Low Altitude Navigation and Targeting Infrared for Night, or LANTIRN, is a system for use on the USAF's premier fighter aircraft -- the
F-15E Strike Eagleand F-16 Fighting Falcon(Block 40/42 C & D models). LANTIRN significantly increases the combat effectiveness of these aircraft, allowing them to fly at low altitudes, at night and under-the-weather to attack ground targets with a variety of precision-guided weapons.
LANTIRN consists of a navigation pod and a targeting pod mounted externally beneath the aircraft.
The AN/AAQ-13 navigation pod provides high-speed penetration and precision attack on tactical targets at night and in adverse weather. The navigation pod also contains a terrain-following radar and a fixed infrared sensor, which provides a visual cue and input to the aircraft's flight control system, enabling it to maintain a pre-selected altitude above the terrain and avoid obstacles. This sensor displays an infrared image of the terrain in front of the aircraft, to the pilot, on a
Head-Up Display. The navigation pod enables the pilot to fly along the general contour of the terrain at high speed, using mountains, valleys and the cover of darkness to avoid detection. The pod was the USAF's first wide-field, forward-looking infrared navigation system for air-superiority fighters.
The AN/AAQ-14 targeting pod contains a high-resolution, forward-looking infrared sensor (which displays an infrared image of the target to the pilot), a laser designator/rangefinder for precise delivery of laser-guided munitions, a missile boresight correlator for automatic lock-on of the
AGM-65 Maverickimaging infrared missiles, and software for automatic target tracking. These features simplify the functions of target detection, recognition and attack and permit pilots of single-seat fighters to attack targets with precision-guided weapons on a single pass.
The research and development program began in September 1980 with
Martin MariettaCorp. (now Lockheed Martin, Inc.), Orlando, FL, as contractor. Initial operational test and evaluation of the LANTIRN navigation pod was successfully completed in December 1984. The Air Force approved low-rate initial production of the navigation pod in March 1985 and full-rate production in November 1986. The first production pod was delivered to the Air Force March 31, 1987. LANTIRN represented a major advance in the U.S. military's ability to carry out operations in darkness and adverse weather.
LANTIRN With The F-14 Tomcat
Until the early 1990s, the
F-14Tomcat didn't have clearance to drop bombs even though all Tomcats were built with a Stores Management System (SMS) that included air-to-ground options as well as rudimentary software in the AWG-9. Early flight clearance work to clear the aircraft for air-to-ground was cancelled when the Marines pulled out of the Tomcat program. At the time, the Tomcat was so expensive (and lacked proper DECM and RHAW for overland operations) that the Navy did not want to risk it in the air-to-ground role. However, the TARPS mission had proven the Tomcat was survivable overland and upgrades to the Tomcat's DECM, expendables and RHAW gear were developed to increase its survivability. With the end of the Cold War and deemphasis on the Fleet Air Defense mission, NAVAIRhad renewed flight clearance work before Desert Storm so the F-14 could carry gravity bombsas well as laser guided bombsif the target was lased by another jet (first Tomcat LGB drop in combat was made by VF-41in 1995 during operations over Bosnia with an A-6 Intruderproviding the requisite target illumination. Meanwhile, the decision had been made by OPNAV to retire the A-6 altogether and allow the F-14 Block 1 Strike variant to take over as the precision strike platform for the air wing. However, the $1.6B Block 1 Strike program was cancelled in budgetary cuts by 1994 with only enough funding to integrate the JDAM, which was years away. In late 1994, an unsolicited proposal from Martin Mariettawas initiated to demonstrate how a USAF LANTIRN targeting pod could be rapidly integrated onto the Tomcat. This effort was done under the auspices of COMNAVAIRLANT using a fleet aircraft to integrate the digital 1553 based pod on an analog F-14B. In March 1995 a VF-103fleet aircraft successfully dropped the first laser guided training rounds (LGTR) and quickly laser guided bombs (LGB). The results were stunning as the F-14 crew obtained better infra-red imagery and bomb accuracy then the USAF F-15E and F-16C. Due to the unqualified success and interest from Fleet Commanders, NAVAIR began to procure pods and control units for deployment resulting in VF-103 receiving the first LANTIRN pod June 14, 1996in time for its upcoming deployment.
