R-27P/R-27EP/R-27EA/R-27EM

[Dragon1-1]

Note that the supposed 130km "range" quoted is likely flyout range, and an optimistic variant (supersonic launch) at that. The actual claimed effective range is something like 65km, I suspect the range given here is based on that.

[Ronin_Gaijin]

29 minutes ago, Fran11player said:

 

If you take a look at the game's encyclopedia, this is what it states. (Sorry for the Spanish, can be understood anyway).

nullEven more important than the speed, I think that the range is absolutely nerfed, being the true real range of the missiles up to 130km, and also the Gs, which are up to 26 Gs in the 27ER.

To make things more even and fair, proper numbers have to be implemented in these missiles.

 

[Raven (Elysian Angel)]

29 minutes ago, Fran11player said:

If you take a look at the game's encyclopedia, this is what it states.

In pretty much all documentation, when talking about a missile's speed you need to add the speed of the launching aircraft to it.

[Ironhand]

Quote

5 hours ago, Fran11player said:

 

If you take a look at the game's encyclopedia, this is what it states. (Sorry for the Spanish, can be understood anyway).

nullEven more important than the speed, I think that the range is absolutely nerfed, being the true real range of the missiles up to 130km, and also the Gs, which are up to 26 Gs in the 27ER.

To make things more even and fair, proper numbers have to be implemented in these missiles...

 

IDK. In a quick test, my R-27ER went 200km and reached a top speed of roughly M 9.8 (5650 km/hr at 20,500 ft). Obviously, that's not shooting at a target but, then again, what are the actual conditions under which the published numbers are generated?

Edited May 24 by Ironhand

[Muchocracker]

5 hours ago, Fran11player said:

 

If you take a look at the game's encyclopedia, this is what it states. (Sorry for the Spanish, can be understood anyway).

nullEven more important than the speed, I think that the range is absolutely nerfed, being the true real range of the missiles up to 130km, and also the Gs, which are up to 26 Gs in the 27ER.

To make things more even and fair, proper numbers have to be implemented in these missiles.

The encyclopedia is not accurate and doesn't reflect what is in the actual LUA files. 

[AeriaGloria]

5 hours ago, Fran11player said:

 

If you take a look at the game's encyclopedia, this is what it states. (Sorry for the Spanish, can be understood anyway).

nullEven more important than the speed, I think that the range is absolutely nerfed, being the true real range of the missiles up to 130km, and also the Gs, which are up to 26 Gs in the 27ER.

To make things more even and fair, proper numbers have to be implemented in these missiles.

The encyclopedia has no bearing on the performance in game. They just posted a medium altitude top speed. It easily can do Mach 4 or more in game. 
 

The R-27ER could hit 130 km shots in game except there’s nothing fast enough with big enough RCS for it. Idk maybe if I try against Tu-160. You are basically limited by the lock range of the Su-27 radar, which is 25% less then the detection distance. 
 

I’ve hit shots over 120 km with it, which was the furthest I could get a lock on a MiG-31. The TOF was a few seconds less then 60, which proved it could go further and most likely make 130 km. 
 

It’s performance will slightly improve with the FF MiG-29 as the current API can’t calculate motor plume drag reduction, and the new API it will be moved to for FF 29 release can do that. But I’ve been told this will mostly help it in rear aspect shots. 
 

The encyclopedia has no bearing on what’s in game, it often has incorrect weight and other things. Try the R-27R in game and you will find it hits its charts pretty damn well. With the same set up I used for my 120+ km R-27ER shots. I got 90 km from R-27R. Which is exactly what the MiG-29 manual says is the absolute maximum Theoretical range. You could change encyclopedia to Mach 1 and it would make no difference in game. 
 

Also here is a chart of launches at ground level and 10 km alt at Mach 1. Notice it doesn’t reach Mach 3 in either case. That’s why you want to launch closer to Mach 2. Considering charts are for subsonic launch I would say that Mach 3 is a damn reasonable top speed to put in the encyclopedia. 

Edited May 24 by AeriaGloria

[Fran11player]

hace 3 horas, Ironhand dijo:

 

IDK. In a quick test, my R-27ER went 200km and reached a top speed of roughly M 9.8 (5650 km/hr at 20,500 ft). Obviously, that's not shooting at a target but, then again, what are the actual conditions under which the published numbers are generated?

Do you have acmi file or something to see? I just tried to do with the Su-27 (with MiG-29 FC radar you cannot block the bogey long enough) and cannot launch the missile before 35 NM / 56 kms at 35.000 feet M1,4.

[AeriaGloria]

44 minutes ago, Fran11player said:

Do you have acmi file or something to see? I just tried to do with the Su-27 (with MiG-29 FC radar you cannot block the bogey long enough) and cannot launch the missile before 35 NM / 56 kms at 35.000 feet M1,4.

I think iron hand made a typo. 5650 kmh is more like just above Mach 5. 
 

If you can’t launch beyond 70 km, what’s alt and speed of target? If you’re at Mach 1.4 and 12+ km alt, with same speed and alt target head on I would expect more like 90 km range. 
 

ER speed from fast launch

Edited May 24 by AeriaGloria

[Fran11player]

hace 1 minuto, AeriaGloria dijo:

I think iron hand made a typo. 5650 kmh is more like just above Mach 5. 
 

If you can’t launch beyond 70 km, what’s alt and speed of target? If you’re at Mach 1.4 and 12+ km alt, with same speed and alt target head on I would expect more like 90 km range. 

Here I attatch the TacView file so, if keen to, you can give me advice.

Tacview-20250523-182701-DCS.zip.acmi

[Ironhand]

10 hours ago, AeriaGloria said:

I think iron hand made a typo. 5650 kmh is more like just above Mach 5.

Actually, it was a case of GIGO. I failed to change the TAS units from knots to km/hr in the conversion formula. It should be M 5.1.

@Fran11player I’ll attach the TRK file to this post later, once I’m back at my computer. But, like I posted, this was not a launch against a target. I didn’t even bother turning the radar on. And it’s the radar range that’s actually the most limiting factor.

EDIT: Attached TRK file. Like I said, there’s no target. Just wanted to show that the numbers you get (and sometimes see reported) depend on how the test is conducted. Unless you know the test parameters, you have no real understanding of what the numbers mean.

R-27ER Range and Speed1.trk

Edited May 24 by Ironhand

[draconus]

If the missile range or speed is provided without any launch parameters it's just pure marketing as there is no one standard for it. As one can see the differences can be huge. The missile likes to be launched high and fast - giving it high starting speed and the advantage of flying in low drag thin air. Launch it low and slow and you'll get single digit range, much slower speed. Physics.

Chizh once said "launch the missile from satellite and its range will be global (intercontinental)"

Edited May 25 by draconus