Fwiw, I think the T-50’s bay doors are significantly wider than the S-37’s (i.e. the latter’s modified test bay is not a T-50 scale replica- it was probably down-sized to fit the S-37’s internal structure, and still protrudes somewhat).
Hence, 3 R-77Ms (staggered) should be feasible.
I gave it a try, and appearently, 2 R-77Ms is perfectly feasible, but 3, in an asymmetric manner, like R-37s on MiG-31Ms, is not. 3 x R-73Ms is also feasible.
I made two models with two possible configurations, in the first one, it is impossible to fit 3 R-77s asymmetrically. The missile models were picked up here: Of course it was made in a hurry and I certainly don’t claim a prize for accuracy-to-scale, but I think it roughly corresponds to the dimensions with the presupposition that the bays are lengthy enough, but not lengthier than necessary, to acommondate R-77s.
This reinforces my claim that 8 missiles as it is, is highly unlikely. The way I see it, the only way to fit more missiles, is by inserting them deeper. Any correction/suggestion is welcome.
Detachable fuel cartridges instead of drop tanks:confused:
Another member claimed a few pages ago that they might be EW pods. I think it is much more likely. Too small to be fuel tanks, and too much internal fuel to need external fuel tanks anyway.
Hi,
I just read something from paralay’s forum and a statement is made by Pavel from Paralay that PAK-FA will carry 8 in the 2 weapon bays and 6 short range AAMs somewhere else. Is Pavel the person with inside information š®
If it is true, then we are not talking about a fighter but rather about a flying artillery piece.
However, we have all seen pictures of the PAK-FA, the places to hide AAMs are too specific and that’s just between the engines, no other bays appearently. So he probably refers to external carriage which, let’s face it, isn’t exactly news.
As for 8 internally, I guess it remains to be seen. I think it would be difficult to stash 4 whatever current russian missiles in those bays.
If it’s the case, they should either found out some ways to scramble 4 in each missile bay or create new type of missile with similar characteristics and smaller size š
Yes, that is a good probability IMO.
Those guys look suspicious:
[IMG*]http://paralay.iboards.ru/download/file.php?style=12&id=9462%5B/IMG]
If the drawing is accurate, which I can’t doubt it is, I would presume that the PAK-FA, like its predecessor is really a flying fuel tank. WTF? The Su-27/30 has fuel tanks even inside the vertical tails…
On the other hand, we have no clue on its new engines’ consumption rate. Any speculations?
4 is R-33/R-37 is the max load that type of missile in the main weapons bays (again assuming the dimensions are the same as the S-37 bay). That doesn’t mean she won’t be carry a mix of different weapons.
and to add to that, 4 in the main weapons-bays…
there are 2 more for carrying dogfight missiles. Plus there is the good old gun…
Just to avoid repeating ourselves, I have stated I don’t feel the underwing pods are meant to house missiles; of course I can’t prove but neither can those who support the idea. So that remains to be seen.
If this is the case however, then it makes perfect sense as one bay could easily hold either 3 R-73s or 3 R-77s. That makes 7 missiles in total, or 8 if it’s an all R-77 loadout. In consequence, 14 or 16 missiles for each pair of fighters. Taking into consideration that not all of these missiles will hit their target due to either inefficiency or countermeasures, this number is *adequate*, it’s not that anybody would expect an 100% kill ratio with missiles only, that has never happened, on the contrary we have solid examples of tragic hit percentages in recent air conflicts.
However, I somehow think only 2 R-37s for each bird would not be enough, probably it would make more sense for one or two birds in the formation to carry an all R-37 loadout and the rest an all R-77, but it would depend on tactics I suppose, as well as accompanying fighter types, as Otaku pointed out.
Any airplane is a compromise. If you say, “the more AAMs the better” that is you say “the less fuel the better”. So, designers (or more exactly, military people who prepare requirements for designers) have to specify some most typical task, for example, to deliver 6 missiles to 1,000 miles.
If we are talking about internally carried weapons then yes, that is definately the case. But we should bare in mind that the number of missiles depends on their dimensions; At this point, we can only make whatever speculations based on existing missiles’ dimensions, but that is likely to change in the future, as any new weapon in development will be designed with the PAK FA’s bays in mind and not vice versa. The same will be in the west, any new weapon sould be compat enough to fit inside F-35’s bays, if its maker wants any hope for sales in the international market, since the F-35 will be around for a while.
