Keeping your aircraft clean is vital not only for appearance but mainly for safety and efficiency.
*Dirt accumulates in crevices of the airframe structure and it can result in corrosion spots.
*Non-pressurized aircraft that fly at lower altitudes accumulate a great deal of bugs.
*Normal engine operation and reverse thrust upon landing results in exhaust build up on the sides and tail.
Furthermore, the regular habit of power washing your airplane helps you grow familiar with the little details that make a big difference.
A trained eye will notice an irregularity such as a small leak or a defective rivet. Airplane pressure washing is not only safer but will also result in reduced drag and therefore higher fuel efficiency.