Hobbies And Interests
Leanest Mixtures
ADI allows the fuel mixture to be as lean as possible for maximum power. It provides higher manifold pressures and lower maximum temperatures in the engine, as the water is turned to cooling vapor. The water takes the place of excess fuel that is wasted by the engine, conserving fuel.
Detonation
Detonation is defined as the sudden explosive burning of the mixture of fuel and air in the engine. This explosion can cause damage to the pistons, rings and cylinders, and if it is big powerful enough, create a hole in the engine.
Use on Aircraft
ADI is typically used during takeoff on civilian aircraft. The ADI system is armed before takeoff and disarmed after. The system has a specific manifold pressure, over which ADI would begin. Takeoff is the phase most likely to experience this, and, according to a NASA report, it is not beneficial to continue using ADI after maximum climb.