BTW, typical weapons load for MiG 1.42 (larger than the PAK FA) was four K-77Ms plus four short-range missiles.
But that makes 8 of them, just like on the F-22. Jeez, these Russian and American designers must be really ignorant. No, correction: ignorant and stupid. A pity key forums did not exist when these birds were designed, both Russia and USA would have save lots of money. :rolleyes:
Completly hypoteticaly.
I think if US would face a Airforce like the RuAF or perhaps PLAA, USAF would allso go with 2 missile fired simult!
Hypothetically, of course! Because a conflict at such a level has never happend, not even close. USAF for instance has only been fighting adversaries who are either inferior, or outnumbered or (mostly) both.
The F-35 will also be able to carry the JSOW-ER internally.
Yes, you are right, thank you, it’s just that this was not always the case. š
Isn’t it that missiles have very limited captive life? I believe they are designing for a given number of take-offs and landings and also a number of flying hours due to fatigue.
Yes, it’s true. That’s why, as I pointed out, during peacetime fighters are loaded with the minimum possible payload for excercises, or none at all. I suppose this equally applies for internally carried weapons, but to a lesser degree.
Many years back now, I recall reading that Russian A2A strategy involved firing 2 missiles against a target simultaneously.
Was this in fact the case and if so, is it still?
AFAIK this was indeed the case and has not changed so far, that’s why IR guided R-27s and R-77 were developed or are in development. If there is any other source out there directly stating the opposite, it’s welcome.
Once again for those in the cheap seats. My “arguement” is that nobody has used 8 in a single mission. Therefore whining that a fighter doesn’t carry MORE than that is idiocy. Clear enough?
Crystal! Except one thing, nobody whined for the PAK-FA needing MORE than 8 missiles. Fantasising, fantasising, fantasising, fantasising and again: Fantasising. Oh, did I also mention fantasising?
Do keep up. You don’t contribute to the discussion, but at least it’s entertaining.
:rolleyes:
The point is that there have been missions when all available aam’s have been used. Thus the aircraft concerned has had to dis-engage and retire.
Therefore it seems a reasonable suggestion that as many aam’s as possible is better, not “you only need x.”
But you know that was the point; you just don’t want to acknowledge it as it doesn’t fit your arguement. š
Thank you, it’s really as simply as that. š
Now if you excuse me, I don’t have any other time to waste on a single member’s viciousness.
Hi HAWX ace
Do you think they will might use the rotating dispenser with R-77s on it in they bay in order to fit 4 R-77s in a bay?
I think it’s quite possible to do that given the estimated width of the door, but I am unsure about the depth of the bay though.
I think that would be the only possible way to do the job, but it would vastly depend on the depth of the bay, which in turn would depend on the level of sacrifice in internal fuel the Russians would be willing to do.
Mind you it does mention Bill Sweetman in the notes of the article so you will probably dismiss it…
Oh, well, it’s a waste of time I know, but… for the shake of other members reading the thread, here’s another source which *does not* cite Bill Sweetman. A few interesting extracts:
F-4s over Vietnam
“Lts Hawkins and Dose took of from USS Constelation (CV64) on a CAP mission with their F-4Js carrying 4 AIM-7Fs and 4 AIM-9Ds each.
<…>
“Dose then fired a second AIM-9D. Because of the battle’s frustration, he thought it was his third AIM-9D and was disappointed to have only one left, so he considered disengaging.”
<…>
“In total, 4 AIM-9Ds were fired until this point with all failing to hit their targets. For a moment Hawkins considered using his AIM-7Fs, but he was unable to due to too much clutter in his screen. He even thought of wasting one just to distress the MiG pilot’s attention to bring him in a more favourable poistion for AIM-9D shot.”
<…>
“Hawkins by now had only two AIM-9Ds, but the situation was now against him”
<…>
“His RIO Jim McDevitt realised they were out of AIM-9Ds and could not fire AIM-9Fs and at the same time they were running low on fuel due to continous use of afterburners. Eventually they called KA-6 aircraft to manage their disengage”
Source: Airplane Magazine, issue 69, Aerospace Publishing.
