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37 result(s) to your search. (gun.)

David
Fri December 20, 2002 4:27pm

Chief Warrant Officer Bil

Chief Warrant Officer Bill Dunn from Mena, AR, sights a simulated small boat carrying contraband and reports its position to the bridge while Gunner's Mate 2nd Class Remon Peterson from Lakeland, FL, stands by on a .50 caliber machine gun. Both Dunn and Peterson are assigned to the U.S. Navy guided missile cruiser USS Yorktown and are participating in the 43rd annual UNITAS exercise. UNITAS is the largest multi-national naval exercise conducted with naval forces from the U.S., the Caribbean Sea, and South and Central America. The exercises focus on building multinational coalitions while promoting hemispheric defense and mutual cooperation. U.S. Navy photo by Photographer's Mate 1st Class Martin E. Maddock.

David
Wed January 8, 2003 8:00am
Rating: 10

M-113 ACAV

Two M60 GPMG's were mounted, one either side of the rear hatch, and fitted with protective gun shields. An FMC-designed armoured gun shield/turret combination was also added to the commanders cupola to afford him protection when manning the .50 cal machine gun. This vehicle was designated the M-113 Armored Cavalry vehicle

David
Wed January 8, 2003 8:00am

M-163 Vulcan

Originally designed for an air defence role, the M-163 mounted a six-barrel 20mm vulcun gatling gun. Used in the ground assault role similar to the M-42 Duster, the M-163 could lay down some devastating fire-power. One problem however was the vast quantity of ammunition required to keep the vehicle fully operational.

David
Wed January 8, 2003 8:00am

David
Wed January 8, 2003 8:11am

RPD-7.62mm GPMG

The standard infantry squad support weapon, the RPD was analogous to the US M-60 and fired a 7.62mm slug from a 100 round belt which was usually contained in a drum mounted below the gun. The drum itself could be changed in a matter of seconds by an experienced gunner and protected the ammo from dirt and hence jamming. With a maximum rate of cyclic fire of about 150 rounds per minute, an effective range of 800m and rapid reload time, this light and uncomplicated weapon was capable of laying down sustained heavy fire. The gunner was usually accompanied by an assistant acting as an ammo carrier, loader and capable of taking over as the primary gunner in the event of the main gunner becoming a casualty. The RPD was approximately 1036mm in length (521mm barrel ) and had a muzzle velocity of 700m per second.

David
Wed January 8, 2003 8:39am

Soviet B-10 (RG82) 82mm r

Soviet B-10 (RG82) 82mm recoilless gun. Used by the Viet Cong, the B10 was a smoothbore, breech-loaded and percussion-fired gun mounted on a tripod-supported pedestal. The trigger and bolt being accommodated in a pistol-grip located above and to the right of the tripod mount, whilst the optical sight is on the opposite side in front of a rectangular, perforated guard. The gun was designed to be transported in a truck or armoured personnel carrier, but can be towed by its four-man crew on its small two-wheeled carriage using the conspicuous tow-bar fitted below the muzzle. The small castor wheel below the tow-bar is designed to prevent the muzzle touching the ground while the gun is being maneuvered or set up for firing on the tripod. The latter can be adjusted to give either a low silhouette or a better field of view, but the weapon can, if necessary, also be fired whilst still on the wheeled mount. A rate of fire of 6-7 rpm is attributed to the B10.

David
Wed January 8, 2003 8:39am

Czech T-21 (Tarasnice) 82

Czech T-21 (Tarasnice) 82mm recoilless gun. A smooth-bore weapon, firing a shaped-charge fin-stabilised HEAT round, which is breech-loaded, and fired electrically - as with the P27 anti-tank grenade launcher, the trigger action works a magneto. To cope with the direct and indirect fire capability, the T21 was equipped with ordinary iron sights graduated in 50m intervals and also a telescopic sight graduated at 100 m intervals.

David
Wed January 8, 2003 8:39am

Soviet B-11 (RG107) 107mm

Soviet B-11 (RG107) 107mm recoilless gun. The B11 was designed primarily as an anti-tank gun, able to pierce 350mm of armour at 450m, it was light and mobile enough on its two-wheeled carriage to be maneuvered in battle by its five-man crew using the light tow-bar attached below the muzzle. Although the B11 can, like the smaller but similar B10, be fired from its wheeled mount, the motor-car-type wheels were awkward and were often removed whilst the gun was raised on its tripod.

David
Thu January 16, 2003 10:39am

AH-64 Apache

Function: Fire support and security for forward and rear area forces, point target/anti-armor, anti-helicopter, armed escort, supporting arms control and coordination, point and limited area air defense from enemy fixed-wing aircraft, armed and visual reconnaissance.

