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

[meki98]

That looks like major skill issue…
From the missile itself
It did fly way to high and in circles

[sudo_su1]

@Anonymous4245

Weren’t early Su-34 also fitted with non FM1 AL-31s? That would make sense if the export versions also get it

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@sudo_su1

It absolutely does not matter what engine was installed on it. It will not make it go from 1100 kph to 1450 kph on the deck …

Drag is proportional to the velocity squared and a small increase in velocity requires a massive increase in thrust.

But since the Mach 1.45 (From ROE) / 1500 kph (From UAC) at altitude and 1100 kph (From all three sources) on deck figure seems to be with the 125kN engines (as per UAC’s website), the devs could account for the increased thrust (to 135kN) of the better engines.
UAC’s website also lists a 2% reduction for installed thrust. So given that the drag is proportional to the velocity squared:

(135x98%) / (125x98%) = (V2/V1) ^ 2
V2/V1 ~= 1.03923
V2 = 1100 * 1.03923 ~= 1143 kph

So with the 135kN engines (instead of 125kN engines) the speed will increase from 1100 kph to 1143 kph (and NOT 1400 or 1450 kph!)

[sudo_su1]

Bug report:

Russian guided bombs incorrect max release speed:

https://community.gaijin.net/issues/p/warthunder/i/GXDSC2gueyO0

Given that the minimum release speed is also given, I assume the 1100 kph figure is IAS/EAS.

This would translate to decreased Mach number on the deck but increased Mach number at higher altitudes.