And don’t forget the Falklands, 1982, and that little spat between Ecuador and Peru in the 1980s.
Yes, and also, don’t forget that little spat between Greece and Turkey in the nineties. And a few other minor conflicts elsewhere. Also, some accidental launches.
I don’t see how that list is relevant though. Encyclopaedic reference? In none of these conflicts we saw 8 AAM capable fighters fighting each other, did we? However, when 8 AAM capable fighters were involved (F-4s in Vietnam, F-15s in Gulf) there were cases where they depleted their AIM-7 load. Even in Yugoslavia, I recall of a Dutch pilot who fired all of his AIM-120 in a single mission. Plus, the most AAM kills in single mission were 4, by an israeli F-16, which was then forced to withdraw.
So at the end of the day, we have never seen a major air conflict where the theory of “8 AAMs being too much” could be verified. The Americans on the other hand did bother to not only fit their latest F-22 with 8 internal AAMs, but also with ability for 8 more externally.
Tres bizzare, no? :rolleyes:
BTW, nobody seems to mention the KS-172 as an armament for the PAK FA, is it too big to fit in the bays or has everybody lost interest in it? Is it really important that it can’t fit into the bays, wouldn’t be just as well to hang them from wing pylons,
Bearing in mind the ranges it can be fired from, a lack of stealth shouldn’t be a problem?:confused:
I believe there are two versions of the KS-172, the long-body one does not fit for sure, I don’t know about the other. As for the second part, the lack of stealth would not be a problem only versus a non-AWACS equipped adversary I presume. Also, what happens to the pylons after launch? Would they be jettisoned too? Does not sound very practical. I would assume that external payload would only be carried when stealth is not necessary.
One thing.
Before trying to put “8 is enough missiles” argument on the table, one must realize that most engagements were canceled due weapon shortage and the rest one or two missiles (depending on situation) where left for a way home, just to be safe.
Exactly. In fact, in peacetime excersices and so on, few missiles are loaded, or none at all, it’s common practice. But once in war, all pylons somehow are busy.
Completely apples to crescent wrenches. May as well be comparing fighter load out to 9mm rounds in a magazine, it’d be about as relevant.
Sorry to let you down, but it’s no good to (try to) reject an argument as irrelevant just because it happens to blow you claim.
That “philosophy” is based on firing IR and radar-guided versions of the same missle back in the 60s & 70s. I don’t see them firing off one AA-12 and one AA-11 at each target these days.
Except one thing: I never said anything about R-73s. But it’s ok, I understand. After all, you do have a history of fantasising things other people never said.
I was referring to IR-version R-77s, last time I checked there was one in developement.
You mean like Vietnam or the opening days of Desert Storm? Or perhaps the Bekaa Valley in ’82? Or do you only consider WWII-type 1000-plane raids “major” air battles?
You are right, I was wrong and therefore I rephrase: In the cases you mention plus the war over Yugoslavia, there have been instances in all four cases of fighters depleting all of the missiles they were carrying.
Thanks for making my point!
The fact remains that when carrying weapons internally every missile more than what you need extracts a MUCH higher cost than simply slapping on another pylon.
If you desperately want to say something, then of course, many facts remain.
The Kh-31 is most certainly not going to be covered.
The Kh-58USHKE will fulfill this roll, which would include anti-ship strike on an emitting vessel.
KAB-1500 I’m not sure, I haven’t seen a length published for the weapon.
The situation with the PAK-FA weapons-wise is the exact same as with the F-35: at the first years in service they will only fly with limited variety of weapons, just because of weapons bays’ size limitations. But gradually this will change as more weapons will be developed with the bays’ dimensions in mind. The F-35 was criticised for the lack of an internally carried cruise missile, but that will change with the development of at least the NSM.

As for KAB-1500, I believe Paralay posted a sketch a few pages ago also portraying it.
The good thing about the S-37 bay is that it can possibly carry 2 R-33/37 size missiles (Paralay’s sketch).
