Originally posted by tys:

they will make this into a movie

Ya, it'd be like Wu jian dao in espanyol.

Originally posted by robertteh:

I mean other than the plain citizens putting out their views on the net, as they see fit there is increasingly a group of forumers with vested interest to use standard or stereotyped propagandas of the type purveyed in the the controlled mainstream media to counter or bend any objective critical or even creative and productive views.

If one is true master or true leader will he not be merrier to see such productive though critical views as they could help them in nation building to bring goodness and fairness to all.

Forumers with critical views as all could no doubt see for themselves are being targeted by such counter-insurgency agents who even call such active citizens all sorts of names using vulgarities with arrogance. Although these agents may be kept anonymous as stated by ministers who sent them but they are nevertheless connected to and sent by ministers.

True leaders should learn how to serve humbly and leave well alone and encourage positive unwarped development for creativity and innovations to grow.

After years of social engineering look at the result today. Are the results better harvest for all ordinary citizens?

This is so bullsh!t.

Just because others here disagree with some of the opposition's extreme views, you accuse them of being government "plants."

This is not democracy you're demonstrating here.  Its populism!

Guess where populism is spreading like wild fire?  BS places like Venezuela! 

You can imagine the effect this operation would have on the top echelon of FARC leadership.  Its gonna throw them into a disarray of distrust for quite some time.

Its quite safe to say that the hind could not have been flying at tactical airspeed or the LGB would have no chance of hitting it. The hind could have been holding station to provide close air support fire for its troops when it was picked up by the Mudhen. . Maybe the WSO decided to hit  it with an LGB in order not to alert it to its presence.  The hind not being a very sophisticated chopper would probably not have a laser  warning system installed.  Rudimentory RWRs would be available, hence the Mudhen's fire control radar would have tripped it.

Originally posted by bloodsucker:

It wasnt the pilot who shot down the heli. It was his WSO. There were quite a few Hinds at that time dropping troops. When one of it landed to drop its troops, his wso took it out just after it took off. Taking it down while it is flying with a lgb would be nearly impossible otherwise.

Oh yeah... its the WSO that guides the A2G weapons in the Mud Hen...

Yeah, agreed.  The helo would be moving too fast normally.  Well, if not an LGB, a Maverick can take down a non-manuevering helo...  Heh!

Heh! Sounds familiar...

Yeah, laser guided bomb on a helicopter.  I'd like to try that one day. =D

Originally posted by Sepecat:

The numbers don’t tell you everything. It still took skill, experience & determination on the part of the US pilots in Gulf War 1 to knock out Iraqi MIGs and Mirages out of the sky even though most were running away from the fight.

The MIG 29s were good, but without good & agressive piloting, poor SA and almost non existent GCI on the Iraqi side. Basically, they ran & did not try to fight.

The F15 record for 101 to 0 kills are for the F15C version.
Are there any kills from F15 Ds or Es ?
In all cases, the F15s had overwelming air superiority with AWACs and electronic warefare aircraft vectoring them to their targets. Had US pilots used MIG 29s instead of F15s in this same situation, what do you think the outcome will be ?

An F-15E "Shot down" a helicopter with a laser guided bomb once.  The pilot must have been having a fun time with that one.

Another shot down an Mi-24 in Afghanistan... heh.

Originally posted by 38Ž:

A picture is worthy 1000 words. See a time-speed relation of a typical dog fight AAM:

 

 

Any maneuvering projectile with controlling surface will be identical to the AAM, although the curve shape will be somewhat different but won’t be different in magnitude.

 

From the curve, the missile reaches its max speed around 2.3-2.4 second when its propellant burnt out. However, it loses speed sharply when it’s in supersonic region, for a mere 4-5 second it has dropped back into subsonic region and hardly has any sheer speed to catch near sound speed cruise-missile. 

 

Which speaks out a dart round only lose some 6% speed from the initial speed of Mach 3 over 4-5kms is aerodynamic impossible.

 

Actually this curve is also a good explanation why a high off boresight AAM + HMS is not what a “what you can see is what you can shoot” kind of myth.

 

 

 

 

 

You think people don't know this when they shoot missiles? 

Every weapon out there has an "envelope." This envelope is the minimum and maximum distance the missile can hit depending on target's aspect. (ie. Which way its moving in relation to you, eg towards you, away from you, or perpendicular)  For simplicity's sake, lets called this Rmin1, and Rmax1.

Now thats simply the amount of "energy" the missile has available to travel, regardless of speed.

Within this main envelope, lies a secondary and more important envelope.  Its called the NO-ESCAPE-ZONE (NEZ).  This is the distance envelope which when the missile is launched, it will SURELY hit its target as it has sufficient "energy."  Lets called this Rmin2, Rmax2. 

