Air Combat Maneuvering Thread

Engineer

Major
yes i am sure that the MiG-31 that reaches 2.8 Mach but accelerates very slow has no relation to the engine, same the Me-262, that could be hunted at take offs and landings but was almost 200km faster than piston engine p-51s was not related to the engine.

Yes of course the F-119 is not a newer engine than F-100
More fallacy. Thrust-to-weight ratio has already taken engine into account. An aircraft with more thrust-to-weight ratio is more powerful, but when said aircraft still has lower performance, then it shows raw power is not the only determining factor.
 

TerraN_EmpirE

Tyrant King
In world war 2 the main weapons of Fighters were Guns. There were primitive Rocket systems but really it did not move to missiles until the 1950's Fighters. Simple bombs were around but small and nothing compared to today's payloads. All the attack bombers of the era carried internally because of Drag.

A loaded F22 weighs a lot more than a loaded Eurofighter which makes a major issue for your argument. It's like comparing a Classic American Hot rod to a Tricked out Japanese Tuner. The Rod is pumped up and all about muscle and steel well the Tuner is carbon fiber and tuned engines with Nitro.
there general performance specs are not going to match no matter the argument.
 

b787

Captain
In world war 2 the main weapons of Fighters were Guns. There were primitive Rocket systems but really it did not move to missiles until the 1950's Fighters. Simple bombs were around but small and nothing compared to today's payloads. All the attack bombers of the era carried internally because of Drag.

A loaded F22 weighs a lot more than a loaded Eurofighter which makes a major issue for your argument. It's like comparing a Classic American Hot rod to a Tricked out Japanese Tuner. The Rod is pumped up and all about muscle and steel well the Tuner is carbon fiber and tuned engines with Nitro.
there general performance specs are not going to match no matter the argument.
since the Me-262 there were air to air missiles, in fact from F-100 to Eurofighter there was not many fighter using internal weapons bays why?

answer is very easy any gain you get in drag by internal weapons bay you lose them by size increase because you add the weapons to the internal volume this increases weight and weight affects the strength of the internal structure.

The best example was F-111B which carried two AIM-54 Phoenix in weapons bays and F-14, the F-14 was smaller and a dogfighter, the F-111 ended as a strike aircraft.


So most aircraft used external weapons stations on fighters and internal weapons bays on strikers and strategic aircraft.

Stealth brought them back thanks to HMS and highly off bored missiles and thrust vectoring, but the F-14 examplifies why semi-recessed weapons stations were much more useful.

But of course stealth brings an advantage at BVR F-22 surpasses any Eurocanard but at WVR the F-22 needs thrust vectoring and the F-35 HMS, but of course fans of stealth aircraft do not see that
 

Scratch

Captain
With this going so fast, I would just like to throw in that a "skinny" airframe, carriying streamlined objects, e.g. pylons, missiles & bombs (after all, carrying ordenance into combat is the point of a combat aircraft) in the end still has a greater drag issue than a larger crossection / volume object that can, however, be designed to be one major streamlined object. The combination of form-, friction- & interference drag does take it's toll.
 

Jeff Head

General
Registered Member
It was a sarcastic joke.
Okay...but in such discussions, you might want to add a "/sacarsm," tag so people can be sure.

internal weapons bays have advantages under some circunstances, they are good for stealth i do not deny they increase LO, but they come with an increase of internal volume and increase size that negates the fact the aircraft has a clean wing in example F-22.
This makes zero sense.

On one hand you say internal bays decrease drag and helps with stealth...which is true...but then on the other you say that the additional internal volume negates that advantage.

Of curse...it does not. The stealth advantage is still present.

Aircraft without the internal bay and the stealth features, still have to carry the weapons...and their volume...except now it is on the outside and therefore increases their drag, and increases their observability.

It also causes them to pay a price in maneuverability.

In fact, an otherwise excellent maneuvering airframe is the one whose maneuverability is hurt by the weapons he must carry externally.

