aCa
954 posts
The OK-KS was a static and structural (non-flying) testbed for the Soviet Buran space program, completed in August 1983. Unlike the flying models, the OK-KS was used at NPO Energia to validate electrical systems, software, telemetry, and pneumatic-hydraulic tests. 📸🚀
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ISS Reshetnev shares last year's footage of the high gain antenna for Orel spacecraft, as well as solar panel drive/actuator control system for the NEM module
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aCa retweetledi
One of the prime reasons why mAh is stupid when it comes to battery capacity measurement.
Whoever thinks a phone's 7,000mAh battery is better than this laptop's 5,360mAh battery needs to be sent to a mental hospital.
ALWAYS use Wh.
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@jpucheu @SlavAesthetics Yes, they in fact do. J-35(A), I think, do too
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@GeorgeN28581 A thrust reverser for T-75 would be nice like in AJS-37
youtu.be/fBE41A9VT3Q?si…
YouTube
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Personal opinion(!), the idea of a strike-multirole to replace Su-17 and MiG-27 reminds me of T-75 project. Unlike «Su-37», LTS is not agile or “fighter like”, but envisioned from the start to be cheap, unified and, most importantly, simple.
Really hope to see its success soon!
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This confusingly name «Su-37» is one of my favorite “early 90-ies” projects.
Delta-canard arearuled modular multirole strike aircraft made to replace the whole range from Su-25 to MiG-23(37) and even export MiG-21 is something previously not seen in Soviet designs.
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Fennec_Radar@RadarFennec
@GeorgeN28581 Let's be honest, part of the reason people like it is because it looks different and cool due to its black paint. But related to these concepts of the time, what do you know about the single engine concept?
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@danWpriestley @TailosiveEV @SawyerMerritt Love the final design.
Don’t you worry people will confuse it with Windrose?
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@TailosiveEV @SawyerMerritt The connector on the prior Semi was an early version (v2.4) of MCS. Not "proprietary" as anyone could have used it. We couldn't wait for final design to have >1MW capability, so we ran with what had been developed thus far. New Semi has latest MCS that is set to be standard
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NEWS: Tesla's redesigned Semi truck has just been spotted for the first time ever.
• Model Y style light bar
• More efficient
• Increased payload capability
• 1.7kWh/mile (15% improvement vs old Semi)
• Designed for autonomy
• 500 mile range
• 1.2MW (1,200kW) peak charging speed
• 800kW drive power
• Side windows don't go as far back
• Silver anti-slip diamond traction strips on side steps
• A lot more under the skin improvements
Volume production starts in the first half of 2026, with customer deliveries around that time.
Zanegler@HinrichsZane
@tesla_semi @danWpriestley here it is youtu.be/PJGFPR5vP2g
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@robert_savitsky For me to this day one of the best launch video compilation was from 2013:
youtu.be/u9DYT0GLTbc?si…
YouTube
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@robert_savitsky These guys give me such nice Space X vibes.
Wish I had money and ways of investing in Bureau 1440…
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Bureau 1440 shows photo of their Rassvet-2 satellite taken by another Rassvet-2 satellite.
"For this picture, we used service cameras that were not designed for shooting at long distances. Therefore, our engineers brought the satellites closer to a distance of 800 meters."
afec7032 🇷🇺@robert_savitsky
Rassvet-2 prototypes, launched in 2024 (Rassvet-2 №1, №2 and №3, launched on May 17th on Soyuz-2.1b from Plesetsk as secondary payload)
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T-50-2 makes its first flight with izd. 177 engine.
Astonishing how it is T-50-2 third engine.
Built with izd. 117, tested early izd. 30 (serrated nozzle), then late izd. 30 (hexagonal nozzle) and now izd. 177
Source: t.me/uac_ru/3969
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@TailosiveEV How does then this exist?
