Definition
A very small unmanned aircraft, typically no larger than about six inches in any dimension and weighing only a few ounces, designed for short-range surveillance, reconnaissance, or sensing tasks. Micro air vehicles are usually remotely piloted or autonomously guided and may use fixed wings, rotors, or flapping-wing designs.
Plain English
A tiny unmanned aircraft, often only a few inches across, used to carry a small camera or sensor where a larger drone or aircraft could not go.
Context Anchor
Seen in discussions of unmanned aircraft, small drone operations, research aircraft, military observation, and low-altitude airspace awareness.
Derivation
From Greek mikros meaning 'small,' combined with 'air vehicle.' The 'micro' prefix is the key — it distinguishes these from larger unmanned aircraft and signals that the size is measured in inches, not feet.
Why Pilots Care
Pilots care because a Micro Air Vehicle can be difficult to see and may operate at low altitudes near airports, training areas, inspection sites, or emergency scenes.
Grounding Statement
Picture a hand-carried flying device with a small camera or sensor, operating while its pilot or operator stays on the ground.
Intuition Check
Do not assume “micro” means harmless or outside aviation rules. It means the aircraft is very small, but it can still share airspace with other aircraft.
Example Sentence 1
The team launched a micro air vehicle through the window to get a look inside the building before entering.
Example Sentence 2
The team used a micro air vehicle equipped with a camera to inspect power lines after the storm.