Definitions for "Air trap"
Unintentional void in a rubber molding.
1) the aftward continuation of the inside vertical "walls" of the sponsons, forming tunnel sides and channeling high-pressure air forced underneath by the boat's shape and forward motion; 2) the inside vertical "wall" of sponson and air trap from bow to stern; the tunnel side.
An area between and behind the sponsons which traps the air cushion on which the hydro rests at speed.
A device incorporated in some types of mercury barometer to prevent air or other gaseous impurities from entering into the vacuum space.
A U-shaped pipe filled with water and located beneath plumbing fixtures to form a seal against the passage of gases and odors