We ‘ve seen at least one sketch with 3 R-37s and 4 R-77s. I don’t believe it, but it makes appearent sense.
http://i214.photobucket.com/albums/cc123/Hawkwood_777/Russian%20weapons/PAK_FA_color.jpg
Ahhhhhrrrrgggg…! True! The MiG-31M can carry 6x R-37. My mind was on the older MiG-31 carrying 4x R-33. Still 4 R-33/R-37 type missiles internally is impressive (assuming the T-50 bays are the same as the S-37 bay). T-50 is required to carry large A-to-G munitions internally (Kh-38, Kh-58 and IIRC KAB-1500, kh-31 etc). Would be interesting to the the arrangements..
Your assumption of 4 R-33s however totally leaves out small range IR dogfighters. That would make it pretty well a return to Su-15/MiG-25 configurations…
Or maybe they realized “hey, there have been fighters with 8 AAMs since the 60s and nobody’s ever used all eight in a single mission”.
That’s right: maybe. Or maybe, by the same logic, there have been SLBMs since the 60s, but nobody has used in any mission, so perhaps 16 tubes for each Vanguard/Triomphant/DeltaIV, let alone 24 for each Ohio is too much then? Maybe they should reconsider??
Since we are talking about a russian fighter, and based on the russian air combat filosophy, a large number of missiles on a russian fighter makes perfect sense, the opposite would be weird. 8 missiles are more likely 4 shots, rather than 8 or 3 if it is 6 missiles maximum. That is 2 missiles on each shot.
On the other hand, of course there haven’t been used 8 AAMs at a single mission since the 60s. But then again, there has not been any major air conflict since the 60s so that theory is not much more than yet another theory…
Also, we don’t know how DEEP those bays are.
That’s right we don’t know, all we can do at this point is speculate, nobody can either claim or deny anything for sure.
Personally I think the bay that was tested on the Su-47 is a smaller version of the PAK-FA’s weapon bay. In that case I think that the bay on the PAK-FA will be able to accomodate at least 6 R-77s and two short range R-73/74s in the small pod under the wing and that will bring them 8AAMs in internal storage.
Let’s look at these pictures:
[*IMG]http://img34.imageshack.us/img34/9168/su47view.jpg%5B/IMG]
[*IMG]http://pilot.strizhi.info/wp-content/uploads/2010/01/KOD-016-300110_s.jā¦]
Proportionally, the weapon bay on Su-47 is roughly 1/14th to 1/15th of the wing span which brings it to the width of around 1m (Su-47 wing span is ~15m)
On the PAK-FA, the weapon bay is roughly 1/10th of the wing span, which will result in the width of around 1.4-1.5m (PAK-FA estimated of wing span of 14.8m)
Hypothetically if the weapon bay of PAK-FA has the estimated width of 1.4-1.5m, the chance that it will be able to hold 4 R-77s each bay is quite possible since the R-77 wing span is 350mm and the version on PAK-FA should have foldable wings. Also, the weight of a normal R-77 is 175kg, so if it’s 4 R-77 each bay it will be 700kg which corresponds to some earlier speculation that each pay can hold up to 700kg of payload.
Just some of my thought. What do you guys think? š
I believe there has been info that the bays will also be able to accomondate heavy antiship missiles (1,500 kg?). That’s well over 700 kg, not to mention long range AAMs of the R-37 class, so I don’t think weight is a real problem.
Also, I doubt whether 4 R-77s can fit inside these bays and be able to launch safely, I would think that’s only possible for three in assymetric layout, such on the MiG-31’s belly for R-37s. As for foldable wings, I believe R-77s already have foldable wings on the back. Also you should consider the place that will probably be taken by the arms of some hydraulic mechanism that will open the doors, that should make a few extra milimeters to bare in mind on your calculations.
Finally, the more I look the wing pods, the more I doubt they are meant to house missiles. But that remains to be seen.
8 AAM for the PAK-FA would be pretty disappointing considering two weapons bays.
I think 8 AAMs would be more than enough, that means 16 R-77s for each pair. Not an easy problem to solve for any opposing adversary.
Anyhow, I don’t see how more than 8 AAMs could possibly fit inside those bays. If they can actually manage to fit 8 (personally I doubt that), then they should be more than happy.
DELETE
(Found it, the movie was “Stealing heaven”)
DELETE
(Found it, the movie was “Stealing heaven”)
Is this the second this week?
If you click the link you ‘ll get your answer :p
Here it is for you:
This is the second crash of an IAF fighter in three days. A MiG-27 had crashed near the Hashimara air base, also in West Bengal, on Tuesday.