essential
likely
maybe
probably not
Front (prompt)
Part 107 maximum altitude for sUAS?
Plain English (default view) — short, conversational, lightly seasoned with science
🔬 Scientific / formula (revealed on click) — markdown + $$…$$ ok
**400 ft AGL** above ground, or within 400 ft of a structure (above the structure's height). Max ground speed: 100 mph.
💡 Mnemonic / memory aid (shown on hover)
Four hundred and no more — unless you're inspecting a tall structure, then stay within 400 ft of it.
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