UAV challenges
Friday, March 28, 2008
Ali Abbas Rizvi
The Pakistan Army recently tested an unmanned aerial vehicle (UAV) called Uqaab. The presence of Chief of the Army Staff General Ashfaq Parvez Kayani on the occasion shows how seriously the Pakistani military is taking the UAV concept in the modern day battlefield. While no specifications for the new UAV were issued, the high-profile presence of senior army officers on the occasion and the publicity that followed it made it clear that the new UAV was apparently a breakthrough over what the country had earlier produced in this field. "The flight data collected indicates that all design parameters have been successfully validated," a statement issued on the occasion said, adding: "The performance of the UAV Uqaab can be compared to any of modern state-of-the-art UAV in its category. The successful flight test is a reflection of Pakistan's technical prowess in the field of UAV technology."
There are several companies in Pakistan that are involved in UAV production.
One Pakistani firm, Integrated Dynamics of Pakistan, has made a unique hand-launched mini-rocket UAV, called Firefly. It is a high-speed, short-range observation system that can fly for eight seconds and costs around $3,000. Another UAV made by the same firm is called Desert Hawk, which has an endurance of two hours.
Recent reports have revealed that Pakistan is also acquiring two types of UAV from Europe. These are a German EMT LUNA short-range battlefield reconnaissance, surveillance and target acquisition UAV and Italian Galileo Avionica's Falco tactical unmanned aerial vehicle (TUAV). On the other hand, Turkey and Pakistan are also working on UAVs. In this regard, a letter of intent was signed between the TAI and the Air Weapons Complex (AWC) in 2007, under which the TAI would provide electromagnetic interference and electromagnetic compatibility tests of a flight control system and communication interface units for UAVs.
There is little doubt that UAVs are becoming increasingly important day by day. The US is the leader in UAV technology, followed by Israel and the European countries. However, the gap between the Americans and other nations in the technology is enormous and could not be met any time soon. While UAVs that can fly for up to 60 hours have been developed, the Americans are working on a UAV that would be maintenance-free and have an endurance of up to five years, giving them an unlimited advantage in terms of reconnaissance. At the moment, however, one of the most advanced UAVs is the 12,110kg Northrop Grumman's Global Hawk that has a range of more than 22,000 kilometres. The Predator is yet another UAV that is being extensively used for combat and reconnaissance missions on the Pak-Afghan border and in Iraq. One report recently revealed that the US has 163 UAV programmes in operation, compared to 50 by France, 31 by Israel and 25 by Pakistan.
Nevertheless, the journey to produce high-quality unmanned air vehicles is not going to be easy for Pakistan as it involves several daunting challenges.
First, it is essential that UAVs should have a very high operational reliability for the mission for which they are developed. One area in this respect is a good engine, which probably is the most difficult aspect in the designing of a UAV. Designers have to make sure that the engine can support the airframe, does not quit when it is most needed and does not give the UAV away. The engines should have low vibration and, therefore, a low signature.
It should be able to support long-endurance missions over the target.
Another area of operational reliability for a UAV comes from its airframe, which should be able to support the mission in all types of conditions, especially rough weather.
A different but a mammoth challenge comes in the shape of a UAV's capability for precision-flying in terms of altitude and flight path so as not to compromise the mission. This, however, is not an easy task. The designers would have to make sure that the UAV can fly over the target for long durations and in adverse weather during day and night. An additional area would be the mating of the equipment on board, especially high-resolution cameras, the sensors.
As it is, UAVs are being developed for both military and civilian use. For example, UAVs are being used in dangerous situations like flying over active volcanoes, near hurricanes and tornadoes, regions of high radioactivity, over the poles and deserts, for fire-fighting, observation of civil disturbances and natural disasters. The result is that the UAV market is expanding at a fast pace, especially in the military sector, and is expected to reach around $15 billion by 2010. The issue of UAVs, regrettably, has also been used by the Americans to justify their attack on Iraq, duping their lawmakers and the UN. In 2002, US Secretary of State Colin Powell claimed that the Iraqis had transported their advanced UAVs to ships in the Atlantic Ocean to launch biological- and chemical-weapon attacks on the US East Coast. Iraq, meanwhile, did not have any UAVs, only a few outdated training drones. However, in December 2002, in the first-ever, though asymmetrical, dogfight, an Iraqi MiG-25 using a missile downed a US Predator.
While the armed forces have been using UAVs on the border with India, the country also requires UAVs to monitor the movement of unwanted elements on its western borders, especially during the night. Also, UAVs would be greatly helpful in tracking the movement of smugglers and insurgents in Balochistan. On the other hand, the Indians, who have been concentrating on acquiring Israeli UAVs in the face of their not-so-successful indigenous programme, have been using them on the Pakistani borders. In June 2002, Pakistan shot down an Israeli-built Searcher Mark-II, which was on an Indian Air Force mission. It goes without saying that in the present geo-strategic situation, Pakistan needs to have its own fleet of modern unmanned aerial vehicles to which the future of the skies belongs.
The writer is news editor, The News, Karachi. Email: abbasrizvi14@hotmail.com