Obviously, a target manuevering under 500kts in the above diagram would be in the Rmin2 , Rmax2 if within the first 2.3 sec when the motor is still burning.  Somewhere after that point, depending on the target's manuevering aspect, would be in Rmin1 and Rmax1.

In a dogfight or any AAM shoot out, while it makes sense to shoot within the NEZ, we have to be aware that we would also be within the opponents NEZ, so we tend to shoot in the WEZ instead at higher speeds or altitude.

BUT, when engaging a supersonic missile, nothing its gonna shoot back at us, so, I'd definitely shoot within my NEZ.  As you can see, air-to-air interception and surface to air interception are indeed 2 very different ball games.

The Sidewinder is a pretty high-drag missile that tops out somewhere under mach 1.8.  Its control surfaces are optimized for manueverability and cause a lot of induced drag. 

If the graphs for the AMRAAM-Cs aren't classified, you'd see a different picture.  The initial deceleration after the motor burn out won't be as steep.  But as it nears the transonic region, you will see a steeper deceleration before it graduals out again as it clears the transonic region.

The Sidewinder is in no way physically similar to the Strales Dart given its higher drag designed thats more intended for manueverability. 

Originally posted by duotiga83:

do you knw that till nw F-22 does not have Link 16 inside?

My wifi is faster thank Link16, by 54 times!

F-22 is using technology beyond that already lar.

Another thing is security. The F-22 another more secure system called the Intra-Flight Data-Link (IFDL). As a "Stealth" fighter, it can sometimes be operating in areas the enemy do not expect it to be. Conventional datalink such as the Link16 can be detected / intercepted by enemy SIGINT. Sad to say, the F-22 / F-35 cannot share its wealth of info with other F-16 or F-15 using conventional means. But there are the ways to move information around.

Besides, I think the link-16 might not be able to support the sheer amount of data that can be generated.

200 rounds a min, thats about 3+ round per sec.   With "Beehive" type of rounds, I think it can handle any AShm pretty well.

Yeah, let them have their fantasy.  Yes yes, Su-27s rule the skies.

I wonder where the Syrian ones went when the Israeli Air Force F-16s and F-15s attacked that Yongbyon clone back in April 2008? 

Or the time when USAF F-117s supposedly dropped a Tactical Nuke on another Syrian nuke facility in early September 2007?

Su-27s rule the skies... yeah of course they do.

Originally posted by SingaporeTyrannosaur:

lionnosy means by crashing our UAVs into them.

If you recall, he advocated the idea of crashing a very expensive FANTAIL UAV into targets like machine gun nests as well as using it's 400 gram puny payload to carry a single cluster munition, which he assumes is an efficent way of taking out MBTs.

But given he advocates the use of 40mm grenade launchers at extreme range as an anti-armour defence option... I am not too surprised.

If I want a kamikaze UCAV.... I'd build a missile. =D

Originally posted by 38Ž:

The statement of a mach 3 unpowered projectile near sea level only lost 6% of its initial speed over 5kms really showcase you have no clue about aerodynamics yet want to talk like expert.

Air drag coefficient Cx considered almost constant when the projectile flies at low speed ( generally below 250m/s), and increases near exponentially along with the increase of speed which is near or over speed of the sound.

http://www.answers.com/topic/sonic-barrier?cat=technology

Sharp rise in aerodynamic drag that occurs as an aircraft approaches the speed of s 

When the projectile’s speed is in the supersonic region. Because of the sharp rise in Cx, the projectile approaching sound speed will have to break sound barrier. Actually any unpowered supersonic projectile lost speed exponentially faster during its flight in sound. At sea level the speed of sound is about 750supersonic region than it does in low speed region. Remember, it lost speed exponentially, 6% is not a exponential result considering the dart round already flied 5kms. 

  

Obviously your lack of knowledge leads to your totally incompetent to talk something you really don’t understand.

 

So it’s totally unsurprised you don’t understand what I have quoted from OTO’s website: “the DART projectiles have correctly entered and followed the guidance beam manoeuvring with the required and expected accuracy beyond a range of 5 Km.”

 

Why it’s so difficult to achieve a Dart round to just entering the guidance beam in just 5+kms distance? Because the Dart round has already lost most of its speed during supersonic flight ( from m3 inital speed to sub-sonic), and when it's in sub-sonic, the sharp drop in air drag still allows it fly much longer, that’s why it still can achieve a 38kms range, but the sharp drop in speed doesn’t allow the round to have enough kinematic to perform manoeuvring that required to keep the round in the beam.

 

 

 

38, I think you're only giving half the story.

Sharp rise in aerodynamic drag that occurs as an aircraft approaches the speed of sound.

 What you are talking about, I believe is called transonic drag. It is the drag that increases exponentially in the transonic region. That is why it is hard for aircraft with a CAT 3 load to break the sound barrier.

http://history.nasa.gov/SP-367/f86.htm

 If you look at this graph, you will notice that the drag coefficient drops off after it passes the transonic region. It is only within this transonic region, will you have such a steep rise in drag coefficient.