History: Apache production began in 1982 and the first unit was deployed in 1986. As of November 1993, 807 Apaches were delivered to the Army. The last Army Apache delivery is scheduled for December 1995. Thirty-three attack battalions are deployed and ready for combat. The Army is procuring a total of 824 Apaches to support a new force structure of 25 battalions with 24 Apaches for each unit (16 Active; two Reserve; seven National Guard) under the Aviation Restructure Initiative. The Apache has been sold to Israel, Egypt, Saudi Arabia, the UAE, and Greece.

Description: The Boeing (McDonnell Douglas) (formerly Hughes) AH-64A Apache is the Army's primary attack helicopter. It is a quick-reacting, airborne weapon system that can fight close and deep to destroy, disrupt, or delay enemy forces. The Apache is designed to fight and survive during the day, night, and in adverse weather throughout the world. The principal mission of the Apache is the destruction of high-value targets with the HELLFIRE missile. It is also capable of employing a 30MM M230 chain gun and Hydra 70 (2.75 inch) rockets that are lethal against a wide variety of targets. The Apache has a full range of aircraft survivability equipment and has the ability to withstand hits from rounds up to 23MM in critical areas.

The AH-64 Apache is a twin-engine, four bladed, multi-mission attack helicopter designed as a highly stable aerial weapons-delivery platform. It is designed to fight and survive during the day, night, and in adverse weather throughout the world. With a tandem-seated crew consisting of the pilot, located in the rear cockpit position and the co-pilot gunner (CPG), located in the front position, the Apache is self-deployable, highly survivable and delivers a lethal array of battlefield armaments. The Apache features a Target Acquisition Designation Sight (TADS) and a Pilot Night Vision Sensor (PNVS) which enables the crew to navigate and conduct precision attacks in day, night and adverse weather conditions. The Apache can carry up to 16 Hellfire laser designated missiles. With a range of over 8000 meters, the Hellfire is used primarily for the destruction of tanks, armored vehicles and other hard material targets. The Apache can also deliver 76, 2.75" folding fin aerial rockets for use against enemy personnel, light armor vehicles and other soft-skinned targets. Rounding out the Apache?s deadly punch are 1,200 rounds of ammunition for its Area Weapons System (AWS), 30MM Automatic Gun.

Powered by two General Electric gas turbine engines rated at 1890 shaft horsepower each, the Apache?s maximum gross weight is 17,650 pounds which allows for a cruise airspeed of 145 miles per hour and a flight endurance of over three hours. The AH-64 can be configured with an external 230-gallon fuel tank to extend its range on attack missions, or it can be configured with up to four 230-gallon fuel tanks for ferrying/self-deployment missions. The combat radius of the AH-64 is approximately 150 kilometers. The combat radius with one external 230-gallon fuel tank installed is approximately 300 kilometers [radii are temperature, PA, fuel burn rate and airspeed dependent]. The AH-64 is air transportable in the C-5, C-141 and C-17.

An on-board video recorder has the capability of recording up to 72 minutes of either the pilot or CPG selected video. It is an invaluable tool for damage assessment and reconnaissance. The Apache's navigation equipment consists of a doppler navigation system, and most aircraft are equipped with a GPS receiver.

The Apache has state-of-the-art optics that provide the capability to select from three different target acquisition sensors. These sensors are

- Day TV. Views images during day and low light levels, black and white.
- TADS FLIR. Views thermal images, real world and magnified, during day, night and adverse weather.
- DVO. Views real world, full color, and magnified images during daylight and dusk conditions.

The Apache has four articulating weapons pylons, two on either side of the aircraft, on which weapons or external fuel tanks can be mounted. The aircraft has a LRF/D. This is used to designate for the Hellfire missile system as well as provide range to target information for the fire control computer's calculations of ballistic solutions.

Threat identification through the FLIR system is extremely difficult. Although the AH-64 crew can easily find the heat signature of a vehicle, it may not be able to determine friend or foe. Forward looking infrared detects the difference in the emission of heat in objects. On a hot day, the ground may reflect or emit more heat than the suspected target. In this case, the environment will be "hot" and the target will be "cool." As the air cools at night, the target may lose or emit heat at a lower rate than the surrounding environment. At some point the emission of heat from both the target and the surrounding environment may be equal. This is IR crossover and makes target acquisition/detection difficult to impossible. IR crossover occurs most often when the environment is wet. This is because the water in the air creates a buffer in the emissivity of objects. This limitation is present in all systems that use FLIR for target acquisition.

Low cloud ceilings may not allow the Hellfire seeker enough time to lock onto its target or may cause it to break lock after acquisition. At extended ranges, the pilot may have to consider the ceiling to allow time for the seeker to steer the weapon onto the target. Pilot night vision sensor cannot detect wires or other small obstacles.

