Last-modified: 2024-01-13 (ÅÚ) 15:45:18 (105d)

¡ÚTBF¡Û(¤Æ¤£¡¼¤Ó¡¼¤¨¤Õ)

Grumman TBF "Avenger".

1930ǯÂå¡Á1940ǯÂå¤Ë¥¢¥á¥ê¥«¤Î¥°¥é¥Þ¥ó¼Ò¤¬³«È¯¡¦À¸»º¤·¡¢¥¢¥á¥ê¥«³¤·³/³¤Ê¼Ââ¤ËǼÆþ¤µ¤ì¤¿Ã±È¯¡¦¥ì¥·¥×¥í´Ï¾å¹¶·âµ¡¡ÊÍë·âµ¡¡Ë¡£

1942ǯ¤Î¥ß¥Ã¥É¥¦¥§¡¼³¤Àï¤Ç¥Ç¥Ó¥å¡¼¤·¡¢°Ê¸å¡¢¥¢¥á¥ê¥«³¤·³¹Ò¶õÂâ¤Î¼çÎϴϾ并·âµ¡*1¤È¤·¤Æ³èÌö¤·¤¿¡£
À¸»ºÅÓÃ椫¤é¥°¥é¥Þ¥ó¤ËÂå¤ï¤Ã¤Æ¥¼¥Í¥é¥ë¡¦¥â¡¼¥¿¡¼¥º¡ÊGM¡Ë¼Ò¤¬À¸»º¤ò°ú¤­·Ñ¤®¡¢Æ±¼Ò¤ÇÀ¸»º¤µ¤ì¤¿µ¡ÂΤϡÖTBM¡×¤È¸Æ¤Ð¤ì¤¿¡£

Ëܵ¡¤Ï¡¢Á°Ç¤¤Î´ÏºÜÍë·âµ¡¤Ç¤¢¤Ã¤¿¥À¥°¥é¥¹TBD¡Ö¥Ç¥Ð¥¹¥Æ¥¤¥¿¡¼¡×?¤Î·çÅÀ¡Ö¹Ò³µ÷Î¥¤¬Ã»¤¹¤®¤ÆÀïÆ®µ¡¡¦µÞ¹ß²¼Çú·âµ¡¤ÈÏ¢·È¤Ç¤­¤Ê¤¤*2¡×ÅÀ¤ò²ò¾Ã¤¹¤ë¤¿¤á¡¢ÆâÉôdzÎÁ¥¿¥ó¥¯¤òÂç·¿²½¤·¡¢¤µ¤é¤Ë¹Ò¶õµûÍë¤òµ¡Æâ¤Ë³ÊǼ¤¹¤ë¥¦¥§¥Ý¥ó¥Ù¥¤Êý¼°¤òºÎÍѤ·¤¿¡£
¤³¤Î¤¿¤á¡¢1940ǯÂåÅö»þ¤Î´ÏºÜµ¡¤È¤·¤Æ¤Ï¤«¤Ê¤êÂç·¿¤Îµ¡ÂΤ˻ž夬¤Ã¤¿¡£

Áà½ÄÀÊÇØÌ̤ε¡½Æ¤ÏÁ´¼þÀû²ó²Äǽ¤Ê½ÆÅã¼°¤È¤Ê¤ê¡¢µ¡Âβ¼Ì̤ˤâ°ú¤­¹þ¤ß¼°¤Îµ¡½Æ¤¬È÷¤¨¤é¤ì¡¢µ¡Æâ¤ÏÊ£¿ô¤Î³¬Áع½Â¤¤È¤Ê¤Ã¤Æ¤¤¤ë¤Ê¤É¡¢ÁÐȯÂ緿Φ¾åÇú·âµ¡¤Ë»÷¤¿°Û¿§¤Ê¹½Â¤¤ò»ý¤Ã¤Æ¤¤¤¿¡£

Ëܵ¡¤ÏÍë·âµ¡¤È¤·¤Æ¤ÏÀ¤³¦ºÇ¹â¿å½à¤ÎÀ­Ç½*3¤ò¸Ø¤ê¡¢ÆüËܳ¤·³¤ÎÎíÀ郎¥¢¥á¥ê¥«¤ÎF6F¤Ë¤è¤Ã¤ÆÎôÀª¤ËÄɤ¤¹þ¤Þ¤ì¤¿1943ǯ°Ê¹ß¤Î³¤Àï¤Ç³èÌö¤·¡¢Àï´Ï¡ÖÂçÏ¡ס¦¡ÖÉð¢¡×¤ä¶õÊì¡Ö¿ðÄá¡×¤Ê¤É¿¿ô¤ÎÆüËܴϤò·âÄÀ¤¹¤ëÀï²Ì¤òµó¤²¤¿¡£