Internal weapons were mostly used on large aircraft since WWII and some aircraft like the Avenger and the Judy, the reason is the B-29 for example was huge so it needed a clean wing for range and the engines were on the wings, so the internal weapons bays were okay
You keep pointing to bombers and large attack aircraft. Why is this issue even being raise on this thread? This is an Air Combat Maneuverability thread and it for fighters and strike fighters.

The fact is the F-22 is the best air superiority fighter on the planet. Why? Because of its 5th generation capabilities that are coupled with an excellent airframe.

it is an unbelievably good blend of those features.

Whether you or others like it or not, the F-35 is also going to be an excellent blend.

The F-22's blend was optimized for air superiority.

The F-35s blend I optimized for strike.

But both of them are going to do very well in opposing other aircraft because they have the blend, and that blend is coupled with their 5th generation features. Together, they will allow them to dominate other opposing 4th and 4,.5 generation aircraft.

Does that mean they will win every time? No, of course not.

Does that meant hey are invincible? No, of course not.

But it does meant hat the combinations of features are being recognized by Air Force professionals and analysts the world over as a VERY desirable thing.

That is why China is building their own 5th generation aircraft. It is why Russia is doing the same. It is why Japan has embarked on a similar program, and the South Koreans want to too. It is also why so many western allied nations are buying the F-35...including Japan and South Korea.

The people making these decisions know what they are doing...whether the Chinese, the Russians, the US or its allies.

Anyhow, not all of those features lend themselves to the absolute optimum dog fighter. But they have enough of that capability, when coupled with those other features to ensure that unless they are up against similar 5th generation capabilities...or some blend of them...they will persevere.

The French recognize this and though the Rafale is nt considered a 5th gen fighter, they have tried to include some of those features in their aircraft which allows it to be (at least IMHO) one of the premier 4.5" gen aircraft.

I would say that the Advanced Super Hornet (for the F/A-18E/F), the F-15 2040C (for the F-15C) and F-15 SA (for the F-15E) are programs that do the same thing with those designs.[/QUOTE]
 

TerraN_EmpirE

Tyrant King
Me 262 has Air to Air missiles? Apples And Watermelons!
The R4M carried by the ME 262 were Unguided Rockets and are much much smaller, Lighter and more streamlined in mounting then modern long range Air to air missiles. The Closest modern equivalent would be the 2.75 inch Rockets fired by Antitank helicopters ( and even then the modern ones are double the size).
Small Diameter and even there mounting on the aircraft differs being either podded or stacked.
A 8 pound rocket is minute drag compared to a 188 pound Sidewinder. Oh and for the record systems like them were internally carried See the Lockheed F94 Starfire. And those type of Rockets were slowly added until they became the 2.75 inch rockets of today.
Once the Sidewinder and falcon Air to Air missiles showed up then you had large missiles which were more awkward to load internally and feeding data to them was more difficult well dropping a dumb bomb needed no open air the IR or Radar seekers of AIr to Air missiles needed open sky to seek their prey. as these moved forward the need to allow the seekers to seek demanded external carriage of weapons. that's why so many had external weapons. Now we have data links and can stream data back and forth and lock on after firing.
 
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Engineer

Major
since the Me-262 there were air to air missiles, in fact from F-100 to Eurofighter there was not many fighter using internal weapons bays why?

answer is very easy any gain you get in drag by internal weapons bay you lose them by size increase because you add the weapons to the internal volume this increases weight and weight affects the strength of the internal structure.

The best example was F-111B which carried two AIM-54 Phoenix in weapons bays and F-14, the F-14 was smaller and a dogfighter, the F-111 ended as a strike aircraft.

So most aircraft used external weapons stations on fighters and internal weapons bays on strikers and strategic aircraft.
Not true. Adding internal weapon bay is not a zero sum game. Your own examples of strikers and strategic bombers are not stealthy, yet they all carry weapons internally rather than using hard points. Why? External stores are way more draggy.

