中國疑似開發(fā)出超音速軌道炮
中國一艘海軍艦艇的艦首出現(xiàn)的一座神秘、突出的炮塔引發(fā)外界猜測：中國正測試一款超音速“軌道炮”，這將是這種武器首次在海上測試。
Photos taken in a Chinese shipyard of what military experts say appears to be the new weapon come as Beijing pours money into high-tech arms aimed at changing the maritime balance of power with the US.
這些圖片是在中國一造船廠拍攝的，軍事專家表示，圖片中的裝置似乎是這種新武器。此際，中國正將資金投入高科技武器，旨在改變中美之間在海上的力量平衡。
Rail guns rely on electromagnetic pulses to fire projectiles further and faster than conventional guns, targeting enemy ships, aircraft and missiles from up to 100 nautical miles (185km) away. However, they require massive amounts of electric power to function, one of the reasons they have remained mainly on the drawing board.
軌道炮依賴電磁脈沖發(fā)射炮彈，比傳統(tǒng)火炮射程更遠(yuǎn)，速度也更快，能夠打擊距離最遠(yuǎn)達(dá)100海里(185公里)的敵軍艦船、飛機(jī)和導(dǎo)彈。然而，它們需要大量電力才能工作，這是它們目前還主要停留在構(gòu)想中的原因之一。
Recent photographs published online show a hulking turret and three shipping containers fitted on the deck of the Haiyang Shan, an amphibious landing ship, berthed in Wuchang shipyard in Hubei province. Military experts said it appeared to be an experimental rail gun.
最近網(wǎng)上發(fā)布的照片顯示，大型登陸艦“海洋山”號的甲板上安裝了一座巨大的炮塔和3個(gè)航運(yùn)集裝箱，停靠在湖北省武昌造船廠。軍事專家表示，這似乎是一門實(shí)驗(yàn)型軌道炮。
“Based on the pictures a rail gun is a plausible explanation, but it’s not conclusive,” said Chad Ohlandt, senior engineer at the Rand Corporation in Washington.
華盛頓蘭德公司(Rand Corporation)高級工程師查德•奧蘭特(Chad Ohlandt)表示：“根據(jù)照片，軌道炮是一種合理的解釋，但無法完全確定。”
The US has been developing a rail gun since 2005 but a plan to test one on a US navy Spearhead catamaran in 2016 was axed due to high costs.
自2005年以來，美國一直在研制軌道炮，但由于成本高，2016年在一艘美國海軍先鋒級(Spearhead)雙體船上測試軌道炮的計(jì)劃被取消。
A two-decade military build-up by Beijing has begun to focus on high-tech weapons to challenge US dominance in the air and sea. China is developing everything from artificial intelligence and aircraft carrier-killer missiles to drone swarms.
經(jīng)過20年的軍事建設(shè)，中國已開始著重研究高科技武器，以挑戰(zhàn)美國在空中和海上的主導(dǎo)地位。中國正研制各種產(chǎn)品，從人工智能導(dǎo)彈和航母殺手導(dǎo)彈到無人機(jī)蜂群。
Mr Ohlandt said the case for a rail gun in the photo was supported by the three shipping containers mounted on the deck, which may be a power source. However, he added that they did not appear big enough for such a weapon. 奧蘭特表示，甲板上安裝的3個(gè)航運(yùn)集裝箱(可能是電力來源)支持了如下判斷：顯示在照片中的就是軌道炮。然而，他補(bǔ)充稱，如果是為軌道炮配的，這幾個(gè)集裝箱似乎又不夠大。
“If those are generators and power storage systems on the deck, I’m not sure they are large enough to power a rail gun,” he said. “Rail guns typically require a large capacitor bank.”
“如果那幾個(gè)箱子是甲板上的發(fā)電機(jī)和電力存儲系統(tǒng)的話，我不確定它們的體積是否足夠?yàn)檐壍琅谔峁﹦恿Γ?rdquo;奧蘭特表示，“軌道炮一般需要巨大的電容組。”
Mr Ohlandt said the ship could have a capacitor bank in the below-deck cargo area. “It’s also possible that the above-deck stuff is just enough to fire one shot, then wait minutes or hours until they recharge for the next test,” he said.
奧蘭特表示，可能在這艘船甲板下方的貨艙區(qū)域有一個(gè)電容組。他表示：“也有可能甲板上方的那幾樣?xùn)|西僅夠發(fā)射一發(fā)炮彈，然后需要等待幾分鐘或幾小時(shí)來充電，才能進(jìn)行下一次測試。”
The gun, he added, could also be a large conventional naval gun with the above-deck equipment simply powering the oversized test turret.
他補(bǔ)充稱，這門大炮可能是一種大型海軍傳統(tǒng)大炮，甲板上方的設(shè)備只是為巨大的測試炮塔提供動力。
The most recent US test of the technology occurred in November 2016 when the navy tested a 32-megajoule rail gun built by BAE Systems at the Naval Surface Warfare Center in Dahlgren, Virginia. It fired a 16kg projectile at roughly six times the speed of sound — much faster than conventional arms. The Office of Naval Research has said the gun will eventually be able to fire 10 times a minute over 100 nautical miles.
美國最近一次測試該技術(shù)是在2016年11月，當(dāng)時(shí)美國海軍在弗吉尼亞州達(dá)爾格倫的海軍水面作戰(zhàn)中心(Naval Surface Warfare Center)測試了由BAE系統(tǒng)公司(BAE Systems)制造的32兆焦軌道炮。當(dāng)時(shí)它以大約6倍聲速的速度發(fā)射了一枚16公斤的炮彈，速度遠(yuǎn)遠(yuǎn)快于傳統(tǒng)武器。美國海軍研究辦公室(Office of Naval Research)表示，這門大炮最終將能夠每分鐘發(fā)射10發(fā)炮彈，射程達(dá)100海里。