Zoox@zoox
Our Zoox Explorers program is now live in SF, and we're inviting members of the public off our waitlist! Zoox Explorers can ride point-to-point in the heart of the city, including most of the Mission, SoMa, and Design District. 🌉🎉 Learn more: zoox.com/journal/zoox-r…
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Now the gold checks are agreeing with us too
Jowua@JowuaLife
Cybercab WILL have a steering wheel - video summary of our call with NHTSA and some thoughts on why else it would make sense for Tesla to do this, from the perspective of a manufacturer.
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Soyuz-2.1b rocket is getting ready for assembly at the Vostochny cosmodrome
Meanwhile, fueling of the Fregat upper stage has been completed
afec7032 🇷🇺@robert_savitsky
All known payloads for upcoming Aist-2T launch from the Vostochny cosmodrome (based on a list from Forum Novosti-Kosmonavtiki)
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aCa retweetledi
@AatishKapoort @GeorgeN28581 @Mack8miltech Su-47 had s-ducts.
S-ducts eat up too much of internal volume. Combined with internal weapon bays you end up with not having much room for fuel, meaning less range.
Radar blockers are more cost-effective way.
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@GeorgeN28581 @Mack8miltech Canards gone. Levcons opted later. Wow
They did not change semi stealth intake though. I wonder why they did not opt for full s type intake for more front stealth
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Tu-160M with clearly defined and visible EO-MAWS apertures and scanning DIRCM turrets.
Source: t.me/uac_ru/3928
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@robert_savitsky Eyeballing the size based on solar array and engineers standing next to it would be:
2.7 to 3 m long
1 to 1.3 m wide
Around ~3 square meter antenna.
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Bureau 1440 shows their user terminal prototype designed to work on trains
As the company says, this variant should work in temperatures ranging from -50 °C to +50 °C, have a stable connection when moving at up to 400 km/h, and be resistant to vibrations.
afec7032 🇷🇺@robert_savitsky
User terminal, which was publicly shown by Bureau-1440 multiple times last year. (btw RSW page for some reason shows cropped photo of Starlink terminal and claims that it's a recent photo of Bureau-1440 terminal) ¯\_(ツ)_/¯
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@GeorgeN28581 @Mack8miltech @Flankerchan Why was the model shown with the flat nozzle?
People will assume that Su-57E (177) will come with a flat nozzle and not round serrated one.
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@Mack8miltech @Flankerchan Likely increase in core temperature and decrease in engine lifetime?
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Damn. Look at the inlet diameter. It is same as standard AL-31F platform but with Thrust level of 117S and even more.
For the record 117S/Al-41F1S for Su-35S have inlet diameter of 932 mm. The SFC figure is also wow. As typically it's 0.7-0.8 or more during cruise.
Michael Jerdev@MuxelAero
New data on Izd. 177 & 177S. #DAS25
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@GeorgeN28581 @HeatB45409 Heard that 177S can have increased thrust but then service life will decrease. This 177S version with increased thrust is ment for Su-57E.
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@HeatB45409 It has relatively the same static thrust, a tiny bit better subsonic SFC, but has greater thrust on supersonic without afterburner, is easier to maintain and has more service life
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AL-51F1 is product 30.
Product 177S is a different engine. It has some AL-51F1 tech in it, but those are two different engines.
177S is mainly made for replacing AL-31F(product 99) on T-10 family aircraft, such as Su-30MKI. It also can be used on Su-57E
“30” won’t be exported.
OSINTWarfare@OSINTWarfare
Russia will present the new AL-51F1 (Izdeliye 177S) fifth-generation engine, designed for the Su-57M1 and Su-75 Checkmate, at its exhibition stand at the Dubai Airshow 2025.
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@rvcbrice @strike_masa 1. Currently there are “stealth” requirements with shaping affecting aerodynamics. RAM coating is a delicate substance, it is very hard to make it consistently survive mach 3 flights without loosing effectiveness.
2. MiG-35 is almost dead. Export 75 will be better in every way
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