External stores also adds to total aircraft weight, and requires structure to be strengthened. This isn't some penalties that only exist on stealth airframe. However, externally mounted weapons are further from the aircraft's center-of-gravity, so the aircraft loses maneuverability. So on top of being draggy, external stores decrease an aircraft's maneuverability.

Stealth brought them back thanks to HMS and highly off bored missiles and thrust vectoring, but the F-14 examplifies why semi-recessed weapons stations were much more useful.
No, they aren't. Although drag is reduced somewhat, each semi-recessed hard point still left half a missile sticking out, which makes for an unclean aircraft exterior and is still draggy. The benefit is no where close to a true internal weapon bay. Furthermore, only one specific type of weapon can be carried in each recessed station, which severely limits flexibility.

But of course stealth brings an advantage at BVR F-22 surpasses any Eurocanard but at WVR the F-22 needs thrust vectoring and the F-35 HMS, but of course fans of stealth aircraft do not see that
If thrust-vectoring helps, F-22 wouldn't have lost to Eurofighter or any other fighter for that matter. In fact, F-22 is better off without thrust-vectoring, because using thrust-vectoring is usually how F-22 lose in simulated engagements.
 
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Engineer

Major
The whole notion about internal weapon bay creating bigger frontal area thus more drag is a whole load of b.s. Here is a picture of F-15 taken head-on:
IAw98DJ.jpg


Here is a photo of F-22 from similar view:
s6CLPy1.jpg


Where is the "extra frontal area" on the F-22 that isn't on the F-15? No where. The frontal projected area of the weapon bays overlaps with some projected area of radar and air intakes. Therefore, internal weapon bay does not equate to a larger frontal profile.
 
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b787

Captain
Okay...but in such discussions, you might want to add a "/sacarsm," tag so people can be sure.

This makes zero sense.

On one hand you say internal bays decrease drag and helps with stealth...which is true...but then on the other you say that the additional internal volume negates that advantage.

Of curse...it does not. The stealth advantage is still present.

Aircraft without the internal bay and the stealth features, still have to carry the weapons...and their volume...except now it is on the outside and therefore increases their drag, and increases their observability.

It also causes them to pay a price in maneuverability.

In fact, an otherwise excellent maneuvering airframe is the one whose maneuverability is hurt by the weapons he must carry externally.

You keep pointing to bombers and large attack aircraft. Why is this issue even being raise on this thread? This is an Air Combat Maneuverability thread and it for fighters and strike fighters.

The fact is the F-22 is the best air superiority fighter on the planet. Why? Because of its 5th generation capabilities that are coupled with an excellent airframe.

it is an unbelievably good blend of those features.

Whether you or others like it or not, the F-35 is also going to be an excellent blend.

The F-22's blend was optimized for air superiority.

The F-35s blend I optimized for strike.

But both of them are going to do very well in opposing other aircraft because they have the blend, and that blend is coupled with their 5th generation features. Together, they will allow them to dominate other opposing 4th and 4,.5 generation aircraft.

Does that mean they will win every time? No, of course not.

Does that meant hey are invincible? No, of course not.

But it does meant hat the combinations of features are being recognized by Air Force professionals and analysts the world over as a VERY desirable thing.

That is why China is building their own 5th generation aircraft. It is why Russia is doing the same. It is why Japan has embarked on a similar program, and the South Koreans want to too. It is also why so many western allied nations are buying the F-35...including Japan and South Korea.

The people making these decisions know what they are doing...whether the Chinese, the Russians, the US or its allies.

Anyhow, not all of those features lend themselves to the absolute optimum dog fighter. But they have enough of that capability, when coupled with those other features to ensure that unless they are up against similar 5th generation capabilities...or some blend of them...they will persevere.

The French recognize this and though the Rafale is nt considered a 5th gen fighter, they have tried to include some of those features in their aircraft which allows it to be (at least IMHO) one of the premier 4.5" gen aircraft.

