AIFV The AIFV ( " Armored Infantry Fighting Vehicle " ) is a tracked light armored vehicle that serves as an infantry fighting vehicle ( IFV ) in the armies of several countries . It is a development of the M113A1 armored personnel carrier . History . In 1967 , funded by the U . S . Army , the FMC corporation produced two prototype vehicles designated as XM765 - these were based on their experiences with the earlier XM701 vehicle , developed for the MICV - 65 program . The XM765 was based on the M113A1 , upgraded with an enclosed turret and firing ports , so that the infantry could fight from within the vehicle . The army evaluated the vehicle , but decided that they wanted a better protected and more mobile vehicle , selecting instead the M2 Bradley . FMC continued development as a private venture , resulting in the product improved ( PI ) M113A1 in 1970 . The PI M113A1 had the driver and engine at the front , with an enclosed weapon station in the center of the hull and the commander seated at the rear . This arrangement meant that the commander had a very poor forward view . FMC went back to the drawing board and came up with a new design , which had the driver on the front left of the hull and the commander seated behind him . To the right of the commander was a one man turret . The vehicle would later be designated the AIFV ( armored infantry fighting vehicle ) . While the US was uninterested in the design , a number of other governments were interested in the vehicle , which was simpler , lighter , and cheaper than the Bradley . After a series of demonstrations and the delivery of four evaluation vehicles in 1974 , the Netherlands government placed an order for 880 of the vehicles in 1975 , which were designated YPR - 765 when they entered service . Some changes were made at the request of the Dutch government , including shifting the weapon station to the right side and moving the commander behind the driver . The Netherlands ordered 2 , 079 , of which 815 were produced locally under license . Under the YPR - 2000 program , virtually all Dutch vehicles were upgraded to YPR - 765A1 standard that is easily identified by the 3 - tone NATO camouflage pattern . During the war in Afghanistan , several vehicles were fitted with additional armour . The Philippines also received 45 vehicles in 1979 , these were intended to take 25mm cannons , although some were later modified to fit 12 . 7mm machine guns . In 1979 , Belgium placed an order for 514 AIFV - B ( to be produced locally ) along with 525 M113A - B ( similar to the M113 A2 ) . The first vehicles were delivered in 1982 . Turkey selected the AIFV in 1989 , after a competition involving the Alvis Vickers Warrior IFV and United Defense LP Armoured Infantry Fighting Vehicle . The total value of the contract for 1 , 698 vehicles was US $ 1 . 076 billion . The first 285 hulls were produced in Belgium , the remaining vehicles were produced entirely in Turkey . A little way into the production run , with 200 vehicles completed the Turkish AIFV specification was updated to include a more powerful power pack developing 300 horsepower , an Allison X - 200 - 4 transmission and hydrostatic steering from the M113A3 . During the production run , a number of changes were made to the armament of the vehicle including different turret packages , and power packs . Description ( per Dutch variant ) . The hull of the vehicle is made of welded aluminum , with spaced steel laminate armor bolted onto the side and front . The voids of the armor are filled with polyurethane foam , which gives the vehicle extra buoyancy when travelling in the water . The engine sits on the front right of the hull , behind a hatch that can used to remove the complete powerpack . The powerpack is similar to the M113A1 , except for a larger radiator capacity and turbocharger . The transmission is also fitted with heavy duty components from the M548 tracked cargo carrier . Immediately to the left of the engine is the driver , above whom is a hatch that opens to the right . The driver has four M27 day periscopes . The driver ' s center periscope can be replaced by a passive infra - red periscope for night driving . The commander sits immediately behind the driver , and has a cupola which can be completely traversed . The cupola has five periscopes , four of which are M17 day periscopes , the fifth has 1x to 6x variable magnification . The turret is fitted on the right side of the hull behind the engine . The turret has electro - hydraulic traverse and can elevate from - 10 to + 50° and can traverse and elevate at a speed of 60° / sec . The turret mounts an Oerlikon Contraves 25 mm KBA - B02 cannon with a dual ammunition feed , mounted to the left is a 7 . 62 mm FN MAG machine gun . 180 rounds of 25 mm are ready to use , with another 144 rounds stored in the hull . The coaxial gun has 230 rounds ready with a further 1 , 610 stored in the hull . The troop compartment is at the rear of the hull ; a large power operated ramp allows access through the rear of the vehicle , a door is also provided in the ramp . Additionally a single piece hatch covers the top of the troop compartment . The compartment contains seven troops in the Dutch variant , with six sitting back to back facing outwards and a single passenger sitting between the command and the turret facing backwards . There are two firing ports in each side of the hull and a single firing port in the rear . The side firing ports are provided with M17 periscopes , the rear one is fitted with a M27 periscope . Variants . Turkish service variants . See ACV 300