essential
likely
maybe
probably not
Front (prompt)
Class E airspace — three common variants and their sectional markings?
Plain English (default view) — short, conversational, lightly seasoned with science
🔬 Scientific / formula (revealed on click) — markdown + $$…$$ ok
E = **Everywhere-else controlled.** Three flavors: - 🟪 **Surface-designated** (dashed magenta line) - Floor: **surface** - Around airports without towers - sUAS rule: **authorization required** - 🟪 **700 AGL floor** (shaded magenta) - Floor: 700 ft AGL - Drones under 400 AGL stay below E → **no authorization needed** - 🟦 **1 200 AGL floor** (shaded blue) - Floor: 1 200 ft AGL - "Default" controlled airspace away from airports - **No authorization needed** for sUAS ⚠️ Only the **surface-designated** version requires LAANC.
💡 Mnemonic / memory aid (shown on hover)
E = Everywhere-else controlled. Dashed magenta = surface E (authorization). Shaded magenta = 700 AGL floor. Shaded blue = 1200 AGL floor.
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