


| QUOTE (israeli @ Oct 12 2005, 08:39 PM) |
| http://home.att.net/~jbaugher1/f15_27.html F-15K for South Korea The government of South Korea is under constant pressure from possible agressive moves from its neighbor to the north, and worries about a possible invasion. In addition, the government of South Korea feels itself endangered by the acquisition by the People's Republic of China by the highly-capable Su-30MKK long range interceptor, and it is concerned that there might even be friction with Japan over the Dok To islands, which have significant petroleum reserves. In response to these pressures, in 1997 the government of South Korea announced a competition for a long-range strike fighter, which they called the F-X. The strike fighter would have to be extremely capable, and the succeeding entry would have to offer a considerable level of technology transfer to Korean industries. A Request for Information (RFI) was issued in late 1997, calling for a long-range strike fighter capable of carring a 15,000 pound weapons load and also capable of handling 9G loads. Contenders were the Dassault Rafale, Eurofighter Typhoon, Sukhoi SU-35, and a Korean adaptation of the Boeing Strike Eagle, designated F-15K. The ROKAF issued a Request for Proposal (RFP) to these four manufacturers, which added a requirement for an up-to-date infrared search and track system. In early 2002, the Korean government announced that the competition had been narrowed down to the Dassault Rafale Mk 2 and the F-15K. It had been reported that the RoKAF favored the Rafale because of its better maneuverability and latest generation of avionics, although the US was pushing very hard for the F-15K. On April 19, 2002, it was announced that the government of South Korea had decided to choose the F-15K, and ordered 40 examples. Dassault immediately filed a court injunction in Seoul, disputing the selection process, which it claimed to be biased in favor of US interests. The Korean defense ministry responded that the selection was made on the basis of the F-15K's multirole capability, payload, combat radius, performance, and the proven combat capability of the F-15E upon which the F-15K was based. The General Electric F110-GE-129 turbofan was selected as the powerplant for the F-15K. This makes the F-15K the only variant of the Eagle to use this engine operationally, although the General Electric engine was installed on a trial basis in a USAF F-15E in 1999. It is rated at 29,500 lb.s.t. with afterburning. It should give the F-15K a significantly better performance than other Strike Eagle variants. Samsung Aerospace will build this powerplant as part of the offset package. The F-15K is the most sophisticated of the export Strike Eagles, and is in many respects superior even to the USAF versions of the Strike Eagle. It includes a lot of systems that were omitted from the other export models, and includes some systems that are not even available on the USAF F-15E. In addition, there are certain systems provided which are unique to South Korea's needs. The F-15K is to carry the extremely capable Raytheon (formerly Hughes) APG-63(V)I radar, which is provided with additional sea surface search and ground moving target indicator modes. The US Department of Defense has also allowed the RoKAF to receive the APG-63(V)2 Active Electronically-Scanned Array radar, which could provide the F-15K with increased detection ranges, faster detection, and the ability to engage up to 8 targets simultaneously. The cockpit display is compatible with the Joint Helmet Mounted Cueing System, which contains a magnetic head tracker with a display projected onto the pilot's visor, providing a means by which sensors and weapons can be aimed by the pilot simply looking at them. Additional chaff and flare dispensers are carried, and the cockpit lighting compatible with night-vision goggles. An advanced display core processor replaces the central computer and multi-purpose display. The weapons hardpoints are wired with the MIL-STD 1760 databus, which makes it possible for the F-15K to carry and deliver GPS-guided weapons. Since the F-15K is expected to have a significant antiship role in the event of war with North Korea, the F-15K is integrated with the AGM-84D Harpoon and the AGM-84E Stand-Off Land Attack Missile. The F-15K is also expected to have a significant air-to-air capability and will also be capable of carrying and firing the AIM-120C AMRAAM beyond visible