What's Happening With The F-35 Lightning?
What is the delay with the F-35 aircraft?
The F-35 was designed to evolve through software and hardware updates. The current big upgrade path is:
TR-3 (Technology Refresh 3) → new computers, displays, and processing power.
Block 4 → new weapons, sensors, electronic warfare systems, and other combat capabilities that depend on TR-3. [files.gao.gov], [airandspac...forces.com]
According to the U.S. Government Accountability Office (GAO):
TR-3 became a major source of delivery delays.
Block 4 costs have grown by more than $6 billion.
Completion is now expected at least five years later than originally planned. [files.gao.gov]
The GAO reported that combat-capable TR-3 aircraft are not expected until 2026, roughly a three-year delay from earlier plans. [militarywa...gazine.com]
Why is the U.S. talking about more 4th-generation fighters?
This is where strategy gets interesting.
The Air Force is increasingly worried about capacity as much as capability.
An F-35 is incredibly capable, but it's expensive to buy and operate. Meanwhile the U.S. faces potential commitments in:
Europe
The Indo-Pacific
Middle East contingencies
You can't be everywhere with a relatively small fleet of stealth fighters.
So there's been growing interest in a "high-low mix":
High-end
F-35A
F-22
Future F-47/NGAD
Lower-cost mass
F-15EX Eagle II
Upgraded F-16s
Collaborative Combat Aircraft (loyal wingman drones) in the future
The Air Force has already been buying the F-15EX, a heavily modernized 4th-generation fighter based on the proven Eagle design.
The deeper issue: quantity versus quality
This is the biggest fighter debate in the world right now.
For 25 years, Western air forces largely assumed a smaller number of very advanced fighters would be enough.
China has changed that equation.
The PLA Air Force can potentially field:
Large numbers of J-20 stealth fighters
Modern J-10s and J-16s
Massive missile inventories
That has revived concerns that the U.S. may not simply need better fighters, but more fighters.
Some defense analysts argue that a force of:
1,000 superb jets
may be less useful than:
600 superb jets plus
1,000 good jets and drones
if a prolonged conflict occurs.
My Assessment
The biggest risk to the F-35 program is not that the aircraft doesn't work.
The risk is that the software-driven modernization model is proving much harder than expected, causing Block 4 capabilities to arrive later and cost more than planned. [files.gao.gov], [airandspac...forces.com]
At the same time, the U.S. military is rediscovering an old lesson from World War II through the Cold War:
Quality matters enormously, but quantity has a quality all its own.
That's a major reason why you're hearing renewed discussion about F-15EX purchases, upgraded F-16s, and large numbers of autonomous combat drones alongside the F-35.
One really fascinating next step would be to explore why many strategists think the future air force might look more like "F-35 + drones + F-15EX missile trucks" rather than an all-stealth fighter fleet. That's where current U.S. airpower thinking gets very interesting.
What do you think? Will there be a replacement for the F-35 before all the F-35's have been rolled out and upgraded? What is the next progression in military aviation?
You can add comments below or send your comments to us via email at flightdeckmodels@gmail.com
Comments