SU-25T speed

[Ace Of Spades]

Hello there, what is the maximum speed of the free SU-25T available at first? I downloaded the game a short time ago and I'm learning the commands but the free mode plane only reaches 250Km/h(155mph), it has afterbuner being able to reach above 1000Km/h (621Mph)?

[Insônia]

Frogfoot is turbojet but no afterburner.
Her role is close air support. Capacity is more important.
The HUD speed is IAS , indicate air speed. measured by pitotube. It related to the air pressure and temp and other factors. not ground speed or true air speed.

It has speed limits by airframe and structure, definitely not 1k IAS, but if you fly high enough.

Above 26000ft 600km/h ias @ 20 C sealvl temperature. The TAS is above 1k for sure. It is possible reach that speed with some payloads of 0 load.

[Ace Of Spades]

Originally posted by Insônia:

Frogfoot is turbojet but no afterburner.
Her role is case close air support. Capacity is more important.
The HUD speed is IAS , indicate air speed. measured by pitotube. It related to the air pressure and temp and other factors. not ground speed or true air speed.

It has speed limits by airframe and structure, definitely not 1k IAS, but if you fly high enough.

Above 26000ft 600km/h ias @ 20 C sealvl temperature. The TAS is above 1k for sure. It is possible reach that speed with some payloads of 0 load.

Thanks for the tip, by the way is it possible to install mod that add in the game planes like F-22 or SU-57, Saab JAS 39 Gripen or Dassault Rafale?

[Ace Of Spades]

Originally posted by Insônia:

Maybe someone has "skin" to *replace aircraft in flamecliff pack.
But it just a *skin* ,3d models. Not sure of those you listed. You can try search the DCS website or offical forum.

There is only one f4 mods have quality flight model/physics at moment.

There is no way ppl get flight data on those last gen stuff.

Thanks!

[Snork]

The Su-25t performs a role equivalent to the US' A-10 warthog. Expecting 1000 km/h out of it is way too much.

It has no afterburner. Expect more like 250-350 km/h. It is not a fighter jet. The T in Su-25t stands for tank. As in designed to ruin them. A single su-25t could take down about a dozen MBTs on a good day.

It's heavily armored and even has an IR signal disruptor built into the tail.

And any non-standard aircraft is going to be highly inaccurate and janky as hell. There are no accurate specs and the game isn't friendly towards that kind of modification.

It kind of goes against the spirit of the simulator, that being to accurately simulate these aircraft.

However don't think of the Su-25t as a "free" aircraft, as opposed to 'premium'. It's as fully featured as any other aircraft with a similar degree of realism/simulation (it compares most accurately to the flaming cliffs bunch) and has a professional level of flight model accuracy.

[Troll Norris]

The speed limit of SU-25T is around m.75 or 750KIAS (cca 466 mph or 405 kts) In aviation the speed is measured mostly in knots (nautical miles per hour) and distance in nautical miles.

In the SU-25T the speed is measured in kilometers per hour and distance in kilometers.

I have nothing more to say. Everything else was written by others.

Edit. I am not sure if you know the difference between indicated airspeed (IAS), true airspeed (TAS or mach speed) and ground speed (GS). It is quite important to know the differences of those terms when we talk about the speed of aircrafts.

[MadJiitensha]

Tip. From what i see by flying it. Reach 1km altitude and thenfly down, hold just above ground and youll stay on ~700kmh even on full load, 100m average (im doing like that even 1t over max cargo). The higher you go, slower you go, and easier target you are.
My record was 1200kmh but with 100l of fuel left.

[Snork]

yeah, that's 1200 kmh going down hill, shaking the bolts out and probably threatening to break something badly haha Not a feasible or realistic cruising speed.

but yes, given its designed to attack targets on the ground, it achieves its best performance at relatively low altitudes, but it doesn't need to be flying belly to the ground in order to get that kind of speed. in fact, you'll often want to be flying higher in order to make yourself a more difficult target for any anti aircraft fire. I'd recommend giving flying above AA's engagement altitude a try, and at that altitude you can really lay on the engines and need far less thrust to gain far more speed.

Another thing, OP, so many questions that I had about the general performance of DCS aircraft was able to be answered simply by pulling up the wiki for the aircraft in real life. One of the nice things about playing a serious sim is that you can use descriptions of the capability of the aircraft in real life, along with its preferred tactics and directly apply that knowledge to the game.

I don't think I've ever found a mismatch while operating in this fashion.

And to be clear, what the previous poster said is a bit twisted, though clearly well meaning, it's actually backwards. As a rule, in aviation higher altitude ='s higher cruising speeds due to air being less dense..

It's not the altitude that slows you down, (generally at higher altitudes you'll achieve faster [cruising] speeds due to the air being less dense which results in less friction working against you speeding up)

What the previous poster is describing is using gravity for a speed boost (ie go a kilometer up and dive straight down..aka give yourself a gravity afterburner haha) But that 700 km/h isn't happening because you're at a lower altitude as they indicate, but simply because you spent all that time diving. You can achieve the same speeds at higher altitudes with far less effort.

[Troll Norris]

Originally posted by MadJiitensha:

The higher you go, slower you go...

This is not exactly true. The IAS (speed shown on your HUD) is not your real speed. You have to check the TAS or mach indicator that shows your True air speed.

It is because the way how the air speed meter works. In low altitudes the air is dense so there is many particles of air pushing into the pitot tube. In high altitudes the air is much less dense so there is also much less particles of air pushing into pitot tube. That's why the information about speed is not true in high altitudes. But the indicated air speed meter gives you information how much "mass" of air is flowing around your drag. So it also says how much lift is generated.

The more important is the highert you are, the less air density is which is better for missiles because those have much less drag in high altitudes than in low altitudes. So in the higher altitudes the missiles have better performance. That's why the lower altitudes are better. But still, if someone shots the R73 on you, then you are most probably dead.

On the other hand the high altitude gives you time for decission and you can easily change your potential energy to kinetic energy.