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´õ±¸³ª ¹ÌÁ¦ ºÎÇ°ÀÇ ºÒ·®ÀÌ Å« ¿øÀÎÁß Çϳª¶ó´Â °Íµµ...
Structural Faults Hit Japan's C-X and P-X; KD-767 Also Delayed
Aviation Week & Space Technology
08/06/2007
Bradley Perrett
Beijing
Printed headline: Cracking Up
First flight of the Kawasaki Heavy Industries C-X will be delayed, after the big Japanese airlifter
failed structural tests.
**ÀϺ» °¡¿Í»çÅ° Áß°ø¾÷ÀÇ C-X ±âÀÇ Ã¹ ºñÇàÀÌ Áö¿¬µÉ °ÍÀ̶ó°í... ¿øÀÎÀº ÀÌ ´ëÇü
¼ö¼Û±â°¡ ±¸Á¶½ÃÇèÀ» Åë°úÇÏÁö ¸øÇÏ¿´´Ù°í...
The P-X maritime patroller, a parallel development by the same manufacturer, has also suffered
structural problems.
**ÇØ»óÃÊ°è±â P-X µµ ¿ª½Ã °°Àº Á¦Á¶»ç Á¦Ç°Àε¥, ¿ª½Ã ±âü±¸Á¶ ½ÃÇè¿¡¼ ¹®Á¦¸¦
ÀÏÀ¸Ä×´Ù°í...
And delivery of the first Boeing KC-767 to Japan has been delayed for a third time - from the
end of this month until March - because it has not passed U.S. safety requirements, says the
defense ministry.
**±×¸®°í, º¸À×ÀÇ KC-767 ±ÞÀ¯±â 1È£±â Àεµ°¡ 3¹ø°·Î Áö¿¬µÇ¾î ÀÌ´Þ ¸»¿¡¼ ³»³â
3¿ù·Î... ¹Ì±¹³» ¾ÈÀü±Ô°ÝÀ» Åë°úÇÏÁö ¸øÇؼ¶ó°í...
The ministry will reportedly delay its plan to order the C-X into production by at least one year.
The decision was originally to be made during the next fiscal year, beginning Apr. 1, but will not
now occur before fiscal 2009.
**C-X ¾ç»êÀÌ ÃÖ¼Ò ÀϳâÀº Áö¿¬µÉ°ÍÀ¸·Î ´çÃÊ ³»³âÀ¸·Î ¿¹»óÇÏ¿´À¸³ª, ȸ°è¿¬µµ·Î
2009³âÀü¿¡´Â ¾î·Æ´Ù°í...
The delay suits the Japanese defense budget; its priorities are being reordered to yield cash for
accelerated upgrades of the country¡¯s F-15J Eagles from next fiscal year because of U.S.
reluctance to supply the Lockheed Martin F-22 Raptor (see p. 24).
**ÀÌ¿Í °°Àº Áö¿¬ÀÌ ÀϺ»ÀÇ ¿¹»ê»óȲ°ú ¸Â¾Æ¶³¾îÁ®, ³»³â ºÎÅÍ F-15J °³·®»ç¾÷¿¡
¿¹»êÀÌ ÅõÀÚµÇ¾î °³·®°èȹ¿¡ °¡¼ÓÀÌ ºÙÀ»°Í À̶ó°í... ¹Ì±¹ÀÌ F-22 °ø±Þ °ÅºÎ·Î
¹ß»ýÇÏ°ÔµÈ, Áï ¾îÂ÷ÇÇ ³»³â C-X ¾ç»êÀ» À§ÇÑ ¿¹»ê È®º¸°¡ ¾î·Á¿ü´Ù´Â...
Tests on a P-X airframe in May resulted in incorrect deformation of the horizontal stabilizer, the
ministry says. An investigation found that the C-X was liable to the same fault.
**5¿ù¿¡ P-X ±âü¿¡ ´ëÇÑ ½ÃÇè¿¡¼ ¼öÆò¹ÌÀÍ¿¡¼ º¯ÇüÀÌ ¹ß»ý. C-X¿¡¼µµ µ¿ÀÏÇÑ
¹®Á¦°¡ ³ª¿Ô´Ù°í...
In July, further strength tests on the C-X resulted in cracks around the main landing gear and
parts of the fuselage. Then another structural test on the P-X fuselage caused cracks and
deformation of the floor of that aircraft.
**7¿ù¿¡ Ãß°¡ÀûÀÎ °µµ ½ÇÇè¿¡¼ C-X ÀÇ ÁÖ Âø·úÀåÄ¡¿Í µ¿Ã¼ ÀϺο¡¼ ±Õ¿ ¹ß»ý.
¶Ç ´Ù¸¥ P-X ±¸Á¶½ÃÇè¿¡¼ µ¿Ã¼ ±Õ¿ °ú ±âü ¹Ù´Ú¸é¿¡ º¯ÇüÀÌ ¹ß»ý.
The ministry still expects the P-X to make its first flight in mid-September, but the C-X will be
delayed until December at the earliest. It, too, was supposed to fly in September.
