- Yes
- No
Music : https://www.youtube.com/watch?v=okxFH8VNtr4
Saab Gripen Royal Thai Air Force
The Gripen is a multi-role fighter aircraft, intended to be a lightweight and agile aerial platform incorporating advanced, highly-adaptable avionics. It has canard control surfaces which contributes a positive lift force at all speeds, while the generous lift from the delta wing compensates for the rear stabilizer producing negative lift at high speeds, increasing induced drag. Being intentionally unstable and employing digital fly-by-wire flight controls to maintain stability removes many flight restrictions, improves maneuverability, and reduces drag. The Gripen also has good short takeoff performance, being able to maintain a high sink rate and strengthened to withstand the stresses of short landings. A pair of air brakes are located on the sides of the rear fuselage; the canards also angle downward to act as air brakes and decrease landing distance. It is capable of flying at a 70-80 degrees angle of attack.
In order to enable the Gripen to have a long service life, projected to be roughly 50 years, the aircraft was designed to have low maintenance requirements; major systems such as the RM12 engine and PS-05/A radar are of a modular type to reduce operating cost and increase reliability. The Gripen was designed to be flexible as it had been anticipated that newly developed sensors, computers, and armaments would need to be integrated as technology advances.
Avionics and sensors
All of the Gripen’s avionics are fully integrated using total of five MIL-STD-1553B digital data buses, described as “sensor fusion”. The total integration of the avionics makes the Gripen a “programmable” aircraft, allowing software updates to be introduced over time to increase performance and allow for additional operational roles and equipment.
Much of the data generated from the onboard sensors and by cockpit activity is digitally recorded throughout the length of an entire mission. This information can be replayed in the cockpit or easily extracted for detailed post-mission analysis using a data transfer unit that can also be used to insert mission data to the aircraft. The Gripen, like the Viggen, was designed to operate as one component of a networked national defence system, which allows for automatic exchange of information in real-time between Gripen aircraft and ground facilities. According to Saab, the Gripen features “the world’s most highly developed data link”. The Gripen’s Ternav tactical navigation system combines information from multiple onboard systems such as the air data computer, radar altimeter, and GPS to continuously calculate the Gripen’s location.
Royal Thai Air Force Net Work Centric
TECHNICAL SPECIFICATIONS
Radar functions
Air-to-Air modes
- Long and medium range look-up and look-down detection
- Low probability of intercept
- Multiple target Track-While Search
- Short range auto acquisition and tracking
- BVRAMRAAM and Meteor missile data link
- Non cooperative target recognition (NCTR)
- ECM immunity
- Passive operation
Air-to-Surface modes
- Mapping. Real beam and high resolution SAR
- Ground Moving Target Indication (GMTI)
- Ground Moving Target Tracking (GMTT)
- Sea surface search and tracking
- Air-to-ground ranging
- ECM immunity
- Weather Mapping mode
Technical data
- General: Pulse Doppler, X band radar, monopulse
- Sub-units: 4 Rack mounted units + antenna unit and waveguide parts
- Weight: 150 kg
- Antenna (ANT): 60 cm, Identification Friend or Foe (IFF) dipoles
- Power Amplifier Unit (PAU). Transmitter: Travelling-Wave Tube (TWT), liquid cooled, peak power >10 kW
- Transmitter AuxilliaryAuxiliary Unit (TAU)
- High-FrequencyExciter Receiver Unit (EXRHFU): Narrowband and wideband receivers, digital pulse compression, state-of-the-art spectral purity and noise figures
- Signal and data processorRadar Processing Unit (RPUSDP): Saab airborne Modular Avionic Computer System (MACS) computer system and parallel COTS based multiprocessor cluster, solid state discs for recording
- Mean Time Between Failure (MTBF): 250 400 hours in airborne operation
Armament
- Guns: 1× 27 mm Mauser BK-27 Revolver cannon with 120 rounds (single-seat models only)
- Hardpoints: 8 (three on each wing and two under fuselage) and provisions to carry combinations of:
- Rockets: 4× rocket pods, 13.5 cm rockets
- Missiles:
- 6× AIM-9 Sidewinder (Rb.74) or IRIS-T (Rb 98)
- 4× AIM-120 AMRAAM (Rb.99) or MICA
- 4× Meteor (under development)
- 4× AGM-65 Maverick (Rb.75)
- 2× KEPD.350
- 2× Rbs.15F anti-ship missile
- Bombs:
- 4× GBU-12 Paveway II laser-guided bomb
- 2× Bk.90 cluster bomb
- 8× Mark 82 bombs
RM12 engine
The RM12 engine was developed by GE Aircraft Engines and Volvo Aero Corporation to power Swedish JAS-39 Gripen fighter. RM12, specially designed for single-engine use has a few different characteristic compared to it’ father F404-GE-400. First of all the fan has been strengthen to sustain a hit of 0.5 kg bird, the airflow was highten by 10% and the turbine was made of modern materials to stand higher temperatures. All of this increased the overall performance by 10-20%. Engine has FADEC with hydromachanical backup and backup ignition system. The RM12 has fast power setting response, unlimited number of power cycles, smooth to-afterburner transition and is very reliable
27mm Mauser high-energy gun
This 27mm cannon is a single barrel, gas-operated lightweight single barrel revolver cannon that fires electrically primed 27×145 mm ammunition at 1 700 rounds per minute.
Developed by Mauser-Werke Oberndorf of Germany, it’s features include low volume, low system weight, high fire power in target (air/air, air/ground), low time of flight projectile and a long stand-off range.
