Sukhoi Su-27/30/33/35/37 Flanker series & Su-34 Fullback - History, Design, Performance & Dissection (Part 1)

Thrust is higher than it should be because intake losses are not properly accounted for.
To account for the excess thrust, they increased the drag.
The increased drag and thrust was also “amended” by a terrible oswald coefficient and made worse by incorrect geometry of the basic airframe in the files.

7 Likes

Yes, that’s right, they compensated for the excessive drag with thrust

2 Likes

How FM will feel when excessive thrust and drag will be fixed? Smaller speed bleeding but slower acceleration?

Speed bleed will be better, turn and AOA will be better, but sustained 1 circle fighting will drag you lower and slower faster.

In theory it should give you the ability to gambit and lock anyone at least once.

Should climb a bit better, and sustain flight a little better as well.

1 Like

If they used a mish-mash of T-10 models for the Su-27 I shudder to think of how they decided the Su-33 should fly…

1 Like

the su-27 situation is crazy

1 Like

It’s not even crazy, it’s plain stupid.

4 Likes

The plane also doesn’t accelerate correctly at lower angles of attack. At a 5G turn it will accelerate but it’s still short of its manual by 15 percent.

The entire lift/drag curve of the plane is completely wrong.

4 Likes

The geometry of the airframe is incorrect even in the files.
So Flanker flight model being horrifically bad isn’t a surprise at this point.

4 Likes

On a slightly more unrelated note…
How accurate is the Su-27S DCS module flight model?
I would assume it is way better than the War Thunder Su-27S.

@BBCRF

Frankly. It may have actually been a little different given the dimensional changes to the wings etc. Again, this is part of the reason why I think the Su-34 feels like the first real Flanker, I think they built it it’s own FM.

1 Like

The DCS is also not accurate, but it is much better than the WT

4 Likes

attempt number two
https://community.gaijin.net/issues/p/warthunder/i/nEtnXhhHysKD

1 Like

While I absolutely respect the attempts, tthe snail simply doesn’t want to spend development time on older fm. They’ve said that after ride2r did his thing.

Ahem
It’s new model for this major

My issue is about Su-33

fair, might actually get them to change it.

I’m sorry for the ping, @Gunjob, but can I get your attention here?
Thank you in advance

Forwarded. Cheers.

2 Likes

Interesting documentary «Властелины неба». Документальный фильм к 85-летию ОКБ Сухого и ОКБ «МиГ»

This is how Su-35 is supposed to use its airbrake compared to the Su-27 (in the back). Not sure if Su-34 uses it this way too.

This CGI show SU-57 has 4 or 6 R-73 missiles inside the missile bays, probably a mistake lol

Spoiler


3 Likes

Su-35 removed the dorsal airbrake to save weight, so it uses its control surfaces instead.