So therefore, your statement:

Actually any unpowered supersonic projectile lost speed exponentially faster during its flight in supersonic region than it does in low speed region.

... is largely inaccurate. An object will encounter exponential slowdown ONLY WITHIN THE TRANSONIC region as shown in the graph above. That means staying out of Mach 0.95 and Mach 1.05.

If there is an exponential increase of drag throughout the supersonic region, aircraft will not be able to super-cruise because they will constantly require MORE POWER to maintain supersonic flight. Don't you think so?

So it seems to me, that you have misunderstood certain parts of the concept of Supersonic flight, with regards to a flying object's drag coefficient.

How many people do you see here speaking up for them? Is posting not a form of freedom of speech?

I don’t know. People could have been talking about how to get the govt to do more to help the poor, but they prefer to curse LKY instead.

What is freedom of speech when its not used for something worthy? Just the ability to make noise…

Everytime an MP stands up parliament, opposition or not, he could ask, “can we discuss about poverty today? How about the next session?” No one can file a defamation suit against that!

Whats the point of all of us having the “freedom of speech” when there are people out there who DON’T have it because they are poor?

I think we missed something here.

You ask an Iraqi who used to live under the tyranny of Saddam, he’ll probably like the freedom in Singapore better.

You ask a North Korean who lived under KJI, he’ll probably say, he loves his great leader, because thats all he learnt to say.

You ask an American who lived in the land of the free and the brave, he’ll tell you Singapore is illiberal.

All is a matter of perspective. Democracy in its purest form, is idealistic. Just like Communism, idealistic.

Every ideal needs a reality check. What makes it work, what kills it. Look at the politics of Asian countries that went the way of liberal democracy. The drama of the Taiwanese parliament. The fractious South Korea. Every democracy has its own set of problem. Its how you make the best of it.

I can appreciate what we have in Singapore. The stability we’ve traded some of our liberties for makes us an attractive place for foreign investors. My only gripe is that many of the poor and old are neglected.

Freedom of speech? What is that when you are an 85 year old man, forced to cut up paper and cardboard boxes for a few measly dollars. A time when you should be at home resting, you are out in the streets, working for your next meal.

Freedom of speech? What is that?

Sometimes i wonder, what LKY did to you guys to turn u guys into such hateful people?

I’ve yet to see a UCAV that can carry a HARPOON or a TASM. How to kill ships?

When the formidable’s gundam mode fails to come online…

eh… oops, i said too much already.

shhhhh not public domain.

Wah... so chim, proportional guidance...  WOOT!

I just call it, "Lead-Pursuit."  Or rather, in the case of missiles, "pure pursuit."  The missile will calculate sufficient lead to bring it on a collision course with the target.

If you guys really appreciate the mathematics, dydx behind it, please follow this link.

http://books.google.com.sg/books?id=NVEtqShrgvkC&pg=PA182&lpg=PA182&dq

I believe i saw it Singapore Polytechnic's Central Library once.

I don't appreciate the maths of it.  I prefer to shoot the missile and consider the rest of it "voodoo." I don't have to calculate the dydx to know that the bright speck out there missile with my name painted on it.  If its bearing is constant and doesn't change significantly, you WILL KNOW the missile is coming at you. 

AShM's can be a little tricky though.  Sometimes when the target is well within the missile's max range, and if the missile supports it ( eg later blocks of Harpoons), the missile can be set to fly multiple waypoints to confuse tracking radars.  With a good number of these slimy bastards coming in, it can screw up target prioritization.

Of course, a good system like the AEGIS would probably just blow everything else up.

All aircraft can point their nose away from the flight path.

In normal aircraft, once the airspeed has decreased too much, and the angle of attack (angle diff between nose and flight path) is too big, conventional flight control surfaces no longer respond well. 

Typically, aircraft handling will feel more sluggish, and if not corrected, will result in total loss of control to the aircraft.  For the F-16, it has a tendency to stall with its nose bobbing up and down.

Thrust vectoring comes in when conventional flight control surfaces fail, and extends the limit of flight control greatly at post-stall conditions.  Eg, typically below 120kts the F-16 would be very very sluggish and unmanueverable, but with thrust vectoring, or MATV in its case, I'd still be able to pitch and roll.

*Casts Shield*

Gains Cover bonus and caster is immune against magic missiles.

What the fascination with the G-Numbers? 

Those missiles lose smash when making huge turns. The lesser smash a missile has, the easier it is to intercept...

As kotay explained, even an AMRAAM will be hard pressed to kill anything if it has to make a high-g turn at terminal phase.  It loses so much energy that it can no longer get into a decent range for proximity sensor to kill.

Picture please. =D