range air-to-air missile, as well as the new AIM-9X latest-generation Sidewinder missile. The F-15K will be able to carry the under-intake AN/AAQ-13 and AN/AAQ-14 tracking pods. The AN/AAQ-13 will provide infrared tracing and manual terrain following down to altitudes as low as 100 feet, and can generate FLIR video images on the pilot's heads-up display. It is not sure if the terrain-following mode will be provided. The AN/AAQ-14 target trackin gand laser ranging pod will feature a FLIR sensor andmay have a missile boresight correlator to allow automatic handoff of targets. It features several air-to-air modes. An advanced electronic countermeasures suite is provided, the most sophisticated of that carried by any FMS Strike Eagles. These include an improved microwave power module-equipped ALQ-135M ICMS. The ALR-36M radar warning receiver will be provided as an alternative to the troubled ALR-56C. The US Department of Defense has permitted South Korea to receive LANTIRN pods, with FLIR capability and terrain-following radar, and a FLIR laser targeting pod, plus a long range infrared search and track capability. Deliveries are scheduled to begin in 2005, with the last of the 40 aircraft to be delivered in 2008. ------------ * seems to me that the F-15Ks are more powerful than the Israeli F-15Is and even those USAF F-15Es. :dunno: |


| QUOTE (israeli @ Oct 14 2005, 12:49 PM) |
| caterpillar: what made you say that the F-15T will be "the most powerful" variant of the F-15E ever made? :armyeek: .. |





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| Maj. Craig Vincent walks with a group of South Korean pilots he trained in South Korea. Vincent spent nine months here instructing the South Korean Air Force on their recently acquired F-15K. |

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| Before returning to the States, Maj. Craig Vincent is thrown into the air by some of the South Korean pilots who he instructed. The nine-month training program, centering around the F-15K, concluded last week. |
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By Peter Spiegel, Los Angeles Times Staff Writer November 6, 2007 WASHINGTON -- The Air Force has grounded its entire fleet of F-15s, the service's premier fighter aircraft, after one of the planes disintegrated over eastern Missouri during a training mission, raising the possibility of a fatal flaw in the aging fighters' fuselage that could keep it out of the skies for months. Gen. T. Michael "Buzz" Moseley, the Air Force chief of staff, ordered the grounding Saturday after initial reports indicated that the Missouri Air National Guard fighter plane had broken apart Friday in midair during a simulated dogfight. The pilot ejected and survived. Although the 688 F-15s in the Air Force's arsenal are gradually being replaced by a new generation of aircraft -- the F-22 -- they remain the nation's most sophisticated front-line fighters. U.S. officials said that the F-15s are heavily used for protecting the continental U.S. from terrorist attacks, as well as for combat missions in Iraq and Afghanistan. Lt. Gen. Gary L. North, the Air Force officer in charge of military aircraft in the Middle East, said in a statement Monday that he would be able to fill the gap with other fighters and bombers in his arsenal. But another Air Force official said the F-15 grounding would have a "significant impact" on operations in Iraq and Afghanistan. "They will clearly have to work hard to pick up the slack," the official said. The health of the F-15 fleet has long been a concern for Air Force brass, who repeatedly have warned that the two-engine fighter has exceeded its expected life span and is straining under the workload imposed by the counter-terrorism duty. In addition, Moseley has repeatedly raised concerns that the plane is inadequate for increasingly sophisticated air defense systems being developed by potential adversaries like China and Iran. "The F-15s . . . they're very capable airplanes," Moseley told a congressional hearing last month. "But against the new-generation threat systems, they don't have the advantage that we had when they were designed in the late 1960s and built in the 1970s." In May, another Missouri Air National Guard F-15 crashed in southern Indiana during a similar training exercise. That pilot survived as well. The F-15 that crashed Friday was 27 years old. Of the five different versions of the F-15 currently used by the Air