Àï¸å¤Ë¤Ï¤½¤ÎÅëºÜÎϤò³è¤«¤·¤ÆÂÐÀø¾¥²üµ¡¤È¤·¤Æ¤âÍѤ¤¤é¤ì¤¿¤¬¡¢Åö»þ¤Î¥ì¡¼¥À¡¼¤Ê¤É¤ÎÅŻҵ¡´ï¤ÈÂÐÀø¹¶·âÍѤÎʼÁõ¤ò1µ¡¤ËÅëºÜ¤¹¤ë¤³¤È¤ÏÈó¾ï¤Ëº¤Æñ¤À¤Ã¤¿¤¿¤á¡¢ÃµÃÎÀìÍѤε¡ÂΡʥϥ󥿡¼¡Ë¤È¹¶·âÀìÍѤε¡ÂΡʥ­¥é¡¼¡Ë¤ËʬΥ¤·¤Æ±¿ÍѤµ¤ì¤Æ¤¤¤¿¡Ê¤¤¤ï¤æ¤ë¥Ï¥ó¥¿¡¼¥­¥é¡¼¡Ë¡£

¤³¤ÎÂÎÀ©¤Ï¡¢°ìµ¡¤ÇõÃΤȹ¶·â¤Î¤Ç¤­¤ë¥°¥é¥Þ¥óS-2¡Ö¥È¥é¥Ã¥«¡¼¡×¤Î¼ÂÍѲ½¤Þ¤Ç³¤±¤é¤ì¤Æ¤¤¤¿¡£

¤Þ¤¿¡¢Ëܵ¡¤Ï¥¤¥®¥ê¥¹³¤·³¹Ò¶õÂâ¤Ç¤â¡Ö¥¿¡¼¥Ý¥ó¡×¤Î̾¾Î¤Ç»ÈÍѤµ¤ì¤¿¡£
ÂçÀï¸å¤Ï¥¢¥á¥ê¥«³¤·³¤Î;¾êµ¡¤¬¥¤¥®¥ê¥¹¤Î¾¡¢¥¦¥ë¥°¥¢¥¤¡¢¥«¥Ê¥À¡¢¥Õ¥é¥ó¥¹¡¢¥ª¥é¥ó¥À¡¢ÆüËܡʳ¤¾å¼«±ÒÂâ¡Ë¤Ë¶¡Í¿¤µ¤ì¤¿¡£

ÂçÀï¸å¤Ï̱´Ö¤Ë¤âʧ¤¤²¼¤²¤é¤ì¡¢Í¢Á÷µ¡¤äÍ·Í÷ÍÑιµÒµ¡¡¢¹Ò¶õµ¡¶õ»£ÍѤλ£±Æµ¡¡¢¶õÃæ¾Ã²Ðµ¡¤ËžÍѤµ¤ì¤¿¡£
¸½ºß¤Ç¤â¡¢¿ôµ¡¤¬¸Ä¿Í¤Î¼ê¤Ë¤è¤Ã¤ÆÈô¹Ô²Äǽ¤Ê¾õÂÖ¤ËÊݤ¿¤ì¤Æ¤ª¤ê¡¢¹Ò¶õ¥·¥ç¡¼¤Î¥Õ¥é¥¤¥È¥Ç¥â¤Ê¤É¤Ç¸«¤ë»ö¤¬½ÐÍè¤ë¡£

¥¹¥Ú¥Ã¥¯¥Ç¡¼¥¿¡ÊTBF¡Ë

¾è°÷3̾
Á´Ä¹12.195m
Á´¹â5m
ÍãÉý16.51m
ÍãÌÌÀÑ46­Ö
Íã·¿root¡§NACA 23015
tip¡§NACA 23009
Áí½ÅÎÌ7,047kg
dzÎÁÍÆÎÌ1,249L¡ÊÃæ±ûÉô¥¤¥ó¥Æ¥°¥é¥ë¥¿¥ó¥¯¡Ë+220L¡ß2´ð¡Ê¥É¥í¥Ã¥×¥¿¥ó¥¯¡Ê¼çÍã²¼¡Ë¡Ë
1,041L¡ÊÇúÃÆÁÒ¥Õ¥§¥ê¡¼¥¿¥ó¥¯¡Ë
¥ª¥¤¥ë¡§121L
¥¨¥ó¥¸¥ó¥é¥¤¥ÈR-2600-8¡Ö¥Ä¥¤¥ó¡¦¥µ¥¤¥¯¥í¥ó¡×¶õÎäÀ±·¿14µ¤Åû¡ß1´ð
¡Ê½ÐÎÏ1,700hp¡Ê1,300kW¡Ë¡Ë
¥×¥í¥Ú¥é¥Ï¥ß¥ë¥È¥ó¡¦¥¹¥¿¥ó¥À¡¼¥É¼ÒÀ½3ËçæÂÄꮥץí¥Ú¥é
ºÇ¹â®ÅÙ447km/h
½ä¹Ò®ÅÙ346km/h
¹Ò³µ÷Î¥1,456km¡Ê½ä¹Ò®ÅÙ»þ¡Ë
¾å¾º¸ÂÅÙ6,900m
¾å¾ºÎ¨5.46m/s
ÇÏÎϲٽÅ0.18kW/kg
¸ÇÄêÉðÁõ¥Ö¥í¡¼¥Ë¥ó¥°M1919 7.62mmµ¡´Ø½Æ¡ß1Äò¡Êµ¡¼ó¡Ê½é´ü·¿¡Ë¡Ëor M2 12.7mmµ¡´Ø½Æ¡ß2Ìç¡Ê¼çÍã¡Ë
¥Ö¥í¡¼¥Ë¥ó¥°M2 12.7mmµ¡´Ø½Æ¡ß1Ìç¡ÊÇØÌÌ¡Ë
¥Ö¥í¡¼¥Ë¥ó¥° M1919 7.62mmµ¡´Ø½Æ¡ß1Äò¡ÊÊ¢Éô¡Ë
ÇúÁõ3.5¥¤¥ó¥Á¡Ê89mm¡Ë"FFAR"¡¢5¥¤¥ó¥Á¡Ê127mm¡Ë"FFAR"¤Þ¤¿¤Ï"HVAR"¥í¥±¥Ã¥ÈÃÆ¡ß8ȯ
2,000lb¡Ê907kg¡Ë¤Þ¤Ç¤ÎÇúÃƤޤ¿¤Ï
Mk.13¹Ò¶õµûÍë¤Þ¤¿¤ÏMk.24µ¡Íë¡ÊFido¡Ë¡Ê¼ÂÂ֤ϲ»¶ÁͶƳÂÐÀøµûÍë¡Ë¡ß1ȯ


