Ops
Rules checks for Part 107 and the EASA open category.
Rules checks for flying under Part 107 in the United States and the EASA open category in Europe: the 400 ft altitude limit and its structure exception, the 87 knot groundspeed limit, which open subcategory a drone fits, and impact energy against the published thresholds. It is for remote pilots checking a plan against the rules. Start with the Part 107 altitude tool. Each tool checks one rule; none grants airspace access, and a waiver, a TFR, or controlled airspace can change what you may fly.
Planning and education aid. Not for primary navigation. Full disclaimer
I want to check an altitude or speed limit under Part 107
- Part 107 maximum altitude
Your maximum altitude under 14 CFR 107.51: 400 ft above ground, or up to 400 ft above a structure when you stay within 400 ft of it, shown above ground, above sea level, and above the ellipsoid.
- Part 107 groundspeed check
Checks your groundspeed, including the wind, against the Part 107 limit of 87 kt (100 mph). A tailwind can push a legal airspeed over the limit.
I want to find my EASA open subcategory
- EASA open subcategory
Which EU open-category subcategories (A1, A2, A3) your drone may fly in, from its class mark and mass, with each subcategory's distance rule.
I want to know the impact energy of my drone
- Drone impact kinetic energy
Kinetic energy ½mv² in joules and foot-pounds, compared with the EASA C1 80 J threshold and the FAA category 2 operations-over-people 11 ft-lb threshold, each cited.
Flying at dusk under Part 107
- Civil twilight under §107.29(c) is the 30 minutes after official sunset and before official sunrise (the Air Almanac period in Alaska); the four-nights tool shows it for your site and date, with when §1.1 night begins. The four aviation nights
- In civil twilight and at night the drone needs anti-collision lighting visible for at least 3 statute miles; at night the remote pilot also needs the §107.65 training.
- The altitude limit is the same at dusk as by day. Part 107 maximum altitude
Guides that use these tools
- Drone mapping day: From the resolution the client wants to the height, overlap, blur check, image count, and the hours of good light.