Detect-and-Avoid Technology and BVLOS Drone Flight in NYC (2026)

Detect-and-avoid (DAA) is one of the most important — and still developing — technologies in drone aviation. It is the capability that allows an uncrewed aircraft to sense nearby aircraft and obstacles and maneuver to stay clear, even when the operator cannot see the drone directly. This article explains what DAA is, why it matters for the future of beyond-visual-line-of-sight (BVLOS) flight, and how it might eventually apply in New York City.

Why "See and Avoid" Is a Problem for Drones

In traditional aviation, pilots are responsible for "see and avoid" — visually spotting and avoiding other aircraft. For drones flown within visual line of sight, the operator (or a visual observer) performs this function. But for BVLOS operations, where the drone travels beyond what the operator can see, a technical substitute is needed. That substitute is DAA.

How DAA Works (in Broad Terms)

DAA systems combine sensing and decision-making. Sensing can use technologies such as:

• Cooperative signals like ADS-B and Remote ID broadcasts from other aircraft.
• Onboard sensors such as radar, optical cameras, or acoustic detection.
• Ground-based surveillance feeding traffic data to the operator or automation.

The system then assesses collision risk and either alerts the operator or autonomously adjusts the flight path to maintain safe separation. Industry and standards bodies continue to develop the performance requirements, so there is no single fixed standard yet.

Reliability and Certification Are the Hard Part

The difficulty with DAA is not detecting something once — it is detecting reliably enough, often enough, and acting correctly enough to be trusted in place of a human pilot's eyes. That means defining performance requirements, testing them, and agreeing on how a system demonstrates compliance. Standards organizations and the FAA continue this work, which is why there is no single approved DAA standard that all operators can simply buy and install today.

DAA and the Future of BVLOS Rules

Routine BVLOS flight generally requires either a specific FAA waiver today or a future standardized framework. Proposals such as the FAA's UAFR rulemaking contemplate conditions under which BVLOS could become more routine, and robust DAA is widely expected to be part of any such framework. Because that rulemaking is only proposed, the exact role of DAA remains to be defined.

What DAA Could Mean for NYC

New York City is among the hardest environments imaginable for BVLOS: dense manned-aircraft traffic, tall buildings, and Class B airspace at 0 ft LAANC ceilings across much of Manhattan. Even highly capable DAA would not, by itself, override NYC's local rules. Any future BVLOS operation in NYC would still sit on top of the NYPD take-off/landing permit requirement under NYC Administrative Code § 10-126 and FAA airspace authorization. For now, DAA in NYC is a forward-looking topic, not a present-day pathway.