Overwater operations severely degrade navigation systems not upgraded with embedded GPS. Although fully capable of operating in marginal weather, attack helicopter capabilities are seriously degraded in conditions below a 500-foot ceiling and visibility less than 3 km. Because of the Hellfire missile's trajectory, ceilings below 500 feet require the attack aircraft to get too close to the intended target to avoid missile loss. Below 3 km visibility, the attack aircraft is vulnerable to enemy ADA systems. Some obscurants can prevent the laser energy from reaching the target; they can also hide the target from the incoming munitions seeker. Dust, haze, rain, snow and other particulate matter may limit visibility and affect sensors. The Hellfire remote designating crew may offset a maximum of 60 degrees from the gun to target line and must not position their aircraft within a +30-degree safety fan from the firing aircraft.

The Apache fully exploits the vertical dimension of the battlefield. Aggressive terrain flight techniques allow the commander to rapidly place the ATKHB at the decisive place at the optimum time. Typically, the area of operations for Apache is the entire corps or divisional sector. Attack helicopters move across the battlefield at speeds in excess of 3 kilometers per minute. Typical planning airspeeds are 100 to 120 knots during daylight and 80 to 100 knots at night. Speeds during marginal weather are reduced commensurate with prevailing conditions. The Apache can attack targets up to 150 km across the FLOT. If greater depth is required, the addition of ERFS tanks can further extend the AH-64's range with a corresponding reduction in Hellfire missile carrying capacity (four fewer Hellfire missiles for each ERFS tank installed).

The Russian-developed Mi-24 HIND is the Apache's closest couterpart. The Russians have deployed significant numbers of HINDs in Europe and have exported the HIND to many third world countries. The Russians have also developed the KA-50 HOKUM as their next generation attack helicopter. The Italian A-129 Mangusta is the nearest NATO counterpart to the Apache. The Germans and French are co-developing the PAH-2 Tiger attack helicopter, which has many of the capabilities of the Apache.

The AH-64A: The AH-64 fleet consists of two aircraft models, the AH-64A and the newer Longbow Apache (LBA), AH-64D. AH-64A model full-scale production began in 1983 and now over 800 aircraft have been delivered to the U.S. Army and other NATO Allies. The U.S. Army plans to remanufacture its entire AH-64A Apache fleet to the AH-64D configuration over the next decade. The AH-64A fleet exceeded one million flight hours in 1997, and the median age of today's fleet is 9 years and 1,300 flight hours.

The AH-64A proved its capabilities in action during both Operation Restore Hope and Operation Desert Storm. Apache helicopters played a key role in the 1989 action in Panama, where much of its activity was at night, when the AH-64's advanced sensors and sighting systems were effective against Panamanian government forces.

Apache helicopters also played a major role in the liberation of Kuwait. On 20 November 1990, the 11th Aviation Brigade was alerted for deployment to Southwest Asia from Storck Barracks in Illesheim Germany. The first elements arrived in theater 24 November 1990. By 15 January 1991 the unit had moved 147 helicopters, 325 vehicles and 1,476 soldiers to the region. The Apache helicopters of the Brigade destroyed more than 245 enemy vehicles with no losses.

During Operation Desert Storm, AH-64s were credited with destroying more than 500 tanks plus hundreds of additional armored personnel carriers, trucks and other vehicles. They also were used to destroy vital early warning radar sites, an action that opened the U.N. coalition's battle plan. Apaches also demonstrated the ability to perform when called upon, logging thousands of combat hours at readiness rates in excess of 85 percent during the Gulf War.

While recovery was ongoing, additional elements of the 11th Aviation Brigade began the next chapter of involvement in the region. On 24 April 1991 the 6th Squadron, 6th Cavalry?s 18 AH-64 helicopters began a self-deployment to Southwest Asia. The Squadron provided aerial security to a 3,000 square kilometer region in Northern Iraq as part of the Combined Task Force of Operation Provide Comfort.

And the AH-64A Apache helped to keep the peace in Bosnia. April of 1996 saw the beginning of the 11th Regiment?s involvement in Bosnia-Herzegovina. Elements of 6-6 Cavalry served as a part of Task Force Eagle under 1st Armored Division for 7 months. In October of 1996, Task Force 11, consisting of the Regimental Headquarters, 2-6 Cavalry, 2-1 Aviation and 7-159 Aviation (AVIM) deployed to Bosnia-Herzegovina in support of Operation Joint Endeavor/Operation Joint Guard for eight months. In June of 1998 the Regimental Headquarters, 6-6 Cav and elements of 5-158 Aviation were again deployed to Bosnia-Herzegovina in support of Operations Joint Guard and Joint Forge for 5 months. The AH-64A?s advanced sensors and sighting systems proved effective in removing the cover of darkness from anti-government forces.

