Every surface. Every runway. Every time.
Primary, approach, transitional, horizontal and conical, plus the 77.9 notice slopes. The math is deterministic, so the same input always gives the same answer, and each result cites its CFR section.
Deterministic Part 77 surface logic, 77.9 notice criteria and risk classification, with a report ready for Form 7460-1.
Primary, approach, transitional, horizontal and conical, plus the 77.9 notice slopes. The math is deterministic, so the same input always gives the same answer, and each result cites its CFR section.
Airports from FAA NASR and obstacles from the FAA Digital Obstacle File.
Penetration depth, clearance margins, the controlling surface and the notice determination in one report.
Sample report →Coordinates in DD, DDM or DMS, height AGL and structure type.
All nearby runways, five surfaces, the 200 ft rule and the 100:1, 50:1 and 25:1 slopes.
A clear determination and a report packaged for Form 7460-1.
Runways, thresholds, declared distances and lighting through a versioned REST API. JSON or GeoJSON output and self-service developer keys.
{
"ident": "KDEN",
"name": "Denver International",
"elevation_ft": 5434,
"runways": [
{ "id": "16R/34L", "length_ft": 16000 },
…
]
}Airport data is ingested directly from FAA NASR and DOF datasets, aligned to the 28 day AIRAC cycle, with an automated Part 77 compliance engine on top.
About CurvAeroQuestions about a specific filing? Talk to an airspace specialist.