- warspot.ru 13021-bolshegolovyy-kreyserАнглийский танк-истребитель Challenger I: создание, производство, применение и несостоявшиеся испытания в СССР.
- nn.tsargrad.tv news/tank-chellendzher-istorija-…Серийное производство танка "Челленджер" (танк Challenger) началось в 1983 году и продолжалось до 1990 года.
- tank-afv.com coldwar/UK/Challenger-I.phpAfter being re-christened Cheviot and then Challenger, the new MBT was accepted and entered service with the British Army in 1983.
- militaryfactory.com armor/detail.php…The Challenger 2 remains the standard British Army main battle tank today and has proven equally excellent in its own right.
- keymilitary.com article/challenger-1-main-battle-…The Challenger 1 was never supposed to see service with the British Army, nevertheless, despite its short service period, the tank quickly became a British icon.
- thetankchannel.com challenger1.htmlCompared to its predecessor, the Challenger 1 was a major improvement.
- fighting-vehicles.com tanks/challenger-1-main-…Challenger 1 Mk3: Modified storage bins for 120mm rounds, unspecified minor hull modifications and Quick release for rear mounted fuel drums.
- tanknutdave.com the-british-challenger-1-main-…The British Army took delivery of the Challenger in March of 1983 from the manufacturer at the time, Royal Ordnance Leeds.
- wiki.warthunder.com Challenger_1_(Family)The Challenger 1 is a British 3rd generation main battle tank put into service in 1983.
- inetres.com gp/military/cv/tank/Challenger1.htmlThe Challenger is essentially a modified Shir 2, which was built for Iran.