![]() |
|
|||||||
|
Greetings, and welcome to the World Affairs Board! The World Affairs Board is one of the premier forums for the discussion of the pressing geopolitical issues of our time. Topics include foreign & defense policy, international security, military developments, weapons proliferation, terrorism, international strategic affairs, and politics. Our membership includes many from military, defense industry, and government backgrounds with expert knowledge on a wide range of topics. Registration is fast, simple and absolutely free so why not register a World Affairs Board account and join our community today? |
![]() |
|
|
LinkBack | Thread Tools | Display Modes |
|
|
#31 (permalink) | |
|
Banished
|
Quote:
And Adux i am in no way stating that i am smarter than people on here, my god i am 17 years old. I am stating that i do however know A LOT about Radar's and avionics. That is what i am going to school for atm, to design this stuff for are military. So, hope this clears stuff up people that i was rude to/went off accept my apology. And if you have anymore questions ask and i will try my best to answer. |
|
|
|
|
|
|
#32 (permalink) | |
|
Banished
|
Quote:
Last edited by Rossiman : 11-12-2007 at 15:33 PM. |
|
|
|
|
|
|
#33 (permalink) | |
|
Banished
|
Quote:
Thank you. So then how do American planes overcome this? By keeping their radars on stand by so that they only detect incoming radar waves but send none themselves? And if so what stops the Flankers from doing the same? |
|
|
|
|
|
|
#34 (permalink) |
|
Military Professional
|
That's an option. If we're in an area where air-to-air combat is expected, there's probably an AWACS in the area getting a good look at everything anyway, so the fighters will know what they're up against even if they're not radiating.
What stops the Flankers from doing this is that there aren't many A-50 Mainstays, and frankly its not a very good platform. Ground-based radars are far more limited by terrain and line-of-sight issues than an airborne platform. |
|
|
|
|
|
#37 (permalink) | ||||||||
|
Senior Contributor
|
Quote:
Amraam ,Mica , R77 as is other active missiles use 3 types of guidance sequentially.This is how it happens as far as I know it and as it is given in all sorts of aviation books,journals and internet sites I have read. First the radar detects the target.It needs some sweeps of the target to build up a good picture and make a track file.Newer radars need lesser scans, have better resolution and can scan more volume and faster than older generation slotted arrays to make a good track file fast.Now when you want to deploy an active missile , you dont need to "lock on" but is sufficient even if you are just tracking the target.1st the ARH will fly out on inertial guidance based on the last location obtained by the radar.After some time the missiles datalink port is activated[time bound feature, can be preset,can also be active even while on inertial course].And the missile's direction is radio corrected..again based on the data povided by the radar.Only when the missile is within 10-15 kms of the target the active seeker will fire up and from there on the missile is autonomous or truely fire and forget. Now AA10[R,RE] is not an active radar missile.But its an semiactive one.It cannot be fired when the radar is in TWS but the radar must be in a lock on mode the entire time the missile is in flight.So the entire time the flight of the R27 depends on the radar.Once the lock is gone during the flight , the missile is effectively "lost".So AA-10 has to use a radar at all stages. I say again that in all cases the radar with better resolution[which is dependent on power but not necessarily raw power]will be able to detect track and send the missiles on their way faster than opposing lower powered radars. The RF guidance you are saying about the Amraam is the seeker.Before the seeker is activated, still it has to have radar guidance for its first two phases of flight.Provided that launch doesnt take place too near the target aircraft,and since you said "Given the range of the AIM-120, US radars are optimized for detection quickly without unnecessarily giving away too much counter target information." that gives me some idea about Amraam engagement range. Quote:
Quote:
Quote:
1.you are getting target information from another buddy by data linking 2.Or you are launching it from close enough range so that the seeker goes active right from the start 3.Maybe getting the data from AWACS feed[R-77 ,Mica havent got this feature,AIm-120 A,B havent, not so sure about Aim-120 C] Quote:
Quote:
Quote:
Quote:
![]() |
||||||||
|
|
|
|
|
#40 (permalink) | |
|
Banished
|
Quote:
|
|
|
|
|
|
|
#42 (permalink) | |
|
Senior Contributor
|
Quote:
Unprovoked personal attack.So much for treating others with respect and trying to discuss seriously!And I will stop posting as soon as any moderator tells me that he thinks I am wasting bandwidth. And in the meantime ![]() Last edited by MarquezRazor : 11-13-2007 at 11:50 AM. |
|
|
|
|
|
|
#43 (permalink) |
|
Contributor
|
The latest Russian fighters do have a data link of some kind, so I would guess its possible given they have another fighter or AWACS to pass them targeting data.
