The A320 aircraft features a maintenance system in the computerized compartment. Electronic aviation engineering systems are designed to be easily upgraded without major repairs. I’m a grumpy old navy veteran my level of sarcasm depends on your level of stupidity shirt. Except for the first A320s, much of the latter can be upgraded to match the latest avionics technical standards, keeping advanced aircraft even after two decades of operation. Flight control panel of aircraft is equipped with EFIS with sidestick controllers. At the time of the introduction of the aircraft, the operation of a digital aircraft control system (equipped to fully protect flight management) was completely new to many pilots. The rigorous training and adjustment of this system has significantly reduced dependence on the EFIS system. In 2006, Airbus tested three types of small wing tips, with the aim of resisting induced drag and vortex vane more effectively than the previous wing tip. The use of these small extra wings is estimated to reduce fuel consumption by 1-2%. The first experimental design was developed by Airbus and based on the work done by the AWIATOR program. The second small wing type uses a more complex design created by Winglet Technology LLC, a company based in Wichita, Kansas, and also created a third category.