Talk:Sukhoi Su-75 Checkmate

Issue with "Checkmate" Designation

Using the name "checkmate" is premature.

NATO reporting names for fighters start with "F". Consistent with this various sources, such as on reddit, have dubbed this "Femboy" based on the second syllable starting with B. While this is not the final NATO name for the jet, the article probably should at least acknowledge the usage in popular culture. 98.45.185.205 (talk) 20:27, 15 March 2022 (UTC)

F-35 "light to medium"?

may compete with the Lockheed Martin F-35 Lightning II and other aircraft of the same light to medium-weight category

Putting the F-35, at 13,300kg empty (F-35A) one of the heaviest single engine fighters ever made, into the "light to medium-weight category" seems a bit ironic. Empty, it's even heavier than the two engine Rafale, Eurofighter and F-15C and only slightly less heavy than e.g. the Tornado GR4.

Stealth aside, and in my personal opinion, the emphasis on the Su-75 being low maintenance and able to operate from short airstrips is much more reminiscent of the Gripen, but from what is known so far, I expect it to be significantly heavier than the very lightweight (6,800kg) Gripen, maybe around the 11,000kg range. Aragorn2 (talk) 10:04, 22 July 2021 (UTC)

Designation

I would assume that the internal prototype name is T-75 (the Su-57 had a prototype name T-50). Rostec has a first interview online where they dont use a number but they repeatedly name the project "ЛТС Checkmate" (mixed cyrillic/latin russian/englisch), see [1]. Guidod (talk) 16:27, 22 July 2021 (UTC)

The Su-75 designation does seem to be a misunderstanding of the project name, but i wouldn't be surprised if Sukhoi goes along with the misnomer Anthropophoca (talk) 02:45, 15 November 2021 (UTC)

"Ruddervators require sophisticated flight-control systems"

Why would ruddervators require sophisticated flight-control systems? For my model plane the conversion from pitch and jaw to ruddervator settings is simply pitch + jaw for one, and pitch - jaw for the other ruddervator. — Preceding unsigned comment added by 92.10.236.193 (talk)

I agree, that is a good question - they are used on several gliders and ultralights and just controlled with mixing bellcranks. This may need a better explanation in the article, but the cited refs doesn't explain the claim made. - Ahunt (talk) 23:16, 6 November 2021 (UTC)

X-32 the first plane to introduce a DSI? Dodgy footnotes??

I think you'll find Vought's XF8U-3 Crusader III vigorously disputes this statement since it flew with one close to 42 years before the X-32. Might also want to check those footnotes (16,17 & 18,19,4,20). 16 is a broken link, and 18,19,4,20 are irrelevant to the statement about the Boeing X-32. Take out the part about the X-32 being the first to introduce a DSI, and footnotes 18-20 become relevant to the original sentence stating the Su-75 having a DSI. (Chocko2-14) — Preceding unsigned comment added by 14.2.114.87 (talk) 07:42, 7 December 2021 (UTC)

I have fixed footnote 16, which says The overall inlet design, called a diverterless supersonic inlet or DSI, moved from concept to reality when it was installed and flown on a Block 30 F-16 in a highly successful demonstration program. The flight test program consisted of twelve flights flown in nine days in December 1996. If you are going to claim that an earlier design used a DSI then you will need to cite a ref for that. - Ahunt (talk) 13:07, 7 December 2021 (UTC)