Sukhoi Su-27/30/33/35/37 Flanker series & Su-34 Fullback - History, Design, Performance & Dissection
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Source?
But damn that’s a huge difference, few aircraft will have a 1100 kph sealevel topspeed with afterburner on while UNLOADED, that’s just absurd…
I’m excited to see what the devs will say cuz if that’s really true then this completely changes the plane.
Same
Not sure why people get salty at me …
I like the aircraft
But it seems that the reality is different from expectation …
Again, 3 solid & recent primary sources agree on the 1100 kph figure.
As for high alt speed, UAC specifies in kph (1500) and ROE says 1.45 and FSVTS says 1.5 (which could just be rounding of 1.45, or semi-old info, since the listing is for Su-32 instead of Su-34E).
But it is clear to me that the 1900 / 1400 figure has no basis in reality.
Because it wouldn’t make sense for them to give the real speed for decades then retroactively classify it and humble themselves and say it only goes 1100 :)
The other possibility could be due to safety concerns that were found out later but I doubt that because UAC’s website in 2017 says that the performance specifications are classified and it’s literally the same page that later in 2023 gives the 1100 figure.
This makes it clear that the older 1400 figures are fake … Because if they were real and present in the publicly and internationally available 2005 ROE brochure, there would be no reason for UAC to say “sorry we can’t tell you, it’s classified” in 2017 …
Forum Army 2018
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I digged through the archived versions a bit more.
Until Jan 2023 the UAC website listed it as “Classified”:
Since around Mar 2023 it started giving figures (1500 high alt / 1100 deck):
https://web.archive.org/web/20230308023818/https://uacrussia.ru/en/aircraft/lineup/military/su-34/
IMO he is making a buss over nothing. He don’t know why the Su-34 has these value now. It could be that the maximum take off weight have increase with new stuff like 3tons bomb… etc etc.
More funny its that a Su-34 clean with just fuel should weight about the same that a Su-30sm with full load.
Also i would never trust a Russian “brochure” over anything They are just bad at marketing. Example the old Knaapo brochure for the Su-35s Take the Khibiny pods into account for weight and the Wingspan (15.3m). That its why some people are under the impression that the Su-35 has bigger wings over other Su-27. But IRL the wingspan its the same 14.7m just like any other flanker.
LOL
1450 kph vs 1100kph on the deck is a fair bit more than “nothing”
It doesn’t have those values “now”
It always had those values.
They were just not given to the public because they were “classified” (as stated by the manufacturer’s website until around March 2023)
And of course drag doesn’t matter and weight is the only thing that determines your speed …
Also the reason for lower speed (might or) might not be that the aircraft doesn’t have enough thrust to reach those speeds.
But rather it might be that it can’t go above the specified max speeds due to buffeting etc
Either way, when the manufacturer says it goes max 1100 kph on the deck, then it goes max 1100 kph on the deck … Whatever the reason is …
(If we assume it’s due to buffeting and structural limit, it would make it only worse … Since the Vne and Mne would have to be adjusted and lowered as well)
Then you provide us with a source.
All these sources (both the 1900/1400 figures and the 1500/1100 figures) are brochures …
Let us know what makes you think that the aircraft is faster than what my report says …
garbage take tbh. wing span calculation and top speed calculation are totally different things and wing span =/= wing area. those values may be misleading in some ways but he is stating his case clearly and backing them up with sources from manufacturing country/company.
now, if you have any source (that is not classified) that backs in-game numbers up feel free to share and debunk his claims. that would be the proper way instead of dismissing them with some made up excuses.
He don’t back up anything. Just post some random pic without context behind it. E on Russian shit are mean to export. You don’t know what they change in these plane. If we use his info about SU-34E that mean Su-30sm next to be add in game its also wrong. Because Su-30smE has lower max speed than SU-30sm or SU-30MKI from india.
Do you know what change from Su-30sm/mki to the SME?. You don’t. These value mean nothing until you know what shit they change.
Where dis you get the sources ? ^^’
I don’t understand what’s wrong with you? …
Su-34…Mach speed=1.75
1.At an altitude from 0 to 11 kilometers, this is approximately = 2142 km/h…
2. At an altitude from 11 to 25 kilometers, this is approximately=1858 km/h…
In the USSR/In Russia, the maximum speed is given for an altitude of 11 kilometers…
3. So the speed indicated in the advertisements is 1,900 km/h at an altitude of 11 kilometers…
4. The speed of 1100 km/h on earth is the speed with suspensions, 1400 km/h on earth is the speed without suspensions!
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i cant post them here without getting banned
is that enough?
but if you mean the ingame flightmodel it is this:
LOL
That’s a way to start a conversation
OK
But how did you get from “Su-34” to “Mach speed=1.75”
Does “Su-34” mean “Mach 1.75” in Russian or is there something else that I can’t understand?
What is the source for that?
Altitude is not the problem here
It doesn’t matter if the speed is at 1000m or at 100000m
The issue is that the aircraft is not supposed to go that fast at any altitude …
No, the manufacturer (which listed the speed as classified up until around Jan-March 2023) clearly states that both the 1100 kph maximum flight speed near the ground and 1500 kph at altitude are “without mounted items”:
The same manufacturer listed the specs as “Classified” until around Jan 2023 on the same page …
Unless they are removing one of the engines, it’s not gonna make the same airframe go from 1450 kph max speed on the deck to 1100 kph max speed on the deck
Separate issues …
And the whole “we shouldn’t let them fix this one or else they might try fixing the rest” is not the strong argument that you think it is …
Su-30SME is not that different from Su-30SM either
The difference is mainly in avionics … And different RWR or MFD etc isn’t gonna drastically change your maximum speed …
But again, separate issues …
There is no reason to think that Su-34E should have a different maximum speed than Su-34 (and as drastic as 1100 kph vs 1450 kph)
As I have already explained, it’s the fake number.
As clearly stated by UAC’s website, the speed was classified until around Jan-March 2023.
Again you don’t know what modification these E model have. They could even be Second hand models and the lower speed its to no stress the frame given them more life time. Why this new SME its even a thing?. When Russia was already Selling Su-30sm to country like Kazakhstan.
Also there is news or Rumors that endorse those claim. Ethiopia acquires Akinci UAVs, Su-30 fighters - defenceWeb. Aka Old models Refurbish to Su-30sm standard.
Su-34E could be the same thing. Old Su-32 model Modernize to Su-34 standard.
Not that WT is the best aerodynamic simulator out there, but just for the heck of testing it and to show how absurd the claims of “That’s only for the export Su-34E, the domestic one is different” are:
In WT if you completely shut down one of Su-34’s engines which not only halves your thrust but also introduces additional drag by compensating for the asymmetric thrust, it still goes around 1220 kph on the deck …
I don’t care what it has
Nothing that it could have can explain the speed difference of 1450 kph vs 1100 kph