Plain English Meaning

Approved ground-based training equipment that mimics flying an airplane closely enough that the FAA allows it to count toward certain training and currency requirements.

Full Definition

Ground-based training equipment, approved by the FAA, that replicates aircraft instruments, controls, and flight conditions for the purpose of pilot training, testing, and proficiency. Aviation training devices (ATDs) are categorized as Basic Aviation Training Devices (BATDs) or Advanced Aviation Training Devices (AATDs), depending on their fidelity and approved uses. They are distinct from full flight simulators (FFSs) and flight training devices (FTDs), which meet higher certification standards.

Context Anchor

Seen when discussing how simulators, training devices, and actual airplanes are used together in pilot training, including .