**Á¤ºÎ °ü°èÀÚ´Â P-X´Â ¿©ÀüÈ÷ 9¿ùÁß¼ø¿¡ ù ºñÇàÀÌ °¡´ÉÇÒ°ÍÀ¸·Î º¸°íÀÖ´Ù°í,
±×·¯³ª C-X´Â »¡¶óµµ 12¿ù·Î °°Àº 9¿ù Ãʵµ ºñÇà ¿¹Á¤À̾úÀ¸³ª, ¾î·Æ°ÔµÇ¾ú´Ù°í...
The manufacturer and the ministry¡¯s Technical Research and Development Institute are working
to overcome the problems.
**Á¦Á¶»ç¿Í Á¤ºÎ °ü·Ã ¿¬±¸¼Ò¿¡¼ ¹®Á¦ ÇØ°áÀ» À§ÇØ ³ë·ÂÁß...
The structural weakness is the second big problem to have hit the airframes of the two aircraft.
After the prototypes were assembled earlier this year, it was discovered that the U.S. supplier
of fasteners had sent a batch of badly made rivets, which had to be found and removed from the
two airframes.
**ÀÌ 2 ±âüÀÇ ±¸Á¶ °áÇÔÀº 2¹ø°·Î Å« ¹®Á¦¶ó°í , ±Ý³âÃÊ ¿øÇü±â°¡ ÃÖÁ¾Á¶¸³µÇ°í
³ª¼, Á¶ÀÓ¿ë ºÒ·®¸®ºªÀ» ¹Ì±¹ °ø±ÞÀÚ°¡ º¸³»¿Í »ç¿ëµÈ °ÍÀÌ ¹ß°ßµÇ¾ú´Ù°í,
2 ±âü ¸ðµÎ¿¡¼ ¹ß°ßµÇ¾î Á¦°ÅµÇ¾ú´Ù°í...
Again, it was the C-X that suffered most: 3,663 bad rivets had to be changed on its prototype,
compared with 161 on the P-X.
** C-X°¡ ÁַΠŸ°ÝÀ» ¹Þ¾ÒÀ¸¸ç, 3663°³ÀÇ ºÒ·® ¸®ºªÀÌ ±³Ã¼µÇ¾ú´Ù°í... P-X´Â
161°³°¡ ±³Ã¼µÇ¾ú´Âµ¥...
In 369 locations on the C-X airframe, the rivets could not be replaced; so surrounding fasteners
were replaced with stronger rivets. The same happened in four places on the P-X.
**C-X ±âü¿¡¼´Â 369°³ ÁöÁ¡Àº ¸®ºª ±³Ã¼°¡ ºÒ°¡´ÉÇÏ¿©, ÁÖº¯ÀÇ Á¶ÀÓÀåÄ¡¸¦
´õ¿í °·ÂÇÑ ¸®ºªÀ¸·Î ±³Ã¼, P-X ¿¡¼´Â 4±ºµ¥°¡ °°Àº ¹æ½ÄÀ¸·Î ±³Á¤µÇ¾ú´Ù°í...
The 141-metric-ton C-X - a twin-turbofan aircraft comparable with a C-141 - also needed other
reinforcement.
** 141Åæ Â¥¸® C-X´Â, C-141 ±Ô¸ðÀÇ Åͺ¸ÆÒ ±âü, Ãß°¡ÀûÀÎ °È°¡ ÇÊ¿äÇÏ´Ù°í...
Kawasaki¡¯s staff worked long extra hours to fix those problems and get the aircraft back on
schedule for the September first flights, but the new structural weaknesses will now prevent the
C-X from achieving that plan.
**°¡¿Í»çÅ° ¿£Áö´Ï¾îµéÀÌ ¸¹Àº ÃÊ°ú±Ù¹«¸¦ ÅëÇØ ÀÏÁ¤À» ¸ÂÃß¾î º¸·ÁÇÏ¿´À¸³ª,
»õ·Î¿î ±¸Á¶Àû °áÇÔÀÌ °èȹ ´Þ¼ºÀ» ¹æÇØÇÏ¿´´Ù°í...
Despite its structural problems, the C-X is a simpler project than the P-X, which is to have
Japanese-developed engines and combat system. The C-X is powered by commercial General
Electric CF6-80C2s.
**ÀÌ·¯ÇÑ ±¸Á¶Àû °áÇÔ¿¡µµ, C-X´Â P-X ´ëºñ ´Ü¼øÇÑ ÇÁ·ÎÁ§Æ®¶ó°í.. P-X´Â ÀϺ»»ê
¿£Áø°ú ÀüÅõÀåºñ¸¦ °®Ãß°Ô µÈ´Ù°í... C-X´Â GE ÀÇ »ó¾÷¿ë ¿£ÁøÀÎ CF6-80C2¸¦
»ç¿ëÇÑ´Ù°í ÇÕ´Ï´Ù.
With Kazuki Shiibashi in Tokyo.
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