Force, four versions average between 24 and 30 years of age. The F-15E, the newest version, is only 15 1/2 years old, but it has been grounded along with the other versions because it has a similar airframe. Air Force leaders have frequently cited the age and obsolescence of the F-15 as the main reason to buy the new, more stealthy F-22, the most expensive fighter ever made. Critics of the F-22, which was first designed to fight a generation of Soviet MiGs that never materialized, have argued it is an overpriced Cold War relic, but the Air Force says it has adapted the plane to meet more modern threats and missions. Lt. Gen. David Deptula, a former F-15 pilot who is now the Air Force head of intelligence, said that his son now flies the exact same F-15 aircraft that Deptula flew while based in Japan in the late 1970s. "They have become serious maintenance challenges as they get older, and now I'd suggest that we may be facing a crisis," Deptula said. "We must recapitalize our aging fighter forces -- and fast." Loren Thompson, a military analyst with the Lexington Institute who has consulted for aircraft manufacturers, said the accident was probably caused by metal fatigue, corrosion or faulty maintenance. If maintenance problems turn out to be the culprit, Thompson said, the F-15 fleet could be returned to flight relatively quickly. Similarly, corrosion could be addressed by examining other aircraft for similar problems. If the Missouri crash was the result of metal fatigue, however, it could lead to a much more extended grounding, since it would suggest that time and intense use of the aircraft since the Sept. 11 attacks have finally caught up with the aging fighter. "The whole fleet was already flying on flight restrictions due to metal fatigue," said Thompson, noting that a fleetwide grounding is extremely rare, especially for a fighter. "In this case, the planes that are grounded are supposed to be America's top-of-the-line air-superiority plane," Thompson added. "This is not like grounding some cargo plane. These are the sinews of our global air dominance." Despite fears over the plane's safety, it remained unclear whether all F-15s were on the ground or would stay there. Lt. Col. Edward W. Thomas Jr., an Air Force spokesman, said that over North America, counter-terrorism missions were being taken over by the single-engine F-16 fighter, but that some F-15s would be on standby during the transition period. Similarly, an Air Force official said North, the Air Force commander in the Middle East, would keep some F-15Es on hand in case of an emergency. "They're not going to put their aircraft on the flying schedule, but if they really need the combat capability and you've got troops in harm's way, they're going to launch them," the official said. According to Air Force officials, Moseley and other senior officers were alarmed after it became clear that the accident in Missouri was the result of the plane simply breaking apart during a relatively basic exercise. Capt. Bridget Zorn, a spokeswoman for the Missouri Air National Guard, said the pilot had been released from the hospital with a dislocated shoulder and broken arm. She said investigators were still in the early stages of their inquiry, marking and identifying pieces of wreckage at the site, about 120 miles southwest of St. Louis. |
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| Some F-15s Allowed Back in the Air Stars and Stripes | Bryan Mitchell | November 15, 2007 RAF LAKENHEATH, England -- The Air Force rescinded a grounding order on some of its F-15s Wednesday, sending a fighter jet squadron in Afghanistan back on combat sorties and squadrons in the United Kingdom back onto their training regimen. The F-15Es can return to flight after a one-time 13-hour inspection, according to Air Force spokeswoman Jennifer Bentley. All other models remain grounded. "Some of our planes are flying here," said 455th Air Expeditionary Wing spokesman Capt. Michael Meridith from Bagram Air Base, Afghanistan. The latest grounding was ordered last week after the Nov. 2 crash of an F-15C from the Missouri Air National Guard. The crash was the second involving a Missouri Air National Guard F-15 this year. The pilot was engaged in a dog fighting exercise at speeds of up to 500 mph when the accident occurred. He ejected safely and suffered minor injuries. The order grounded the aging fleet of more than 700 F-15s across the United States and at