCylinder(radius = 3.60935f, height = 5.984375f)
     colossus_flight.MaxCapacitor = 156
     colossus_flight.DefaultCapacitor = aphelion_flight.MaxCapacitor
@@ -8883,7 +8886,7 @@ object GlobalDefinitions {
     }
     peregrine_flight.DrownAtMaxDepth = true
     peregrine_flight.MaxDepth = 6.03125f
-    peregrine_flight.UnderwaterLifespan(suffocation = 6000L, recovery = 6000L)
+    peregrine_flight.UnderwaterLifespan(suffocation = 60000L, recovery = 30000L)
     peregrine_flight.Geometry = GeometryForm.representByCylinder(radius = 3.60935f, height = 6.421875f)
     peregrine_flight.MaxCapacitor = 156
     peregrine_flight.DefaultCapacitor = aphelion_flight.MaxCapacitor
diff --git a/src/main/scala/net/psforever/objects/vehicles/control/VehicleControl.scala b/src/main/scala/net/psforever/objects/vehicles/control/VehicleControl.scala
index 4e263b17..5b8981cd 100644
--- a/src/main/scala/net/psforever/objects/vehicles/control/VehicleControl.scala
+++ b/src/main/scala/net/psforever/objects/vehicles/control/VehicleControl.scala
@@ -82,7 +82,7 @@ class VehicleControl(vehicle: Vehicle)
   SetInteraction(EnvironmentAttribute.Lava, doInteractingWithLava)
   SetInteraction(EnvironmentAttribute.Death, doInteractingWithDeath)
   SetInteraction(EnvironmentAttribute.MovementFieldTrigger, doInteractingWithMovementTrigger)
-  if (!vehicle.Definition.CanFly || GlobalDefinitions.isBattleFrameFlightVehicle(vehicle.Definition)) {
+  if (!GlobalDefinitions.isFlightVehicle(vehicle.Definition)) {
     //can recover from sinking disability
     SetInteractionStop(EnvironmentAttribute.Water, stopInteractingWithWater)
   }
@@ -584,7 +584,7 @@ class VehicleControl(vehicle: Vehicle)
   def doInteractingWithWater(obj: PlanetSideServerObject, body: PieceOfEnvironment, data: Option[OxygenStateTarget]): Unit = {
     val (effect: Boolean, time: Long, percentage: Float) = {
       val (a, b, c) = RespondsToZoneEnvironment.drowningInWateryConditions(obj, submergedCondition, interactionTime)
-      if (a && vehicle.Definition.CanFly && !GlobalDefinitions.isBattleFrameFlightVehicle(vehicle.Definition)) {
+      if (a && GlobalDefinitions.isFlightVehicle(vehicle.Definition)) {
         (true, 0L, 0f) //no progress bar
       } else {
         (a, b, c)
@@ -594,7 +594,7 @@ class VehicleControl(vehicle: Vehicle)
       import scala.concurrent.ExecutionContext.Implicits.global
       submergedCondition = Some(OxygenState.Suffocation)
       interactionTime = System.currentTimeMillis() + time
-      interactionTimer = context.system.scheduler.scheduleOnce(delay = time milliseconds, self, VehicleControl.Disable())
+      interactionTimer = context.system.scheduler.scheduleOnce(delay = time.milliseconds, self, VehicleControl.Disable())
       doInteractingWithWaterToTargets(
         percentage,
         body,
@@ -760,7 +760,7 @@ class VehicleControl(vehicle: Vehicle)
           case Some(body) =>
             val percentage: Float = {
               val (a, _, c) = RespondsToZoneEnvironment.drowningInWateryConditions(vehicle, submergedCondition, interactionTime)
-              if (a && vehicle.Definition.CanFly) {
+              if (a && GlobalDefinitions.isFlightVehicle(vehicle.Definition)) {
                 0f //no progress bar
               } else {
                 c