Question: When did the operator of Blowpipe start using the SA80?

full_context: Document 1: Anti-aircraft warfare: Some nations started rocket research before World War II, including for anti-aircraft use. Further research started during the war. The first step was unguided missile systems like the British 2-inch RP and 3-inch, which was fired in large numbers from Z batteries, and were also fitted to warships. The firing of one of these devices during an air raid is suspected to have caused the Bethnal Green disaster in 1943. Facing the threat of Japanese Kamikaze attacks the British and US developed surface-to-air rockets like British Stooge or the American Lark as counter measures, but none of them were ready at the end of the war. The Germans missile research was the most advanced of the war as the Germans put considerable effort in the research and development of rocket systems for all purposes. Among them were several guided and unguided systems. Unguided systems involved the Fliegerfaust (literally "aircraft fist") as the first MANPADS. Guided systems were several sophisticated radio, wire, or radar guided missiles like the Wasserfall ("waterfall") rocket. Due to the severe war situation for Germany all of those systems were only produced in small numbers and most of them were only used by training or trial units.
Document 2: PIAT: The Projector, Infantry, Anti Tank (PIAT) Mk I was a British man-portable anti-tank weapon developed during the Second World War. The PIAT was designed in 1942 in response to the British Army's need for a more effective infantry anti-tank weapon and entered service in 1943.
Document 3: SAR 21: The SAR 21 ("Singapore Assault Rifle - 21st Century") is a bullpup assault rifle designed and manufactured in Singapore. First revealed and subsequently adopted by the Singapore Armed Forces (SAF) in 1999, it was designed and developed over a four-year period and was intended to replace the locally license-built M16S1 by the Ministry of Defence (MINDEF), Singapore Army and the Chartered Industries of Singapore (CIS, now ST Kinetics). Many of its design features are directly intended to counter the weaknesses of the M16S1 as encountered operationally by some infantrymen.
Document 4: Firearms regulation in the United Kingdom: The 1997 law did not ban pistols as such and was drafted in terms of small firearms. British law defines a ``pistol ''as a firearm with a barrel shorter than 30 cm (12 in) or a total length of less than 60 cm (24 in) (this definition encompasses revolvers, revolving pistols). Only muzzle - loading pistols -- including muzzle - loading revolvers -- are permitted; in practice all such firearms use black powder -- a Class 1 explosive -- as the propellant. Small quantities of muzzle - loading pistols and revolvers in various calibres, which comply with the regulations, are manufactured. All other pistols are prohibited in Great Britain, with some exceptions such as pistols used for the humane dispatch of injured animals (such as deer) and some historical firearms.
Document 5: ArmaLite AR-15: The ArmaLite AR - 15 was a select - fire, air - cooled, gas - operated, magazine - fed assault rifle manufactured in the United States between 1959 and 1964. Designed by American gun manufacturer ArmaLite in 1956, it was based on its AR - 10 rifle. The ArmaLite AR - 15 was designed to be a lightweight assault rifle and to fire a new high - velocity, lightweight, small - caliber cartridge to allow the infantrymen to carry more ammunition.
Document 6: Blowpipe (missile): The Shorts Blowpipe is a man-portable surface-to-air missile that was in use with the British Army and Royal Marines from 1975. It was superseded by an interim design, Javelin, and later the greatly improved Starstreak.
Document 7: SA80: The SA80 is a British family of 5.56 × 45mm NATO small arms, all of which are selective fire, gas - operated assault rifle s. The L85 rifle variant of the SA80 family has been the standard issue service rifle of the British Armed Forces since 1987, replacing the L1A1 variant of the FN FAL. The first prototypes were created in 1976, with production ending in 1994. The A1 variant was significantly upgraded in the early 2000s by Heckler & Koch as the SA80A2 and remains in service as of 2017. In mid-2016 a prototype A3 variant was showcased which further improved on the weapon and is reportedly being considered to extend the out of service date beyond 2025.