The cannon is relatively lightweight at only around 100 kg including barrel, but with a natural rate of fire of approximately 1700 rounds per minute (instantaneous time to rate), the relatively large shell (260g) and the high muzzle velocity of just over 1 km/s (v0) it packs a punch. The cartridge is ignited electrically and fed to the cylinder through linked belts or, in the case of the Eurofighter, through a linkless conveyor belt ammunition feed system, the first such system for revolver guns. Linkless systems (which are a staple in modern Gatling-type cannons) are less prone to stoppage and the ammunition uses considerably less space.
The different types of ammunition all have the same internal and external ballistic properties allowing for the use of belts with mixed ammunition for greater flexibility.
Ammunition types:
Air-to-air
High explosive
Air-to-ground
Armour piercing
Armour piercing high explosive
All purpose
Semi Armour Piercing High Explosive
Multi-purpose
Practice
Target Practice Target Practice Frangible Projectile
Target Practice Tracer
Used by:
Gripen (fuselage x 1)
IRIS-T air-to-air missile
The IRIS-T, InfraRed Imaging System – Tail/Thrust Vector Controlled, is an International initiative to replace current AIM-9L/M Sidewinder short-range, air-to-air missiles. The missile combines advanced aerodynamics and thrust vector control in a tail controlled airframe to achieve outstanding performance.
It utilizes a solid-propellant rocket motor. IRIS-T features a roll-pitch (128×128) IR seeker with �90� look angle for high off-boresight angle missile engagements. Engagements against targets in the rear hemisphere can be done successfully with the missile locked-on target after launch. IRIS-T outstanding agility is the key to successfully engage highly maneuverable advanced aircraft
Overall, IRIS-T delivers increased agility, target acquisition range, hit accuracy, a more effective warhead and considerably improved protection against countermeasures compared with the Sidewinder missile. The mass, length, diameter and interface of the IRIS-T missile are very close to its predecessor achieving a high degree of compatibility which is a must for the IRIS-T program. During the flight tests, the IRIS-T achieved direct impact on the target even with IRCM (IR countermeasures) presence. The highly maneuverable IRIS-T missile will be integrated onto Typhoon, Gripen, F-16, Tornado, and F/A-18 aircraft. Dhiel BGT is the prime contractor for the program and Germany is the lead nation
AIM-9 Sidewinder
The Lima was followed in production in 1982 by the AIM-9M, which is essentially an improved AIM-9L. The Mike has improved background rejection, counter-countermeasures capability and a low smoke motor to reduce the visual signature of the inbound weapon. The AIM-9M has the all-aspect capability of the AIM-9L model, but provides all-around higher performance. The M model has infra-red countermeasures, enhanced background discrimination capability, and a reduced-smoke rocket motor. Deliveries of the initial AIM-9M-1 began in 1982. The only changes from the AIM-9L to the AIM-9M were related to the Raytheon Guidance Control Section (GCS). Several models were introduced in pairs with even numbers designating US Navy versions and odd for US Air Force. All AIM-9M GCS are comprised of three major assemblies; a seeker assembly for detecting and tracking the target; an electronics assembly for processing detected target information; and a servo assembly that transforms electrical tracking signals to mechanical movement of the fins. An umbilical cable assembly provides electrical interface between the missile GCS and the aircraft launcher. The umbilical I-3 cable also allows the flow of coolant from the LAU-7 to the missile GCS. AIM-9M GCS versions include the WGU-4A/B used in the AIM-9M-1 and AIM-9M-3, the WGU-4C/B used in the AIM-9M-4, the WGU-4D/B used in the AIM-9M-6, and the WGU-4E/B GCS used in the AIM-9M-8. The WGU-4E/B GCS uses advanced technology that has evolved through the WGU-4D/B development, while expanding the potential of the IRCM detection circuitry and improving the missile’s capability with respect to tactical IRCM deployment.
Meteor (Future upgrade)
Meteor Beyond-Visual Range Air-to-Air Missile, Meteor is air ramjet-powered missile with advanced seeker technology that can fly at sustained high speeds, over long ranges and with great agility to defeat air-to-air threats range 100-300 km at over Mach 4
AIM-120 AMRAAM
The AIM-120 AMRAAM (Advanced Medium-Range Air-to-Air Missile) is one of the most modern, powerful, and widely used air-to-air missiles in the entire world. After it entered limited service in 1991, this missile has been exported to about 35 countries around the world, where it has certainly been proven with over 3 900 test shots and 10 combat victories.
By the 1980s, the US deemed its current stock of air-to-air missiles, particularly the medium-range AIM-7 Sparrow, were obsolete, or at least not as capable as the latest Soviet missiles of the time. While the Sparrow was effective, with about 60 kills, it was not effective enough. In particular, it had one crushing fault—it was not fire-and-forget, meaning that the pilot was forced to remain on the scene and in danger until the missile reached its target. So, development of the AIM-120 AMRAAM began, along with European development of a short-range missile, resulting in the ASRAAM. In 1991, the AMRAAM entered limited service in the US Air Force. Two years later, it was fully operational there as well as the US Navy, while other countries started to show considerable interest.
Saab RBS15F anti-ship missile
The RBS-15 was adapted for air launch as the “RBS-15F”, entering service in 1989. Such RB-04s as remained in service after that time were passed on to the training role.
The RBS-15F is Flygvapnet JAS-39 Gripen and was carried on the AJS-37 Viggen fighter. The missile’s advanced navigation system can store a large number of map “waypoints” to allow it to maneuver through complicated flight profiles, and it can even perform “feints”, closing in on one target and then veering off abruptly to hit another at the very last moment.
SAAB is now working on a land-attack derivative of the RBS-15F with a “stealthy” radar system, infrared terminal seeker, and new warhead, for introduction no earlier than 2004.
GBU-12D/B Paveway II LGB
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