Northrop Grumman develops the next-generation radar for the F-35 Lightning II Block 4
GAO Finds Increased Delays and Costs for F-35's Block 4 Modernization - Avionics International
Why is the F35 block 4 upgrade taking forever? Aren't faster processors available in the commercial market and the sidekick missile launch system is not difficult to incorporate in the F-35? -
F-35's Block 4 upgrade 55 percent over target costs, up $1.4B since last review: GAO - Breaking Defense
![F35 Block 4 capability brings with it 66 unique capabilities with about 16 weapons that the initial version of F-35's did not carry [1256x1280] : r/WarplanePorn](https://i.redd.it/noa14pcwh6a91.jpg "F35 Block 4 capability brings with it 66 unique capabilities with about 16 weapons that the initial version of F-35's did not carry [1256x1280] : r/WarplanePorn")
F35 Block 4 capability brings with it 66 unique capabilities with about 16 weapons that the initial version of F-35's did not carry [1256x1280] : r/WarplanePorn
Lockheed Martin F-35 Lightning II - Wikipedia
Lockheed nabs $1.8B for F-35 Block 4 software development, testing - UPI.com
Block 4: How the F-35 Keeps Getting Better (And Deadlier) - 19FortyFive
Finland Formalizes Deal for 64 Block 4 F-35s | Air & Space Forces Magazine
Update: F-35 Block 4 Upgrades and New F-35B At-Sea Users - Naval News
Lightning Reflexes - Armada International
US Confirms 'Highly Classified' Electronic Warfare (EW) Suite For F-35 Stealth Fighter's Block 4 Upgrade
F-35 Block 4 Weapons and Features : r/Dragon029
Pentagon firming F-35 Block 4 configuration | News | Flight Global
One-third of F-35s could be delivered before operational testing is complete
Manned-Unmanned Teaming Eyed For F-35 Block 4 | Aviation Week Network
New Electronic Warfare Suite Top Feature Of F-35 Block 4, Air Combat Boss Says
The most sensible option to achieving Block 4 readiness in F-35s
F-35 Production Deal is Largest in DOD History; Block 4 Contract Also Inked | Air & Space Forces Magazine
F-35 New Features | What the F-35 of the Future Will Look Like
F-35 Block 4 Modernization Delay Believed To Be Difficult To Fight Chinese Stealth Fighter Jets - YouTube
The Latest Variant of the F-35 Block 4, Major Enhancement which Still Has Critical Defects - YouTube
Block IV: The F-35 'Upgrade' That Should Make China Nervous | The National Interest
Update: F-35 Block 4 Upgrades and New F-35B At-Sea Users - Naval News
Inside Block 4—The Mostly Secret Plan For Making The F-35 Fighter Even More Lethal