Army National Guard units in North and South Carolina, Florida, Texas, Arizona, Utah and Idaho also fly Apache helicopters. The Army has fielded combat-ready AH-64A units in the United States, West Germany and in Korea, where they play a major role in achieving the US Army's security missions.

By late 1996, McDonnell Douglas Helicopters delivered 937 AH-64A Apaches -- 821 to the U.S. Army and 116 to international customers, including Egypt, Greece, Israel, Saudi Arabia and the United Arab Emirates.

The Apache is clearly one of the most dynamic and important programs in aviation and the Army, but it is not without limitations. Due to the possibility of surging the engines, pilots have been instructed not to fire rockets from in-board stations. According to current doctrine, they are to fire no more than pairs with two outboard launchers every three seconds, or fire with only one outboard launcher installed without restrictions (ripples permitted). These are the only conditions permitted. Other firing conditions will be required to be approved via a System Safety Risk Assessment (SSRA).

The improvement of aircraft systems troubleshooting is a high priority issue for O&S Cost reduction. Because of funding cuts, the level of contractor support to the field has been reduced. This results in higher costs in no fault found removals, maintenance man hours, and aircraft down time. The Apache PM, US Army Aviation Logistics School, and Boeing are currently undertaking several initiatives. Upgrading and improving the soldier's ability to quickly and accurately fault isolate the Apache weapons system is and will continue to be an O&S priority until all issues are resolved.

Prime Vendor Support (PVS) for the entire fleet of AH-64s is a pilot program for the Army, and may become a pilot program for the Department of Defense. PVS will place virtually all of Apache's wholesale logistic responsibility under a single contract. The Apache flying hour program will provide upfront funding for spares, repairables, contractor technical experts, and reliability improvements. Starting at the flight line there will be contractor expert technicians with advanced troubleshooting capability assigned to each Apache Battalion. At the highest level, PVS represents a single contractor focal point for spares and repairs. The intent is to break the current budget and requirements cycle that has Apache at 67% supply availability with several thousand lines at zero balance.

Modernization Through Spares (MTS) is a spares/component improvement strategy applied throughout the acquisition life cycle and is based on technology insertion to enhance systems and extend useful life while reducing costs. The MTS initiative seeks to leverage current procurement funds and modernize individual system spares thereby incrementally improving these systems. MTS is accomplished via the "spares" acquisition process. MTS, a subset of acquisition reform, seeks to improve an end item's spare components. The emphasis is on form, fit and function, allowing a supplier greater design and manufacturing flexibility to exploit technology used in the commercial marketplace.

Apache MTS focuses on the insertion of the latest technology into the design and manufacture of select spares. This is to be accomplished without government research and development (R&D) funds, but rather, uses industry investment. Industry, in turn, recoups this investment through the sale of improved hardware via long term contracts.

Modernization efforts continue to improve the performance envelope of the AH-64A while reducing the cost of ownership. Major modernization efforts within the AH-64A fleet are funded and on schedule. GG Rotor modifications were finished in April 1998,, and future improvements such as a Second Generation FLIR, a High Frequency Non-Line of Sight NOE radio, and an internal fully crashworthy auxiliary fuel tank are all on the verge of becoming a reality for the Apache.

The Aviation Mission Planning System (AMPS) and the Data Transfer Cartridge (DTC) are tools for the Embedded Global Positioning Inertial Navigation Unit (EGI) equipped AH-64A aircraft that allow aircrews to plan missions and download the information to a DTC installed in the Data Transfer Receptacle (DTR). This saves the pilots a lot of "fat fingering" and eliminates the worry of everyone being on the same "sheet of music". Other features of the DTC include; saving waypoints and targets and troubleshooting. The EGI program is a Tri-service program with the Army, Air Force and Navy.

??General Characteristics, AH-64 Apache

Manufacturers:
Boeing McDonnell Douglas Helicopter Systems (Mesa, AZ)

General Electric (Lynn, MA)

Martin Marietta (Orlando, FL)

Power Plant:
Two T700-GE-701Cs

Length:
58.17 feet (17.73 meters)

Height:
15.24 feet (4.64 meters)

Wingspan:
17.15 feet (5.227 meters)

Weight:
11,800 pounds empty

15,075 pounds (6838 kilograms) loaded

Maximum Speed:
153 knots (284 kph)