Document 8: Swingfire: Swingfire was developed by Fairey Engineering Ltd and the British Aircraft Corporation, together with Wallop Industries Ltd and minor subcontractors. It replaced the Vickers Vigilant missile in British service. Its design incorporated elements from its predecessor the Vigilant and the experimental Orange William missile.
Document 9: MILAN: MILAN (; , "milan" is French for kite) is a European anti-tank guided missile. Design of the MILAN started in 1962, it was ready for trials in 1971, and was accepted for service in 1972. It is a wire guided SACLOS (semi-automatic command to line-of-sight) missile, which means the sight of the launch unit has to be aimed at the target to guide the missile. The MILAN can be equipped with a MIRA or MILIS thermal sight to give it night-firing ability.
Document 10: Lightweight Multirole Missile: The Lightweight Multirole Missile (LMM; previously known as FASGW(L)) is a lightweight air-to-surface and surface-to-surface missile under development by Thales Air Defence for the United Kingdom. The Ministry of Defence (MOD) has placed an initial order for 1,000 missiles and deliveries were due to start in 2013. The missile is known as Martlet in British service.
Document 11: Anti-aircraft warfare: In the 1982 Falklands War, the Argentine armed forces deployed the newest west European weapons including the Oerlikon GDF-002 35 mm twin cannon and SAM Roland. The Rapier missile system was the primary GBAD system, used by both British artillery and RAF regiment, a few brand-new FIM-92 Stinger were used by British special forces. Both sides also used the Blowpipe missile. British naval missiles used included Sea Dart and the older Sea Slug longer range systems, Sea Cat and the new Sea Wolf short range systems. Machine guns in AA mountings was used both ashore and afloat.
Document 12: SA80: After receiving feedback from users and incorporating the various design changes requested, including adapting the rifle for use with the heavier Belgian SS109 version of the 5.56×45mm round and improving reliability, the weapon system was accepted into service with the British Armed Forces in 1985 as the SA80. The SA80 family originally consisted of the L85A1 Rifle, the L86A1 Light Support Weapon (LSW), and L98A1 Cadet GP Rifle. The first weapons were issued in October 1985.
Document 13: FN F2000: The FN F2000 is a 5.56×45mm NATO bullpup assault rifle, designed by FN Herstal in Belgium. The F2000 made its debut in March 2001 at the IDEX defence exhibition held in Abu Dhabi, in the United Arab Emirates. As of early 2019, the F2000 is removed from the FN international and US websites.
Document 14: Ak 5: The first versions of the Ak 5 family were made by the Swedish company FFV Ordnance AB (now part of Saab Bofors Dynamics) under license from FN, with deliveries starting in 1986. This version of the Ak 5 is still in the inventory of the Swedish Armed Forces, but is no longer issued to soldiers, having been replaced by the Ak 5C and Ak 5D. This version uses fixed iron sights, and the Swedish Armed Forces have estimated that the maximum practical distance is 400 meters, but it can be used at longer ranges. This brings it in line with the M16, using the Swedish Armed Forces definition of maximum practical distance.
Document 15: ArmaLite AR-10: The final Artillerie Inrichtingen design is known as the "Portuguese" model AR-10. This final version incorporated all that had been learned to date about the AR-10, including infantry service rifle and field test reports. In addition to a heavier barrel with chrome-lined chamber, optional bipod, and the removable plastic/metal handguards of the Transitional model, the Portuguese variant had wider bolt lugs, a stronger extractor, a new simplified three-position gas regulator, and a cocking handle featuring a forward bolt assist. It is believed that approximately 4,000-5,000 Portuguese variants were produced; nearly all of them were sold to the Portuguese National Defense Ministry by the Brussels-based arms dealer SIDEM International in 1960. The AR-10 was officially adopted by the Portuguese paratrooper battalions ("Caçadores páraquedistas"), and the rifle saw considerable combat service in Portugal's counter-insurgency campaigns in Angola and Mozambique.
ground_truth: 1987
sub_queries: Blowpipe >> operator Answer: British Army
when did British Army start using the sa80 Answer: 1987