As of 2026-10-12, Northrop Grumman RQ-180 tops the list with 50 m.
- #1 Northrop Grumman RQ-180 — 50 m
type of aircraft
The Northrop Grumman RQ-180 is an American stealth unmanned aerial vehicle (UAV) surveillance aircraft intended for contested airspace. While there has been no official confirmation as of 2026, evidence points to the existence of the RQ-180 and its use in regular front-line service. Read more on Wikipedia.
Wikidata - #2 IAI Heron MK2 — 17 m source Wikidata
- #3 Falco EVO — 13 m
surveillance drone
source Wikidata - #4 Atobá — 11 m
Unmanned aerial vehicle produced in Brazil
The Atobá XR is a remotely controlled unmanned combat aerial vehicle capable of autonomous flight and attack operations under development by the company Stella Tecnologia primarily for the Brazilian Armed Forces. The Atobá XR is the first Brazilian hunter-killer UAV designed for long-endurance and high-altitude surveillance operations. Read more on Wikipedia.
Wikidata - #5 Tactical Heron — 11 m
tactical unmanned aerial vehicle manufactured by Israel Aerospace Industries
source Wikidata - #6 SIERRA-B — 6.10 m
NASA research UAV
The Systems Integration Evaluation Remote Research Aircraft (SIERRA) is a UAV designed by the U.S. Naval Research Laboratory and developed at NASA's Ames Research Center. Read more on Wikipedia.
Wikidata - #7 Shahed 141 — 5.12 m
Iranian unmanned aerial vehicle
source Wikidata - #8 Progress Photon-601 — 5.00 m
Russian unmanned combat aerial vehicle
source Wikidata - #9 MIT EAD Airframe Version 2 — 5.00 m
Ionocraft
The EAD Airframe Version 2, or V2, is a small American unmanned aircraft. It has been described as 'solid state', as there are no moving parts in the propulsion system; all thrust is powered by the phenomenon known as ion wind. As of 2018 it was being developed at the MIT Department of Aeronautics and Astronautics by associate professor Steven Barrett and others. Read more on Wikipedia.
Wikidata - #10 Boeing Insitu Integrator ER — 4.80 m
unmanned air vehicle by Boeing Insitu
source Wikidata