Range:
1,900 kilometers

Crew:
Two: pilot and copilot/gunner

Armament:
M230 33mm gun

70mm (2.75 inch) Hydra-70 folding-fin aerial rockets

AGM-114 Hellfire anti-tank missiles

AGM-122 Sidearm anti-radar missile

AIM-9 Sidewinder air-to-air missiles

Introduction Date:
1986

David
Thu January 16, 2003 10:39am

OH-58 Kiowa Warrior

History: The first Kiowa Warrior was delivered to the Army in May 1991. It is replacing selected AH-1 Cobra attack helicopters (those that function as scouts in air cavalry troops and light attack companies), and OH-58A and C Kiowas in air cavalry troops. Initially a Full Material Release decision was scheduled for Q4FY94. However, the aircraft has been able to attain only a "conditional" material release from the Army Materiel Command due to the autorotation issue described below and other safety concerns. The Kiowa Warrior was placed on the OSD oversight list in 1990 for DT, OT, and as a LFT candidate. There is no B-LRIP report or acquisition decision required for this system, however a LFT&E report will be submitted to Congress.

Since the last OA conducted in 1994, the Army has determined that modifications in mission and equipment over time have created a deficiency in the Kiowa Warrior autorotation capability. In general terms, the cumulative addition of new equipment caused the weight of the aircraft to increase dramatically, meaning that in the event of an engine failure or other similar occurrence, the aircraft lost some of its original autorotative capability, causing the aircraft to descend faster and experience an extended ground slide upon touchdown. As a result, the Army developed a two-phase Safety Enhancement Program (SEP) to reduce the safety risk to Kiowa Warrior aviators. The SEP consists of both training and material changes.

An improved version of the T-703 (R-3) engine will be installed which provides higher reliability and double the current overhaul interval, greater hot day power, and a Full Authority Digital Electronic Control (FADEC). The FADEC provides automatic rotor speed control, inflight restart, and performance recording, as well as more precise fuel metering capabilities. Additionally, an integrated body and head restraint system, a cockpit air bag system, and energy absorbing seats will be installed to enhance survivability in any crash situation.

Beginning in March 1997, a number of improvements were introduced into new production OH-58Ds resulting from Task Force XXI exercises that took place at Fort Irwin, CA in March 1997, to demonstrate the Army's concept of the "digital battlefield". These improvements include an improved Allison 250-C30R/3 650 shp engine equipped with an upgraded hot section to improve high-altitude/hot-day performance. The C30R/3 will be fitted with a full authority digital electronic control system that will replace the hydromechanical fuel control unit. The improved production Kiowa Warrior will have an integrated cockpit control and display system, master control processor with digital map and video crosslink, along with an improved data modem, secure radio communications, and a GPS embedded in the inertial navigation system. Additional improvements include an infrared jammer, infrared suppressor, radar warning receivers, and a laser warning detector to improve aircraft survivability.

Description: The OH-58D Kiowa Warrior is a two-place single engine armed reconnaissance helicopter. The OH-58D's highly accurate navigation system permits precise target location that can be handed-off to other engagement systems. The OH-58D has an infrared thermal imaging capability and can display night vision goggle flight reference symbology. It's laser designator/laser rangefinder can provide autonomous designation for laser-guided precision weapons. Air-to-Air Stinger (ATAS) issiles provide the Kiowa Warrior with protection against threat aircraft.

The primary mission of the Kiowa Warrior is armed reconnaissance in air cavalry troops and light attack companies. In addition, the Kiowa Warrior may be called upon to participate in the following missions or tasks:

- Joint Air Attack (JAAT) operations
- Air combat
- Limited attack operations
- Artillery target designation

The Kiowa Warrior is an armed version of the earlier OH-58D Kiowa Advanced Helicopter Improvement Program (AHIP) aircraft, which itself was a highly modified version of the OH-58A/C Kiowa. A hostile gunboat presence at night in the Persian Gulf in 1987 created the need for a small armed scout helicopter for interdiction. Close team work between the U.S. Armed Forces and Bell Helicopter Textron, Inc. developed the OH-58D Kiowa Warrior in less than 100 days, to counter this threat.

The Kiowa Warrior procurement plan is to acquire, through modification or retrofit of existing OH-58A and D aircraft, approximately 401 Kiowa Warriors. There are two concurrent programs which produce Kiowa Warriors: a program which modifies OH-58A aircraft, and a retrofit program that will eventually re-configure all 185 OH-58D Army Helicopter Improvement Program models. The Department of the Army has specified an acquisition objective of 507 Kiowa Warriors even though the current procurement authorization is for only 401 of them.

The Mast Mounted Sight (MMS) is one of the key elements of the Kiowa Warrior. Its unique day/night capabilities allow the crew to scan the battlefield with the ability to acquire, identify, and derive the coordinate locations of potential targets.