Lakenheath, where the 48th Fighter Wing is based. The wing has the only contingent of F-15s in U.S. Air Forces Europe. It's unclear if the Air Force determined what caused the crash, but officials have acknowledged the plane suffered structural problems and broke apart in flight. "They can't give us anything partial from the investigation," Bentley said. RAF Lakenheath is home to three F-15 squadrons, which includes approximately 83 F-15s that fly an average of 60 sorties a day. During the grounding, pilots and weapons systems officers at the 48th Fighter Wing focused on studying and preparing for the ongoing NATO Operations evaluation while the maintenance crews attempted to work ahead on scheduled overhauls, RAF Lakenheath officials said last week. The first F-15 rolled off the McDonnell Douglas production line and launched into the skies in 1972. Upgrades and modifications have significantly altered the aircraft. The F-15 is one of the primary aircraft used by the Air Force in Afghanistan to provide close-air support to coalition troops serving across the Texas-sized nation. The Lakenheath-based 492nd Fighter Squadron recently returned from a four-month tour of Bagram Air Base, in which it engaged in nearly daily combat sorties and employed roughly 1,000 munitions. Saudi Arabia, Japan and Israel also maintain individual fleets of F-15s. The move to lift the order ended the longest grounding for the F-15 since 1983, when a defective component found on a fighter jet at Langley Air Force Base, Va., led to a similar long-term grounding, according to the Air Force. The Air Force bought its last F-15 in 2004 and has long-term plans to eventually replace the fighter jet with the F-22, which has yet to be deployed on combat missions. |
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| F-15s Ordered Grounded Once Again Military.com | By Bryant Jordan | November 28, 2007 Barely more than a week after returning the F-15 Eagle fleet to flight the Air Force is once again grounding most of the planes, Military.com has learned. F-15 models A through D -- a total of 442 planes -- were ordered grounded by Air Combat Command,Langley Air Force Base, Va., late on Nov. 27, ACC spokesman Maj. Thomas Crosson said in an interview. The latest problem is with cracks in the planes' metal support beams, called longerons, that run the length of the aircraft, and make up the sill on which the canopy sits, Crosson told Military.com. The entire F-15 fleet was ordered grounded in early November after the break up and crash of a Missouri Air National Guard Eagle. The Air Force began lifting the restrictions on the fleet Nov. 19 - starting with F-15E Strike Eagles - following aggressive inspections of the planes. ACC called for the new groundings after metallurgical analysis of the planes suggested there could be possible cracking problems with the longerons. Officials now are working at Warner Robins Air Force Base, Ga., to develop an inspection list that will be sent out to F-15 maintainers across the Air Force. Crosson said the list should be completed in a day or two, and will include a timeframe for how long the actual inspections should take. He could not say how long it would before the latest restrictions would be lifted from the entire fleet. |
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Northwest Florida Daily News | By Mladen Rudman | December 05, 2007 EGLIN AFB -- On average in the past month, the Air Combat Command issued an order every 9.6 days to stop F-15s from flying until specified airworthiness inspections were completed. The most recent grounding came Tuesday. It's the third one and could end up being the lengthiest. F-15A, B, C and D models are affected. Two-seat fighterbomber versions of the F-15 known as Strike Eagles continue to fly. The 33rd Fighter Wing at Eglin Air Force Base had returned to the sky only a couple of days ago before its dozens of F-15Cs and Ds were grounded again. Its maintainers were well on their way to finishing Eagle inspections as a result of the second stand-down. Although the air-to-air combat Eagles aren't flying, fighter wing spokeswoman Capt. Brooke Brander said there's still plenty for airmen to do. "On the flying side of the house, they're spending time on academics ... as well as flying in simulators," she said. The simulators are networked so Eagle pilots around the country can train against each other. Maintainers, which earlier in the week were described as doing