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

The thing its like 3.5 tons heavy than the Su-30sm but it have better engine. Take a kit full of R-27ER that its almost 2 tons and check the speed.

edit; A 24500tons+fuel Su-30sm. That its heavier than Su-34 (empty weight) with worst engine.

Edit2; same config at alt.

But but… Such Huge Bomber… bs

bonus i broke the wing on this thing while writing.

Su-30SM is also too fast

It should have a max speed of 1350 kph on the deck

Cross sectional area is one the main factors that affects drag.

Just look how “chonky” the Su-34 is compared to the two other aircrafts.

The engines are barely more powerful than Su-30SM, and they are weaker than Su-35.

Sure by the info on these Su-30SME based on old Indian Su-30k retrofitted… Right? sure sure…

Yeah yeah, HUD, RWR, MFD and IFF equipment etc affects your max speed …

I have no doubts about the data from Sukhoi’s website!..
Compare…
1.Su-27SK…

Spoiler

2.Su-24M from a well-known website… Уголок неба ¦ Сухой Су-24М
https://web.archive.org/web/20160918013859/http://www.sukhoi.org/planes/military/su24mk/lth/
The 1400 km/h limit is most likely a strength limitation for the T-10 family… .
3.We like to confuse people with the names of aircraft…

Spoiler

Снимок экрана 2025-03-20 055930

I mean if they’re heavy, they kinda do?

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It’s not like one variant has no equipment.
The avionics are just different models / from different origins.

Weight difference is gonna be minimal, and the biggest factor for top speed is drag (external airframe shape and size), rather than weight.

I mean weight also affects drag you know. Can’t really discount it as a factor. Also aren’t these values just as good as stat card values? It’s not like the Su-30 would fall out of the sky the moment it hits max speed

Thanks, nice website

We are talking about what speed it can reach, not structural limit.

Different equipment (HUD, MFD, RWR, IFF etc) can at most result in a couple of hundred kg of weight difference (if even that; And usually they try to minimize the weight difference to make the change easier).

A couple of hundred kgs of internal weight isn’t gonna change the top speed of a 25 ton aircraft very much …

Like I said, it is not like it falls out of the sky once it reaches top speed

We are not talking about whether it falls or doesn’t fall
We are talking about how much the top speed is … I.e. how fast it can go before it doesn’t accelerate anymore … I.e. Thrust = Drag

and do you think this is a hard limit on the manufacturer end? doesn’t just that mean that Sukhoi can guarantee it’s safety up to 1,100kph?

Also is this taking into account Afterburner thrust or just dry thrust?

Depends

Sometimes the max speed is what the plane can achieve
Sometimes it’s what the manufacturer allows you to go

No way to know without the manual, but we are already in a territory where planes are still in service and manuals are classified …

Afterburner

And where in the brochure does it say that?


Test flight with dry thrust is within the magic 15% that Gaijin gives the airframe model

That’s what maximum speed means.

If they want to list speed with max dry thrust they will specify it …

Plus, I don’t think Su-34 would hit Mach 1.5 without afterburner :)

But how sure are you that’s what Sukhoi actually means by Max speed on the deck?