The U.S. Navy selected the Kiowa Warrior Mast Mounted Sight for use on their ships. They were so pleased with its performance that they entered into a program to update the technology in the existing platform. Their current Mast Mounted Sight II sight is smaller, lighter in weight, and half the cost of the US Army MMS. In addition, the optics have been upgraded through the application of technology insertion. The dollar cost avoidance in acquisition, operations and support cost, and spare components to support this system on the Kiowa Warrior is potentially significant.

The AIM-1 MLR (and DLR), a class IIIb infrared (IR) laser, provides a beam of light invisible to the naked eye. Its beam is said to be effective for aiming at ranges up to 3km. It is designed to operate in conjunction with standard night vision devices (its beam's impact point visible). The AIM-1 laser is boresighted to a point 2.8 inches vertically above the .50 Cal machine gun barrel bore center line of sight at a distance of 500 inches. This provides the proper offset for firing at a range of 1000 meters.

The principal difference between the Kiowa Warrior and its immediate OH-58D predecessor is a universal weapons pylon on both sides of the aircraft capable of accepting combinations of the semi-active laser Hellfire missile, the Air-to-Air Stinger (ATAS) missile, 2.75" Folding Fin Aerial Rocket (FFAR) pods, and a 0.50 caliber machine gun. In addition to these weapons, the Kiowa Warrior upgrade includes changes designed to provide improvements in air-to-air and air-to-ground communications, mission planning and management, available power, survivability, night flying, and reductions in crew workload through the use of on-board automation and cockpit integration.

The robust sensor capabilities of the KW in its mission as an armed reconnaissance aircraft, would be greatly enhanced by more effective communications within today?s digitized battlefield. By using the highly integrated avionics already on the aircraft, this capability can be added with only minor hardware and software changes. Video Image Crosslink (VIXL) provides the KW with the capability to send and receive still frame images over one of the FM radios. The VIXL consists of a circuit card installed in the IMCPU. In 1996 the KW Product Manager?s Office (PMO) developed four VIXL ground stations, which consist of an Aviation Mission Planning Station (AMPS) with a Tactical Communication Interface Modules (TCIM) and a SINCGARS radio. The ground stations will be used to transfer VIXL images on the ground.

The Improved Mast Mounted Sight System Processor (IMSP) will replace the current configuration MMS System Processor (MSP). The product improved aircraft will include a new high-speed digital signal processor that will provide improved tracking capabilities by split-screen in both TV and Thermal Imaging Sight (TIS) modes, low contrast target tracking, simultaneous multi-target tracking of up to six targets, moving target indicator, aided target recognition, and automatic reaquiring of targets lost due to obstruction. The operator video display will reflect real time TV zoom and still frame capabilities. The IMSP enhancements consist of the use of high-speed Gallium Arsenide based digital signal processor integrated circuits in the MMS signal processor. The Circuit Card Assembly count in the processor will be reduced from 30 to 16. This reduction and use of state-of-the-art component technology enhances reliability, maintainability, and supportability. The IMSP will provide for enhanced growth and will not require substantial aircraft hardware changes. An update to the aircraft software, however, is required to execute the enhanced functions of the upgraded processor. This provides for future insertion of neural net automatic target recognition, identification of friend or foe, passive ranging, and real-time image enhancements. Form and fit of the existing MMS system processor is maintained, and is backwards compatible with the MMS System Processor (MSP). As of July 1997, all aircraft delivered from the Bell Helicopter production lots will have the IMSP installed. All retrofit aircraft will be equipped MSPs. As the MSPs are removed through attrition, they are replaced with IMSPs.

The addition of weapons, improved cockpit integration, and better navigational capability have resulted in an aircraft that is much more capable than its predecessor. Furthermore, the potential enhancements to mission planning and management provided by the aviation mission planning system (AMPS) and data transfer system (DTS) were very apparent during the DSUFTP. All of these improvements were achieved without any noticeable impact on readiness, as indicated by the aircraft's operational availability.

General Characteristics, OH-58D Kiowa Warrior

Contractor:
Bell Helicopter Textron

Power Plant:
485 kilowatt (650 skip) Allison turbine

Survivability Equipment:
Infrared seeker jammer

Pulse and CW radar warning receivers

Laser warning detector

Inherent infrared suppression

Maximum Speed:
125 knots (232 kph)

Range:
268 nautical miles (497 kilometers), sea level

Weapons:
Two pylons can be armed with any of the following:

Two Hellfire missiles
Seven Hydra 70 rockets
Two air-to-air Stinger missiles
.50 caliber machine guns

David
Thu January 16, 2003 10:59pm

M1 Abrams

Function: Main battle tank (MBT).