a masterful job in getting F-15s inspected after the second standdown, have routine and periodic maintenance to perform. The other Eglin units that operate F-15s are the 46th Test Wing and 53rd Wing. The trio of Eagle standdowns sprouted after a Missouri Air National Guard F-15 crashed Nov. 2 during training because of a structural failure. The ongoing investigation uncovered Monday "possible fleet-wide airworthiness problems ... related to areas beyond those previously inspected," according to the Air Combat Command. Upper longerons, which help connect the cockpit to the rest of the aircraft, were among the F-15 parts checked previously. Air Combat Command spokeswoman Maj. Kristi Beckman added that the order will last until the crash investigation is completed and inspections and remedial repairs are made. It's unclear how long that would take. The grounded F-15s could be mobilized if there's a national emergency. Beckman noted that Operation Noble Eagle patrols, which protect American airspace, are being handled by F-16s, Navy aircraft and the Canadian air force. |
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| Officials: Pilots rescued after two F-15Cs collide Two Air Force fighter pilots have been rescued after their F-15C jets collided during a training exercise over the Gulf of Mexico Wednesday, according to Air Force officials. Two F-15C fighter jets, like the one pictured, collided over the Gulf of Mexico, the Air Force says. Both pilots are alive, but Eglin Air Force Base spokeswoman Lois Walsh said she was unable to comment about their conditions. The planes were from the 33rd Fighter Wing, a combat-flying unit out of Eglin Air Force Base, near Pensacola, Florida. The crash happened about 3 p.m. about 50 miles south of Tyndall Air Force Base in Panama City, Florida. U.S. Coast Guard Petty Officer James Harless said helicopters, airplanes and ships were deployed from Florida, Alabama and Louisiana to help with the search. Air Force search and rescue and U.S. Coast Guard crews raced to the scene of the collision to pick up the two fliers, who had been on a routine training mission. In January, a top Air Force general said a manufacturing defect blamed for causing a midair breakup of an F-15 Eagle fighter, which occurred in November, might lead the Air Force to permanently ground a quarter of those warplanes. There is no information that points to a manufacturing defect as the cause of Wednesday's incident |
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http://www.af.mil/news/story.asp?id=123087166 2/21/2008 - EGLIN AIR FORCE BASE, Fla. (AFPN) -- An Eglin Air Force Base pilot involved in a Feb. 20 crash of two F-15 Eagles over the Gulf of Mexico has died. The other Eglin AFB F-15 pilot is listed in good condition at the base hospital. At approximately 5 p.m., Coast Guard crews located and rescued the 58th Fighter Squadron pilots after they were reported missing over the Gulf of Mexico at approximately 2 p.m. The names of the two pilots are being withheld pending notification of next of kin. A board of officers will investigate the accident. Additional details will be provided as soon as they become available. "The 33rd Fighter Wing and Team Eglin have suffered a great loss today and my heart goes out to the family and friends of our fallen Airman," said Col. Todd Harmer, the 33rd FW commander. "We will continue to do everything we can to assist our families and Airmen at this tragic time." Comment on this story (comments may be published on Air Force Link) |
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By KURT LOFT and LAURA KINSLER, The Tampa Tribune Published: February 23, 2008 Updated: 12:14 am TAMPA - A Tampa family laid their 26-year-old son to rest Friday, honoring the sacrifice he made for his country. "Our son has died with great honor, and this is not bestowed on anyone," said Mehboob Jivanjee, whose son, Ali Jivanjee, died after a midair collision of two F-15C Eagles. "I'm proud he served his country in the best manner and the way he wanted to." The Pentagon said U.S. Air Force 1st Lt. Jivanjee died from injuries after ejecting from his plane during a routine training exercise over the Gulf of Mexico on Wednesday. A second, unidentified pilot parachuted safely after the two $30 million jets collided. With the help of a fishing vessel, Coast Guard crews found both men after a three-hour search. The pilots were from the 58th Fighter Squadron of the 33rd