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The Great, Constantly Changing Picture Gallery, Troisième partie: la vengeance!

L

Llarry

Well-Known Member
Grainy photo of the "angled deck" markings painted on the Royal Navy otherwise straight deck light carrier HMS Triumph (R16) for tests in 1952. These initial trials were quickly followed by the modification of the USS Antietam (CV-36) to a true angled deck configuration and both the USN and the RN were off to the races with the concept.


HMS Triumph angled deck markings.jpg
 
Flash

Flash

SEVAL/ECMO
None
Super Moderator
Contributor
The Hawaii Mars made her final flight to Victoria, British Columbia on Sunday accompanied by the RCAF's Snowbirds. She will be eventually displayed at the British Columbia Aviation Museum.

Feliks1-scaled.jpg



The last flight of the Martin Mars will be when the Philippine Mars flies to her permanent home at the Pima Air and Space Museum in Arizona later this year.
 
wink

wink

War Hoover NFO.
None
Super Moderator
Contributor
Flash said:
The Hawaii Mars made her final flight to Victoria, British Columbia on Sunday accompanied by the RCAF's Snowbirds. She will be eventually displayed at the British Columbia Aviation Museum.

Feliks1-scaled.jpg



The last flight of the Martin Mars will be when the Philippine Mars flies to her permanent home at the Pima Air and Space Museum in Arizona later this year.
Click to expand...
Be nice to see the Philippine Mars get a similar send off in the US. If I know when it arrives I'll make the drive down to see it.
 
L

Llarry

Well-Known Member
Korean Aerospace Industries KF-21 fighter prototypes have been flying since 2022. The KF-21 is an advanced stealthy fighter powered by twin GE F414 engines as on the F-18 Super Hornet. The ROKAF has recently ordered the first 20, with deliveries scheduled to begin in late 2026. The plan is to buy 40 of the initial version, then 80 improved variants with more ground attack capability. A number of export customers are interested; Indonesia and Poland appear to be the most serious. The KF-21 resembles a smaller F-22 but without thrust vectoring.

KF-21 aerial refueling.pngKF-21 Boramae top view.png
KF-21 3rd prototype.jpg
 
taxi1

taxi1

Well-Known Member
pilot
sevenhelmet said:
Reductions in fuel efficiency, top end speed, and turn performance.
Click to expand...
I sat through the PhD defense some months back, and the candidate had done research on concepts for strut-based wings on airliners. The struts would allow much lighter wings with greater wingspan (good), but would generate some funky airflow where the struts meet with the wing at about 1/3rd span (bad).

The cool part of his research was he was using winglets to tailor pressure field around the wing to diminish the strut joint drag, and doing so effectively. The winglets are way the heck out on the end of the wing, the struts are only 1/3rd the way out. It's kind of mind blowing that the two can "communicate" over that distance.

Which is to say, flow fields around planes are complicated things!
 
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