Description: The M1 has a very angular appearance, reflecting the modular nature of its armor components, with the turret mounted centrally on the hull. The M1 has a crew of four. The driver sits centered in the hull and forward of the turret, while the loader, gunner and tank commander occupy the turret, with the loader situated to the left of the main gun and the gunner and tank commander sitting in tandem on the right side. The driver's hatch has three periscope vision blocks which provide for forward vision. The center vision block may be removed and replaced with an AN/TVS-2 low-light periscope. The engine is mounted in the rear of the vehicle with the exhaust coming out from a louvered grill centrally mounted in the rear of the hull. The M1 utilizes a torsion bar suspension with seven pairs of cast aluminum road wheels and two return rollers. The drive sprocket is to the rear, an idler compensation wheel is located forward, and there is a gap between the first and second pair of road wheels. The M1 has armored skirts running the full length of the track. M1 track is made up of vulcanized rubber blocks (M156 variety) or removable rubber pads (M158.) The turret is also angular in appearance, with the main gun mounted in an exposed mantlet in the center of the turret face. The M68 rifled cannon is equipped with a metal thermal shroud, a bore gas evacuator located two-thirds of the way down on the barrel, and is equipped with a Muzzle Reference System collimator on the muzzle itself. The M240 coaxial (COAX) machine gun is located to the right of the main gun, with the flash tube extending through the main gun mantlet. The Gunner's Auxiliary Sight (GAS) aperture is located below the COAX flash tube on the right side of the main gun. The M1 has two turret access hatched, mounted side by side, in the middle of the turret roof. The loader's hatch, located on the left side, is equipped with a pintle mounted M240 7.62mm machine gun. The hatch itself is equipped with a single vision periscope on a rotating base. When not in use, the drivers AN/TVS-2 sight may be used in the loader's hatch vision block. The tank commander's hatch is ringed by vision periscopes and the Commander's Weapon Station cupola is equipped with an M2 HB caliber .50 machine gun. The M2 may be fired while the commander is "buttoned up" but the commander must be exposed to reload the weapon. The CWS can be reconfigured to fire an M240 as a replacement weapon. The Gunner's Primary Sight (GPS) is located forward of the commander's cupola. The GPS is housed in an armored box with hinged doors shielding the optics when not in use. The GPS is divided into two halves; a clear glass window for normal daylight viewing and an IR transparent Germanium coated window for the thermal imaging sight. The Laser Range Finder (LRF) is fired through the daylight window. There are individual sponson boxes located on either side of the turret for equipment storage. These boxes are approximately three feet (1m) long and are bracketed by a three-rail cargo rack which runs the length of the turret side. The smoke grenade launchers are located on either side of the turret, forward of the turret sponson boxes. There are mounting points for two radio antennae, one on either side of the turret rear, and the cross wind sensor is mounted upright in the center of the turret rear. A cargo bustle rack is mounted on the rear of the turret and runs the length of the turret rear (in early production M1s this rack was omitted and a fabric cargo net mounted in it's place. An Auxiliary Power Unit (APU) may be mounted in the turret bustle rack or on the rear of the hull.

History: Fielded in February 1980, the M1 General Abrams main battle tank revolutionized armored warfare. Incorporating an advanced shoot-on-the-move fire control system, a thermal imaging sight, a 1500 horsepower gas turbine engine and an advanced armor design similar to the Chobham armor developed in England, the M1 was the most lethal armored vehicle in the world. Conceived in 1971 as a replacement for the aging M60 tank, which was itself an extension of the 1050s era M 47/48 program, the M1 was going to be of a completely new design, establishing a new family of American main battle tanks. Providing the Abrams with a true shoot on the move capability, the fire control system automatically corrects for range, turret slew (motion) rate, crosswind, and tank axial tilt (cant). In addition, the gunner manually enters ammunition or weapon type, air and ammunition temperatures, barometric pressure, and gun tube wear, while range is instantly calculated by a Nd:YAG (Neodymium doped Yttrium Aluminum Garnet) near infrared laser rangefinder. Lastly, the gunner can compensate for gun tube deformation (caused either by heat generated from firing the cannon or atmospheric changes) through the use of a muzzle reference system, which allows for a rapid realignment of the cannon and the gunner's primary sight.

The Chobham armor built into the M1 represents a veritable leap in armor technology. Composed of layers of metal, ceramics, and spaces, this new armor is far superior to RHA (Rolled Homogeneous Armor) in defeating kinetic and chemical energy weapons. To increase crew safety and survivability, all of the M1's ammunition is stored in armored compartments which are designed vent dangerous gasses and fragments away from the crew in the event of an ammunition explosion. The crew and engine compartments are equipped with an automatic fire suppression system, utilizing numerous fire detection sensors and pressurized Halon gas, which can react to and suppress a compartment fire in less than 250 ms.

To survive on the NBC (Nuclear, Biological, Chemical) battlefield the M1 is also equipped with both an over pressurization and air sterilization system which will protect the crew from these hazards and allow them to continue combat operations without having to wear protective overgarments and masks while buttoned up inside the vehicle.

