Daily Report

Oct. 3, 2025
F135 upgrade

F-35 Engine Production Contract Slips to Spring 2026

The finalized Lot 18 and 19 contracts for the F-35’s F135 engines have been delayed six months to early 2026, the Joint Program Office told Air & Space Forces Magazine. It did not elaborate on what’s causing the delay or whether it would affect production of completed F-35 jets. RTX’s Pratt & Whitney unit makes the F135 engine.

Radar Sweep

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Trump’s Drone Deal with Ukraine to Give US Access to Battlefield Tech

The Wall Street Journal

A Ukrainian team is in Washington this week to craft a landmark agreement with the Trump administration that would involve Kyiv sharing its battle-tested drone technology with the U.S. in exchange for royalties or other forms of compensation, according to officials from both countries.

Sierra Nevada Reveals BRAWLR Air Defense System That's Already Deployed—Somewhere

Breaking Defense

Sierra Nevada Corp. has revealed new details about a closely held new air defense system that it claims has already helped down scores of aerial threats, though it won’t say where. At last week’s annual Air & Space Forces Association conference outside Washington, the company for the first time publicly displayed the Battery Revolving Adaptive Weapons Launcher—Reconfigurable (BRAWLR), which SNC says can carry up to four types of rockets and missiles at once to take out enemy drones and cruise missiles from the back of a pickup truck, a trailer, or the ground.

OPINION: Hybrid Air Denial: The New Gray Zone Battleground Raging Above Europe

Defense News

"[Russian drone] incursions reveal a coordinated pattern in a new type of gray zone warfare—what we term ‘hybrid air denial’—that blurs the lines between peace and war. In this approach, adversaries use low-cost drones to access and deny commercial activity in the air littoral, producing outsized effects on security, the economy, and public confidence,” write retired Air Force Col. Maximilian K. Bremer and Kelly A. Grieco, fellows at the Stimson Center.

Inside the Emergency Effort to Create a European Drone Wall

Defense One

As Russian drone incursions across Europe spike, the European Union committed Oct. 1 to one of the most ambitious multi-nation defense projects in history: a Europe-wide “drone wall,” envisioned as a network of new sensors, artificial intelligence software, jammers, cheap missiles, and more to thwart small-drone attacks.

The Spreadsheet Behind the Golden Dome Sticker Shock

SpaceNews

A report published last month by defense analyst Todd Harrison estimating the potential costs of the Golden Dome missile defense system landed like a fiscal bombshell. President Trump in May said it would cost $175 billion over three years. The Congressional Budget Office projected between $161 billion and $542 billion over two decades. Harrison’s “robust all-threat defense” scenario came in at $3.6 trillion over the same time period. During a meeting with reporters Oct. 2, Harrison opened the hood on exactly how he arrived at the jaw-dropping numbers—and challenged skeptics to run the calculations themselves.