Fighter Wing at Eglin Air Force Base, and their planes struck each other about 35 miles south of Tyndall Air Force Base in Florida's Panhandle. A safety board investigation is under way. Following Muslim tradition, a funeral service was held Friday at Sunset Memory Gardens in Thonotosassa. Jivanjee leaves behind his wife, Sara. "Our son sacrificed his life for the United States," Mehboob Jivanjee said. "His friends, every one of them from the commander to the sergeants - including their wives - showed me how close they were to my son." Many showed emotion during the graveside ceremony, and expressed their pride and appreciation for the young man's dedication. "We love America," said his father, whose family moved to Tampa from California three years ago. "I'm proud to be a father and an American. This is our land, and we love America. If I had more sons, I would give them to this country, too." Jivanjee joined the Air Force in 2004 after graduating with a degree in electrical engineering from the University of California at Los Angeles. He was commissioned as an officer through the ROTC program. "Since the age of 12, Ali has wanted to fly F-15 fighter jets and serve our country," said his brother, Ibrahim, "and he accomplished this goal in the most honorable ways." At Eglin, Jivanjee began flying the 32,000-pound F-15C tactical fighter, which can reach an altitude of 65,000 feet and hit speeds up to 1,875 mph. Many of the 522 fighters have been used extensively in the Middle East. The Air Force plans to phase out the F-15C for the new Lockheed Martin F-22. Eglin officials say the base suspended flights for the weekend, but training exercises will resume Monday. |

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RAF exchange pilot joins US Afghan operation 27 Feb 08 An RAF fast jet pilot has traded his Tornado GR4 aircraft for an F15 after taking up an exchange appointment with the United States Air Force (USAF). RAF Lossiemouth's Flight Lieutenant Chris Ball is now deployed in southern Afghanistan as the US military target Taliban strongholds in the mountainous region along the Afghan/Pakistan border. Working alongside pilots from 336 Fighter Squadron F15, Flt Lt Ball is flying night operations out of the former Soviet airbase at Bagram, north of Kabul, helping to police the notorious border with Pakistan. The former RAF Lossiemouth XV ® Squadron pilot and his US navigator Mark Crawford were recently called in to provide air support to troops located at Forward Operating Bases in the Hindu Kush, the mountainous border region more than 20,000 feet (6,096 metres) above sea level. The operation was part of the USAF's ongoing efforts to flush out Taliban insurgents believed to be centred in the inaccessible border region. Flt Lt Ball is part of an established RAF/USAF exchange programme, but it is unusual for UK fliers to join live operations: "We were supporting ground troops in Paktika and Nuristan," Flt Lt Ball explained. "The rugged terrain is difficult with mountain peaks reaching 22,500 ft (6,858 metres) above sea level. It's tough for the guys on the ground - during the day the temperatures can hit the high forties, but at night they plummet to minus 20. "We are there to support them. The USAF has two planes in the air over the region twenty-four seven. If anything happens on the ground we are there fast. The F15 is awesome, I love the GR4 but this beast is about 50 per cent bigger and armed to the teeth. It is a truly phenomenal plane." |
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Seoul Picks F-15K for New Jet Deal (Source: Korea Herald; issued April 26, 2008) South Korea selected Boeing Co.'s F-15K fighter jet for a 2.3 trillion won ($2.3 billion) project to purchase 20 new advanced jet fighters, the military procurement agency announced [April 25]. The selection was approved during the 27th defense project promotion committee presided over by Defense Minister Lee Sang-hee, the Defense Acquisition Program Administration said. The South Korean Air Force has sought to purchase 20 multi-role fighter jets between 2010 and 2012 to reinforce airstrike capabilities. The multibillion-dollar fighter deal, dubbed the 2nd F-X, follows South Korea's first phase of F-X in 2002, in which the Air Force will introduce 40 F-15Ks by this year. Under the deal, the South Korean military will acquire 21 aircraft, one more than the original target number of 20 for the procurement, DAPA said. Boeing