I would say that the Advanced Super Hornet (for the F/A-18E/F), the F-15 2040C (for the F-15C) and F-15 SA (for the F-15E) are programs that do the same thing with those designs.
i will tell you why you do not get it, you do not want i will explain you why it negates the advantages.

F-15 and F-22, simple example the F-15 is lighter at empty weight, tell me why? do you want the answer? the weapons bays yes my friend they add weight. Another example F-111B and F-14 why the F-111B that carried two AIM-54 internally was heavier and larger at empty weight?
Answer again, the internal weapons bays, tell me why?
answer when you do not carry weapons bays, that space that the weapons bay create internally is gone, so its weigh its gone, its structure is gone.
Do you get it? now one more time, if you add size to your fuselage you add weight, example F-106 versus Mirage III, MIrage III was a 15 meters long, F-106 was 21 meters and much much heavier, at empty weight, tell me why? yes if you get it it had an internal weapons bay.

If you are heavier the force your aircraft experiments as structure at 7Gs is higher, if you are longer the structure becomes weaker then your aircraft suffers more problems internally to withstand high Gs.

Example F-111B, became a strike aircraft, F-14 a fighter, however F-14 is much much heavier than F-15 do you know why? yes of course it has a swing wing structure.

If you have a larger plane you have more air resistance, example F-16 versus F-35, the F-16 does not carry side weapons bays thus it has a smaller frontal cross section, the F-16 then has a smaller wetted area.

Why tell me if all aircraft designers since WWI could carry things internally why they decided to put things outside? answer they wanted to create smaller aircraft, smaller aircraft are lighter, lighter aircraft use less powerful engines, their structure is proportionally stronger, easier to make, cheaper .

Since 1944 there were air to air weapons Germany had them, the R4M, since the early 1950s you got lighter AIM-9s and the Russians AA-1 Alkali, they were carried outside the airplane tell me why? answer first is the guidance problem, second the space problem if you carry all internally you make larger planes.


Why then since WWI only larger aircraft had weapons bays, answer engine position, in WWII all the aircraft using weapons bays were attack aircraft like B-29, Me-410, B-17 these were twin or four engine aircraft using the wings as th place they fit the engines so putting weapons internally made sense engines already created drag, fuselages were big, weapons bays made sense.

same is the jet era; in WWII, the Avenger for example was fatter than the hellcat or P-51 so avenger was not a fighter not even like the p-38 or Me-110 but Avenger had a weapons bay

What is advantage of weapons bay? stealth yes that is the advantage, why if the wing does not carry weapons fighters did not use weapons bays since WWI and only few examples had them ?answer size, weight and drag larger aircraft have more air resistance drag.


The F-14 became what the F-111B never was a dogfighter, F-14 could tangle with MiG-23, F-111 never was used as a fighter..

Then why F-22 being heavier is good aircraft answer? Thrust vectoring.
Why then Eurofighter and Rafale have beaten F-22? answer F-22 has no helmet mounted sight neither AIM-9X.

So when Rafale flies against the F-22, the RAPTOR has to fly on wings and engine alone it can not cue the AIM-9Ls via a helmet mounted sight.
Rafale has no thrust vectoring but can dogfight against the Raptor on equal conditions, because Rafale is a pure aerodynamics design with very little yield to stealth

And yes internal weapons bays are good for stealth but not good for drag
 
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b787

Captain
The whole notion about internal weapon bay creating bigger frontal area thus more drag is a whole load of b.s. Here is a picture of F-15 taken head-on:


Where is the "extra frontal area" on the F-22 that isn't on the F-15? No where. The frontal projected area of the weapon bays overlaps with some projected area of radar and air intakes. Therefore, internal weapon bay does not equate to a larger frontal profile.
0Hgarzp.jpg


F-22`s Empty weight 43,340
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(19,700 kg)

F-15`s Empty weight 28,000
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(12,700 kg)
 
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