On totally passive radar (no other data being passed) I have no idea, but I hope someone here does... |
|
|
|
|
|
#44 (permalink) |
|
Banished
|
Here's something I found. It sounds fairly interesting, and doesn't mention any passive radar missiles.
''3.8.2. Air-to-air Missiles Vympel Corporation has designed an extensive range of air-to-air missiles for new Russian fighters. It includes close-range missile R-73 (AA-11 Archer), intermediate-range missile R-27 (AA-10 Alamo), new active radar homing missile R-77 (AA-12 Adder) and long-range missile intended to counter bomber targets R-33 (AA-9 Amos). Both the R-73 and R-27 missiles have been exported, and for example Iraq had them at their disposal in the Gulf War (6). The task to design a maneuverable infrared missile for dogfight situations was originally given to design bureau Molniya. Later the bureau was given the task to develop spaceship Buran, and the R-73 Izdieliye 62 came to be Vympel's responsibility. The R&D was completed in 1985 and the R-73 is now Russia's primary close-range missile. The maneuverability has been improved by both aerodynamic means and thrust vectoring. It can be locked on target with help of a helmet sight. The R-73M homing head has a 45 degree angle of opening, which in the advanced version R-73M2 has been increased to 60 degrees. Also the rocket engine has been enlarged for longer range of operation and tolerance to infrared diversion has been improved (47). The R-27 Izdieliye 470 entered production phase in 1986 and is now Russia's primary intermediate-range missile in air-to-air missile category. The first service versions of the missile were semi-active radar homing missile R-27R (Alamo-B) and infrared missile R-27T (Alamo-A). Both versions use inertial guidance with data link commands from the launching aircraft in the first phase of the flight. The third version, R-27P (Pasivnaya), is equipped with a passive homing head. It can be used against targets transmitting radar emissions, such as AWACS planes. The developed version R-27E (Energitisheskaya) is fitted with a more powerful rocket engine, which lengthens the missile by about 17 percent. The semi-active radar homing missile and infrared missile are R-27ER (Alamo-C) and R-27ET (Alamo-D), respectively. In 1992 Russia announced that it has two new air-to-air missile versions. The R-27EA is equipped with an active radar homing head and the R-27EM is semi-active radar homing missile designed specifically for the Su-35 fighter (47). The RVV-AE Izdieliye 170 R-77 first came into public in 1992. Its initial flight is based on inertial guidance and the final flight on active radar homing. The cruciform fins act as aerodynamic control surfaces. The maximum curve velocity is reported to be 150 degrees a second. The missile is currently being introduced to service use on the Su-27M, MiG-29M and MiG-31M aircraft. As far as is known, at least two new versions are in research stage. One features an IR seeker and the other a more powerful engine. The latter is expected to reach 160-kilometer operation ranges at high altitudes. It may also feature passive radar homing head (47). The R-33 (AA-9 Amos) missile was developed specifically for the MiG-31. The guidance is semi-active in the initial stage and semi-active radar homing in the final stage. The missile is meant to counter targets with limited agility. The maximum range is 120 kilometers. In the advanced MiG-31M version the plan is to replace the R-33 with the R-37 missile, in which the semi-active homing head has been replaced with active radar. However, the future of the MiG-31M program is quite uncertain, and the same may apply to the R-37 missile (48,6). Novator Group has presented a plan concerning anti-AWACS missile KS-172/R-72(?). Its range would be 400 kilometers. The project is in its initial stages and there is no information about financing or possible buyers (6). The Russians have also brought up an idea about a missile that could be launched backwards. It is based on the R-73 (AA-11 Archer) missile. The new missile weighs 5 kilos more and is 30 cm longer than the original R-73. It is still IR seeking and operates on two wavelengths. The angle of view is a 60-degree cone. The range is from one kilometer to 10 - 12 kilometers. The unfavorable launch velocity situation has an effect on the range. Tactically this missile is primarily a self-protection weapon for attack aircraft, bombers and intelligence aircraft, since in fighter combat the risk to hit own planes is very high (49).'' Russian Air Force 3.8 |
|
|
|
|
|
#45 (permalink) | |
|
Banished
|
Quote:
|
|
|
|
|
![]() |
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Is the SU-30MKI the worlds best fighter? | platinum786 | Military Aviation | 207 | 07-10-2008 09:24 AM |
| SU 30MKI Vs Rafale | uss | Military Aviation | 41 | 10-17-2007 19:35 PM |
| SU 30MKI Vs Rafale | uss | Military Aviation | 29 | 08-03-2005 00:18 AM |