agreed to provide one additional F-15K for free. "As a result of negotiations with Boeing, we will introduce 21 units within the originally earmarked budget of 2.3 trillion won," DAPA said. Boeing was the sole bidder for the 2nd F-X project. DAPA said U.S. aircraft engine maker Pratt & Whitney will provide engines for the new F-15Ks. It plans to procure 44 units of the F100 model. The F-15K is an advanced derivative of the F-15E, capable of long-range precision strike missions without escort. It has a 23,000-pound payload and can fly at a maximum speed of Mach 2.3, with a combat radius of 1,800 kilometers. A single aircraft costs $100 million. The new fleet of F-15Ks will become crucial national defense assets as the military prepares to assume wartime operational control of its armed forces by April 17, 2012, DAPA said. It will beef up precision strike capabilities of the Air Force, replacing its aging fleet of F-4s and F-5s, the agency said. DAPA said it also decided to purchase high-tech air-to-surface guided missiles that will be used by F-15Ks, from overseas weapon makers. The Air Force seeks to procure AGM-158 JASSM-class missiles between 2010 and 2011. JASSM is an acronym meaning Joint Air-to-Surface Standoff Missile, a cruise missile developed in the United States, whose operational range is over 370 kilometers. Its accuracy is known have error probability of only 2.4 meters. JASSM is also seen as a crucial asset to cope with North Korea's nuclear threat. The Air Force said it plans to begin the third phase of F-X program in 2011 to purchase fifth-generation fighter jets equivalent to the F-22 and the F-35. Under the plan, 60 units featuring radar-evading stealth functions will be introduced between 2014 and 2019, it said. -ends- The South Korean government today approved the purchase of 21 additional Boeing F-15K Strike Eagles and of air-launched stand-off missiles like the JASSM. (Boeing photo) |
| QUOTE (MSantor @ Apr 26 2008, 01:55 AM) | ||
Alright, the USAF is having problems with its own fleet of F15s and the South Koreans opt to buy more?? :armyeek:
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| QUOTE (flipzi @ Apr 26 2008, 04:11 PM) |
| ROKAF remains the deadliest air force in Asia. :armycheers: |
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| Boeing unveiled the prototype of a new variant of the F-15 Strike Eagle aimed at the Asian and Middle East markets that will incorporate stealthy coatings and structure here on Mar. 17. Company officials hope the new aircraft will garner up to 190 orders, extending the F-15 line beyond the current backlog of 38 aircraft for South Korea and Singapore. Since the company lost the Joint Strike Fighter contest to Lockheed Martin, the future of its St. Louis manufacturing facility has been uncertain. Continued F-15 sales, as well as additional orders for F/A-18E/Fs and EA-18Gs, are the only work in the foreseeable future for the plant. Major design changes in the new "Silent Eagle" version include internal bays within the existing conformal fuel tanks that can carry a variety of air-to-air and air-to-ground weapons. Each tank will be configured to hold two air-to-air missiles, including the AIM-9 and AIM-120 or a combination of the two.For the air-to-ground mission, 1,000- and 500-pound Joint Direct Attack Munitions can be carried or four 250-pound Small Diameter Bombs per tank. Weapons loadout can also be split between the AIM-120 and JDAM for a multirole mission.The Silent Eagle configuration includes 15-degree outward-canted V-tails - a shift away from the characteristic vertical fins of the F-15 that reduces the radar cross-section. The Mach 2.5 speed of the Strike Eagle is maintained, but the cost is about 180-200 nautical miles of range capability because of the reduce fuel in the conformal tanks, says Brad Jones, program manger for F-15 future programs. The new design includes a digital electronic warfare system (DEWS), made by BAE Systems, that can operate simultaneously with the aircraft's Raytheon active electronically scanned array radar. Stealth coatings, though not yet applied to Boeing's prototype, could be added at a later time. Boeing says the coatings could contibute to an equivalent amount of front-aspect stealth as that offered by Lockheed's F-35. This includes reducing radar returns from sharp edges on the aircraft, including antennae. Stealthiness for the F-15 was explored about a decade ago for the U.S. Air