Argentina retired the Super Etendard in 2023 for a lack of spare parts. Last June, Argentina and France discussed transferring the ex-Argentine Navy Super Etendards to the Ukraine.

https://bulgarianmilitary.com/amp/2023/05/21/argentina-retired-super-et…

https://newsukraine.rbc.ua/news/argentina-and-france-discuss-transfer-o…

From Sandboxx:

Lockheed Martin’s mysterious hypersonic aircraft known as SR-72 appears to be continuing its march toward service, but the program is not immune from the Air Force’s broader budgetary woes. 

Sandboxx News has covered the secretive development of SR-72, Lockheed Martin’s hypersonic successor to the legendary SR-71 Blackbird, and its potential path toward service in the not-too-distant future. Now, new evidence has come to light that suggests this exotic new aircraft program is facing compounding budgetary shortfalls, which could further complicate matters for the Air Force as it struggles to find ways to fund a bevy of high-profile new efforts, including new ICBMs, stealth bombers, and air superiority fighters. 

Lockheed Martin used “SR-72” as an informal umbrella moniker for its design studies in the 2006-2009 timeframe for a hypersonic ISR vehicle derived from the Blackswift and HCV.

https://www.secretprojects.co.uk/threads/lockheed-martin-sr-72.1985/pag…

https://minemen.org/dashpot/DP2007-4.pdf

From its founding in 1985 until 1988, TIGHAR supported the “crash-and-sink” hypothesis advanced by Elgen Long. However, Ric Gillespie in 1988 saw an opportunity for TIGHAR to begin investigating the hypothesis that Earhart and Noonan landed in Nikumaroro to become real-life Robinson Crusoes because he noted that Nikumaroro and Howland Island were situated on the 157-337 navigational search line and that none of Earhart’s final radio transmissions were distress calls.

A September 2022 issue of TIGHAR Tracks cites the results of forensic examination by Jeff Glickman of the aircraft aluminum part catalogued as 2-2-V-1 by TIGHAR and long seen as possibly belonging to the Lockheed 10E Electra NR16020 demonstrating that this artifact is actually from a C-47. To be honest, TIGHAR had to exercise caution when weighing the possibility that 2-2-V-1 was from NR16020 because some people weren’t sure that this aluminum skin came from Earhart’s Electra. 

https://tighar.org/Publications/TTracks/2022Vol_38/TIGHARTracks38_03_Se…

When Ric Gillespie founded TIGHAR in 1985, his organization embraced Elgen Long’s hypothesis about Amelia Earhart and Fred Noonan landing their plane on the water after running out of fuel. However, by 1988, TIGHAR changed its mind and began articulating its belief that Earhart became a female Robinson Crusoe by landing NR16020 on Nikumaroro.

I’ve always appreciated TIGHAR for its work to test the hypothesis that Earhart and Noonan landed on Nikumaroro and spent a day or so before they died of dehydration, especially as the aircraft aluminum skin catalogued as 2-2-V-1 by TIGHAR which was considered possibly from NR16020 has been recently re-assessed as belonging to a C-47.

https://tighar.org/Publications/TTracks/2022Vol_38/TIGHARTracks38_03_Se…

With respect to TIGHAR’s investigation of the hypothesis that Amelia Earhart and Fred Noonan failed to reach Howland Island because they landed their plane on the island of Nikumaroro, I should point out when TIGHAR was founded in 1985, Ric Gillespie himself initially supported the “crash-and-sink” hypothesis postulating that Earhart and Noonan’s disappearance came about because their plane ran out of fuel and crashed into the ocean. By 1988, however, two members of his organization had TIGHAR change its mind about the veracity of the “crash-and-sink” hypothesis promoted by Elgen Long and devise the hypothesis that Earhart and Noonan landed on Nikumaroro. When I took 6th grade class in Lincoln Elementary School in 2003, I got to learn all the hypotheses as to why Earhart and Noonan vanished, including debunked conspiracy theories about the duo being captured by the Japanese and held hostage in the Marianas.

Although the TIGHAR website still lists the Maid of Harlech project as active, the fact that the P-38 with serial number 41-7677 was designated as a protected site by the Welsh Government’s historic environment service in 2019 may prompt TIGHAR to shut down the Maid of Harlech project in the event that wave actions remove layers of sand covering the remainder of the P-38, in which case the Imperial War Museum Museum could save the aircraft from looting by donating it to the museum’s storage room.

https://tighar.org/Projects/Earhart/Overview/AEoverview.html

https://www.walesonline.co.uk/lifestyle/nostalgia/american-fighter-plan…

One interesting aspect of the 1956 film Toward the Unknown is the depiction of the first Martin XB-51 prototype as a fictional jet fighter, the Gilbert XF-120. During the filming of Toward the Unknown, the XB-51 with serial number 46-685 was en route to Eglin AFB to shoot additional footage when it crashed during takeoff from an airfield in El Paso, Texas, on March 25, 1956.

https://www.thisdayinaviation.com/tag/gilbert-xf-120/

The IAe 33 Pulqui II only reached the prototype stage, with four prototypes and a static test article completed.

Although Kurt Tank used the Ta 183 as the basis for the Pulqui II, the latter aircraft used a Rolls-Royce Nene and had a fuselage with a bigger cross-section, and thus it was designed to travel close to the sound barrier (like the MiG-15).