The basic LANTIRN was modified into LANTIRN Targeting System (LTS), the navigation pod was removed from the two-pod system and the targeting pod was vastly improved for Tomcat use. The LTS featured a
Global Positioning Systemand inertial measurement unit that provided the pod line-of-sight cueing and weapon release ballistics and eliminated the need for external cumbersome and time consuming boresight equipment. The RIO had a much larger display in his cockpit than the one available to USAF Weapon Systems Officers, which led to better magnification and target recognition.
Unlike the USAF version, the LTS performed all weapon release calculations and presented release cues that it had generated to the aircrew. The LTS also had a masking avoidance curve display (preventing firing the laser at the jet) and eventually a north orientation curve and 40,000 feet capable laser. The latter became very useful allowing F-14s to employ LGBs above potential threat systems and it came into its own in the higher terrain in
Afghanistanduring Operation Enduring Freedom.
The LTS could also generate coordinates for any target located on the FLIR, and a latter software modification, known as T3 (Tomcat Tactical Targeting) increased the accuracy of the coordinates produced by the LTS and allowed generated coordinates for GPS/INS guided weapons (
JDAM, JSOWand CBU-103 WCMD). The first combat use of this was in OEF when an F-14 generated coordinates for a B-52that dropped CBU-103 WCMD (Wind-Corrected Munitions Dispenser), which is basically an INS-guided cluster bombfrom over 40,000 feet. These weapons scored hits on a vehicle convoy that had stopped after the first vehicle was destroyed by the Tomcat with LGBs.
The pod also featured an internal computer with ballistics data for the various precision munitions carried by the F-14. Data is fed to the pod by the Tomcat’s
AWG-9(F-14A and F-14B) and AN/APG-71(F-14D) radar, but the LTS in turn only sends video and guidance symbology to the crew's cockpit displays. This mean that few wiring and software changes had to be made to the Tomcat in order for it to operate the LTS. All pod controls are in the RIO’s cockpit but the bomb release button is situated with the pilot. The LTS had a price tag of around 3 million US Dollars each and due to these high costs, only 75 were bought for fleet use. Typically, an F-14 squadron brought 6 to 8 pods with them on deployment, which would be permanently fitted to the non-TARPS jets.
The first combat use of the LTS was in December 1998 during
Operation Desert Foxby VF-32.
:Primary function: Low altitude navigation and targeting infrared for night flying:Contractor: Lockheed Martin, Inc.:Length: Navigation pod, 78.2 in (1.99 m); targeting pod, 98.5 in (2.51 m):Diameter: Navigation pod, 12 in (305 mm); targeting pod, 15 in (380 mm):Weight: Navigation pod, 451.1 lb (204.6 kg); targeting pod, 530 lb (240.7 kg):Aircraft: F-15E, F-16C/D, F-14A/B/D:Sensors: Infrared and terrain following radar sensors are on the navigation pod. Infrared and laser designator and ranging sensors are on the targeting pod:Introduction Date: March 1987:Unit Cost: Navigation pod, $1.38 million; targeting pod, $6.7 million
Lockheed Martin Sniper XR
"This article contains information that originally came from a U.S. Government website, in the public domain. [http://www.af.mil/factsheets/factsheet.asp?fsID=111 USAF Website] "
*Tony Holmes (2005). "US Navy F-14 Tomcat Units of Operation Iraqi Freedom", Osprey Publishing Limited.
*Erik Hildebrandt (2006). "Anytime, Baby! Hail and Farewell to the US Navy F-14 Tomcat", Cleared Hot Media, Inc.
* [http://www.f-16.net/f-16_armament_article2.html AN/AAQ-13 & AN/AAQ-14 LANTIRN@F-16.net]
* [http://www.janes.com/defence/news/idr/idr060907_1_n.shtml Targeting: in the hands of the pods] International Defence Review, 7 September 2006
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