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Defense against UAV's
wrote: The Raven wrote: wrote in message ups.com... Regardless of the accuracy of this particular account, it is true that UAVs pose a new problem for navies and armies, especially in the smaller versions. Smaller versions typically have no or little combat capability. Great survellaince platforms etc but not big enough for any serious work. Make it big enough to do offensive stuff and it's just as detectable as any other aircraft. There are useful offensive things that even small aircraft can do - like damaging radars. A small uav capable of delivering (slowly) 200kg of payload is much less detectable then your normal fighter. Although it might be easier to detect/respond to then an antiship missile, it might also be orders of magnitude cheaper - and therefore employed in swarm attacks. Defensive systems are generally designed to detect and destroy much bigger and more obvious targets, and even if they manage to spot a small UAV, what would be used to shoot it down? The current crop of UAVs are still heavily dependant on comms and few have any serious autonomous combat capability. How long is that going to last? The rest of the world is not dumb, and India/China have enough good & cheap programmers and scientists... Hence, jamming is the most likely defense. Jam the comms the UAV goes into autonomous mode. Now you hava a relatively dumb target to attack. Relatively dumb might still be too smart. Especially if it is in daylight and in good weather - sea is mostly empty and image recognition is making a lot of progress. This is the subject of much debate at the moment. Ordinary homing missiles may not be able to lock-on to a stealthy little UAV (and even if they could, there's not much logic in using a very expensive missile to shoot down a very cheap plane). The smaller UAVs have limited offensive weapons, if any. Those UAVs that do are much larger, not overly cheaper than a manned fighter/bomber, and just as easy to detect (particularly if you can detect all the comms traffic). You think USA style super-duper all-weather fail proof UAVs. A radar-directed gun system like Phalanx might also not lock-on to such a target. The idea is to take them out long before your last line of defense. Taking them out early means missiles and/or aircraft. Both will have problems locking on low signature slow flying targets. And both can be overwhelmed/depleted by swarm attacks.. Both of these UAVs seem to be on the small side and not capable of much more than the proported 25 minute flight over an aircraft carrier. The speed and time indicates a 100 kilometer flight. http://www.globalsecurity.org/milita...ran/ababil.htm Ababil is equipped with shahid noroozi guidance and control system designed and manufactured in Iran.It is composed of two aerial and ground section. The aircraft control is provided with an autopilot system that transfers flight information data to the ground station via a datalink system . The system is able to launch the aircraft ,perform different maneuvers, fly to30 km range, loiter and simulate air attacks and finally recover the aircraft at a given point. The range will be increased up to 120 Km simply by increasing the output power of the communication system. wing span 325 cm wing area 1.76m² Length overall 288 cm Max. launching weight 83 kg Max. payload weight 40 kg Cruise speed 165 Knots For longer than 5 km range a tracking system is essential. Endurance is 1.5 h (Can be increased) http://www.globalsecurity.org/milita...an/mohajer.htm Mohajer (UAV) Iran's UAV program was launched in the wake of the 1980-88 war with Iraq. Iran has also been investing in several families of attack and multirole UAV. Over the years, Iranian officials have reported the deployment of target drones and such UAVs as the Mohajer-3 [also called Hodhod-"a hooded bird") and the Mohajer-4. The Mohajer 4 underwent a test flight on 16 February 2002. The Saeqeh UAV was tested at the same time. Minister of Defense and Armed Forces Logistics, Ali Shamkhani, said that Iran is one of the few countries to have the knowledge for designing and building UAVs, state radio reported. Country of Origin Iran Builder Qods Aviation Industries Length Wingspan 3 meters Weight, Empty Weight, Maximum 85 kilograms Engine Maximum speed 200 kmh Cruising speed Ceiling 11,000 feet Surveillance radius 50 kilometers Endurance 90 minutes Launch Pneumatic or jet-assisted Recovery By Parachute Armament/Payload Video and infrared cameras providing 1-meter resolution from altitudes up to 5,000 feet User Countries/Groups Hizbollah |
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