Force as an alternative to the Lockheed-led F-22, but was never pursued. "The internal carriage is what is new. The stealth is not," Jones says, adding "We are not really after the F-22 market or the F-35 market" with this new design. The level of stealthiness exportable on the F-15 is up to the U.S. government to decide, Jones says. Though USAF officials have been given courtesy briefings on the Silent Eagle, talks on stealth exportability have not yet occurred. A radar blocker for engine inlets, already fitted in F/A-18E/Fs, could be added depending on how much radar cross-section reduction is required by the customer and allowed by the government. Jones estimates the cost of a Silent Eagle will be about $100 million per aircraft, including spares, if built new. A retrofit kit including the conformal fuel tanks, DEWS and coatings could be added to existing Strike Eagles, he says. The target market includes South Korea, Singapore, Japan, Israel and Saudi Arabia, Jones says. The first likely customer is South Korea, which is looking for two new fighters, including its F-X Phase III program, which calls for 60 aircraft in the F-15 class. South Korea's Agency for Defense Development is also pushing for a KFX program, which calls for about 120 domestically developed stealth fighters. Jones says coproduction of stealth materials would be subject to U.S. government review and a tough case to sell. Japan and Saudi Arabia are also looking for new F-15-class fighters. And if the Silent Eagle were sold to the Saudis, Israel likely would want a chance to buy the aircraft too to maintain balance of power in the Middle East. Boeing's willingness to integrate indigenous systems, such as electronic warfare suites, onto the Silent Eagle is an option that could be of interest to these customers - especially Israel. Israeli industry was recently rebuffed by U.S. officials unwilling to add foreign EW systems under the F-35 development program. The weapons-carrying fuel tanks, which are affixed to the aircraft with two bolts, and can be removed within about 2.5 hours. Reinstalling the original fuel tanks restores the F-15 to its nonstealthy configuration, which is capable of hauling more and larger weapons, including anti-ship missiles. The Silent Eagle prototype is based on F-15E1, the program's flight test aircraft. To date, it has been outfitted with the conformal tanks and the canted tails, which are for demonstration only and not structurally integrated. The actual canted tails would be added later if a customer requested them. Stealth coatings and engine intake blockers have not been added. Jones says Boeing hopes to begin flight testing the weapons-carrying conformal tanks on the aircraft in the first quarter of next year. Design work on the Silent Eagle concept began in September last year in response to feedback from F--15 customers, he says. |
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Israeli Plans to Buy F-35s Hitting Obstacles 20-Apr-2009 13:48 EDT April 19/09: The Jerusalem Post reports that Israel’s Air Force is reviewing Boeing’s new F-15 Silent Eagle (F-15SE, see March 17/09), as a potential alternative to Lockheed Martin’s F-35A, if export permission for a downgraded F-22 model is still refused. While the F-35’s high cost remains an issue for the Israelis, expected delivery delays to 2014 and the inability to install Israeli-made systems appear to be bigger stumbling blocks. In contrast, the F-15SE would be available by 2011; like an F-22EX model, some additional development will be required to finalize the design. The F-15SE offers considerably more range and payload than the F-35, for less than the F-22 would cost; possibly for less than early-model F-35s would cost. Electronics and equipment flexibility would be similar to the other F-15s Israel flies, and the potential option of upgrading Israel’s 25 F-15I Strike Eagles to a similar standard offers an additional consideration. On the flip side, the resulting aircraft would offer significantly less stealth than the F-22, and less than the F-35A as well. This would make precision strike attacks against advanced air defense systems more difficult. It would also lack the suite of integrated, embedded multi-spectral sensors, which reach their modern apotheosis on the F-35A. April 17/09: Ha’aretz reports that Israel’s F-35 negotiations are still bogged down, with cost – and more so, technology transfer and control – as the key issues. |