Skip to content
My AFA Account Search
My AFA Search
  • News
    • News Home
    • Air
    • Space
    • Personnel
    • National Security
    • Joint Training
    • Electronic Warfare
    • Technology
    • Budget
  • Daily Report
    • Today’s Report
    • Airframe
    • Subscribe!
  • Magazine
    • Current Issue
    • Back Issues
    • Almanac
    • Get The Magazine
  • History Home
    • Chronology: History of Airpower
    • Valor
    • Namesakes
  • About Us
    • About Us Home
    • Our Staff & Products
    • Join AFA
    • Advertise with Us
    • Contact Us
    • Reuse and Reprint Permission
  • Weapons & Platforms
  • CCA
Subscribe
Close Image

F135

Pratt & Whitney to Resume F-35 Engine Deliveries after 2-Month Hold

Feb. 24, 2023 | By John A. Tirpak
The government has cleared Pratt & Whitney to resume providing F135 engines to Lockheed Martin, but deliveries of some 21 F-35s completed but not yet handed over to government users is still on hold. Acceptance flights and deliveries of the all-up jets may resume the ...

F-35 Deliveries May Resume by March, as Pratt Says It Has an Engine Fix

Feb. 10, 2023 | By John A. Tirpak
A month after F-35 fighter deliveries were halted pending an investigation into a Dec. 14 crash, Pratt & Whitney said it has a fix in hand that will allow deliveries to resume by the end of February. The problem had to do with harmonic resonance, ...

Lockheed: F-35 Deliveries Still Frozen, Classified Programs Growing Fastest

Jan. 24, 2023 | By John A. Tirpak
Lockheed Martin is finishing but not delivering F-35 fighters, pending results of a Navy investigation into a recent F-35B crash, company officials said on their quarterly results call. They also revealed heavy charges against the hypersonic AGM-183 ARRW missile program and said the company's classified ...

Northrop Grumman Reveals It’s Developing the F-35’s New Radar

Jan. 11, 2023 | By John A. Tirpak
Northrop Grumman has revealed that it is developing a new radar for the F-35 fighter, called the AN/APG-85. The new radar will be installed on some F-35s in Lot 17, options for which were set by Lockheed Martin and the Joint Program Office last week. ...

All F-35, F135 Engine Deliveries Suspended Pending Crash Investigation

Jan. 4, 2023 | By John A. Tirpak
Fallout from the Dec. 15 crash of an F-35B is widening, as the Joint Program Office revealed deliveries of new F135 engines for all F-35 fighters were halted on Dec. 27—while deliveries of newly completed F-35 fighters were stopped the day of the crash. Deliveries ...

Pratt Says F135 Upgrade for F-35 Would Save $40 Billion over New Adaptive Engines

Dec. 13, 2022 | By John A. Tirpak
Pratt & Whitney would like to keep its monopoly on supplying powerplants for the F-35 fighter fleet and is pushing for the government to choose an upgrade of the F135 engine instead of an all-new adaptive engine, which it said would be far more costly ...

LaPlante: DOD Won’t ‘Kick the Can’ on F-35 New Engine Decision; Won’t Break Up JPO

Oct. 25, 2022 | By John A. Tirpak
The Pentagon will soon decide whether to move ahead with a new engine for the F-35, and officials won’t simply table the issue indefinitely, Defense Department acquisition and sustainment chief William LaPlante said at an acquisition conference. He also said calls to break up the ...

GE’s AETP Engine Completes Milestone Tests as Air Force Faces Decision on F-35

Sept. 14, 2022 | By Chris Gordon
GE Aviation announced that it completed milestone tests for the engine it hopes will power Air Force fighters well into the future. GE calls its offering in the Adaptive Engine Transition Program the XA100, and the company hopes the Air Force will soon select it ...

Kendall Says F-35 Engine Decision Needed Soon; Won’t ‘Limp Along’ on R&D

July 26, 2022 | By John A. Tirpak
The Air Force will likely make a decision this summer on whether to insert Advanced Engine Transition Program powerplants into the F-35 fleet, Secretary Frank Kendall said, because he doesn’t want to waste money on further delay if the program isn’t going forward. “We need ...

Schmidt Succeeds Fick as New F-35 PEO; Two USAF Directors in a Row May Signal JPO Break-Up

July 5, 2022 | By John A. Tirpak
Air Force Lt. Gen. Michael J. Schmidt took command of the F-35 Joint Program Office on July 5, succeeding Air Force Lt. Gen. Eric Fick, who is retiring. The succession of an Air Force PEO by another—breaking more than 25 years of back-and-forth joint leadership—may ...

Pentagon Awards $80 Million for Work on F-35 Engines, Weapons Integration

July 1, 2022 | By Greg Hadley
The Pentagon handed out more than $80 million in contracts for work on the F-35’s engines and weapons integration as well as another $25 million to support the development of a joint simulation environment for the F-22. The largest of the deals handed out went ...

Raytheon’s Pratt & Whitney Gets $4.4 Billion F-35 Engine Deal

June 14, 2022 | By John A. Tirpak
Raytheon Technologies Corp.’s Pratt & Whitney military engines unit received a $4.385 billion Naval Air Systems Command contract for 178 of its F135 engines to power all variants of the F-35 fighter. The eventual contract value could be as much as $8 billion. The contract ...
Sorry, no posts were found.

Latest News

F-35 Contracts Slip in Delay Unrelated to Radar Woes

Air Force Ready to Deploy More Nukes Once Arms Control Treaty Ends

Space Force’s Only Guardian-Astronaut Reflects on Journey from Jets to Space

Turning Qatari Jet into Air Force One to Cost ‘Less Than $400 Million’

What Defense Tech Firms Can Learn From Formula One

Listen to the latest
Aerospace Advantage Podcast
from the Mitchell Institute

Budget Battles, Golden Dome, and Ukraine’s Strike on Russia

Listen Now

Subscribe to the Daily Report

Get your daily fix of Air & Space Force news delivered right to your inbox every day. There's no more reliable source for news about your Air & Space Forces.

Subscribe Today
  • Facebook
  • X
  • Instagram
  • LinkedIn
  • Daily Report
  • Contact Us
  • Advertise
  • Subscribe!
  • Air & Space Forces Association
  • Reuse and Reprint Permission
  • Privacy Policy

Air & Space Forces Magazine is the official publication of the Air & Space Forces Association, 1201 S. Joyce St., C6 / Second Fl., Arlington, Va., 22202. Copyright 2025