Lastly, the M1 was the first land combat vehicle to utilize a gas turbine multi fuel engine, which offers a higher power to weight ratio than any other contemporary tank power plant and gives the Abrams unparalleled tactical mobility and cross country speed. The M1 retains the M68 105mm rifled cannon used on the M60 series tanks, which was originally based on the British M7 105mm cannon design, and is capable of firing both rifled and fin stabilized ammunition. In addition, the M1 is equipped with two M240 7.62mm machine guns; one mounted coaxially with the main gun and fired by gunner, and the other mounted at the loader's station. The Commanders Weapon Station (CWS) is equipped with an M2 heavy barrel Caliber .50 machine gun. The CWS can be reconfigured to fire the M240 machine gun as a substitute.) The M1 is equipped with a pair of M250 red phosphorus smoke grenade launchers and is capable of generating smoke by injecting diesel fuel into the engine exhaust.

Originally designated the XM1, the first production model was designated the M1, of which 2,374 were built between 1982 and 1985. In 1984 the M1IP (Improved Product) was introduced, which was outwardly identical to the M1, but which incorporated a number of internal automotive, electronic and armor improvements. Production of the M1IP was halted at 84 tanks in 1986, when the Lima and Detroit tank plants were reconfigured to produce the up-gunned 120mm M1A1. In 1992 a study was conducted evaluating the feasibility of upgrading the Army's fleet of M1s to M1A2 SEP (Standard Equipment Package) standard and low rate production was approved in 1994. Since then the Army had agreed to convert 547 M1s to the M1A2 SEP standard.

David
Tue February 11, 2003 1:09pm

.50 Caliber Cartridge

Description: There are currently eleven .50 caliber cartridges in service.

M2/M33 .50 Caliber ball cartridge: The M2 is the original standard .50 caliber ball cartridge. The M33 is a redesigned, modern version of the M2, and is identical in all respects. The M2/M33 can be identified by its unpainted (copper) tip.

M1/M10/M17 .50 Caliber tracer cartridge: The M1/M10/M17 are tracer variants of the M2/M33 cartridge. They are essentially identical to one another in terms of ballistic performance and function. These M1 has a red painted tip, the M10 has a orange tip, and the M17 has a brown tip.

M1 .50 Caliber incendiary cartridge: The M1 incendiary cartridge is an incendiary cartridge primarily intended for use against aircraft and material. The M1 can be identified by its blue tip.

M23 .50 Caliber incendiary cartridge: The M23 incendiary cartridge is similar to the M1 incendiary cartridge and is used in the same capacity as the M1. The M23 cartridge has a blue tip with a light blue ring below it.

M2 .50 Caliber armor piercing cartridge: The M2 armor piercing cartridge was designed for use against soft skinned and lightly armored vehicles as well as for use against enemy built up defensive positions. It has no incendiary component. The M2 can be identified by its black tip.

M8 .50 Caliber armor piercing / incendiary cartridge: The M8 armor piercing / incendiary cartridge was designed for use against soft skinned and lightly armored vehicles as well as material destruction. It has an incendiary component. The M8 can be identified by its silver (aluminum) tip.

M20 .50 Caliber armor piercing / incendiary tracer cartridge: The M20 armor piercing / incendiary tracer cartridge is the tracer variant of the M8 API cartridge. The M20 can be identified by its red tip with a silver (aluminum) ring below that.

M1A1 .50 Caliber blank firing cartridge: Designed for use with training simulators, the M1A1 has no projectile and contains a reduced powder charge. The M1A1 can be identified by its crimped and sealed cartridge opening in place of a projectile.

History: Soon after American servicemen deployed to Europe for World War One, it was recognized that an automatic weapon capable of firing a cartridge larger than those currently in service was sorely needed. In addition to being more powerful than the standard rifle cartridge, this new cartridge would also need an armor penetrating capability to serve as a against the recently introduced tank. Although America was not able to produce such a weapon before the end of the war, research and experimentation with a number of captured German anti-tank firearms eventually lead to the Browning M1921A1 .50 caliber machine gun. Introduced in 1922, the Browning M1921A1 machine gun fired a massive .50 caliber cartridge and had an effective range of over 1000 meters. The M1921A1 was later modified to improve barrel life and reliability, and was redesignated the M2HB (heavy barrel) machine gun in 1933. The M2HB is still in service with the U.S. military where it is used in a number of roles, ranging from infantry heavy machine gun to vehicle, helicopter, and small boat and craft armament.

tdeane
Thu April 24, 2003 10:27am

USS Alabama, aft shot

View from fantail looking to aft section of superstucture and rear battery, 16" gun.

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