The Unmanned Long-endurance Tactical Reconnaissance Aircraft or ULTRA is a developmental unmanned aerial vehicle (UAV) built by Air Force Research Laboratory (AFRL) Center for Rapid Innovation (CRI) and DZYNE Technologies Incorporated.

However, at a price of $30 million per aircraft, it has been shown to be costly if lost;[1] since 2017, five have been shot down by Houthi rebels in Yemen, including during the Red Sea crisis.

This prior experience led to the development of ULTRA, which the Air Force officially started buying in the 2025 budget request, procuring four drones for $35 million.

ULTRA increased endurance and lowered acquisition cost by repurposing the manned Stemme S12 commercial sport glider and converting it to a military hardened drone using commercial-off-the-shelf UAV technology, existing manufacturing and supply channels, and limited custom avionics.

[5] In May 2024, The War Zone reported that ULTRA was being operated from Al Dhafra Air Base in the United Arab Emirates.