¥Ð¥ê¥¨¡¼¥·¥ç¥ó¡Ê¥«¥Ã¥³Æâ¤ÏÀ¸»º¡¦²þ½¤µ¡¿ô¡Ë

TBF

  • XTBF-1¡Ê2µ¡¡Ë¡§
    R-2600-8¡Ö¥Ä¥¤¥ó¡¦¥µ¥¤¥¯¥í¥ó¡×¥¨¥ó¥¸¥ó¡Ê1,700hp¡Ê1,300kW¡Ë¡Ë¤òÅëºÜ¤·¤¿¥×¥í¥È¥¿¥¤¥×¡£
    2¹æµ¡¤Ç¤Ï¥É¡¼¥µ¥ë¥Õ¥£¥ó?¤òºÎÍѤ·¤¿¡£

    • TBF-1¡Ê1,526µ¡¡Ë¡§
      ¥×¥í¥È¥¿¥¤¥×2¹æµ¡¤ò¥Ù¡¼¥¹¤Ë¤·¤¿½é´üÀ¸»º·¿¡£

    • TBF-1C¡Ê765µ¡¡Ë¡§
      TBF-1¤Î¼çÍã¤Ë12.7mmµ¡´Ø½Æ¤òÅëºÜ¤·¡¢Ç³ÎÁÅëºÜÎ̤òÁý²Ã¤µ¤»¤¿·¿¡£

    • TBF-1B¡§
      ¥¤¥®¥ê¥¹¸þ¤±¥¢¥ô¥§¥ó¥¸¥ã¡¼­µ¤Î¸Æ¾Î¡£

    • TBF-1D¡§
      TBF-1¤Î±¦¼çÍãÁ°±ï¤Î¥ì¥É¡¼¥à¤Ë¥»¥ó¥Á¥á¥È¥ê¥Ã¥¯¥ì¡¼¥À¡¼¤òÅëºÜ¤·¤¿·¿¡£

    • TBF-1CD¡§
      TBF-1C¤Î±¦¼çÍãÁ°±ï¤Î¥ì¥É¡¼¥à¤Ë¥»¥ó¥Á¥á¥È¥ê¥Ã¥¯¥ì¡¼¥À¡¼¤òÅëºÜ¤·¤¿·¿¡£

    • TBF-1E¡§
      ÅŻҵ¡´ï¤òÄɲä·¤¿·¿¡£

    • TBF-1J¡§
      °­Å·¸õ¤ËÂбþ¤Ç¤­¤ëÁõÈ÷¤òÅëºÜ¤·¤¿·¿¡£

    • TBF-1L¡§
      ÇúÃÆÁҤ˳ÊǼ¼°¥µ¡¼¥Á¥é¥¤¥È¤òÅëºÜ¤·¤¿·¿¡£

    • TBF-1P¡§
      ¼Ì¿¿Ä廡µ¡·¿¡£

    • TBF-1CP¡§
      TBF-1C¤Î¼Ì¿¿Ä廡µ¡·¿¡£

  • XTBF-2¡§
    TBF-1¤Î¥¨¥ó¥¸¥ó¤òXR-2600-10¡Ê½ÐÎÏ1,900hp¡Ê1,400kW¡Ë¡Ë¤Ë´¹Áõ¤·¤¿·¿¡£

  • XTBF-3¡§
    TBF-1¤Î¥¨¥ó¥¸¥ó¤òR-2600-20¡Ê½ÐÎÏ1,900hp¡Ê1,400kW¡Ë¡Ë¤Ë´¹Áõ¤·¤¿·¿¡£

    • TBF-3¡§
      XBTF-3¤ÎÎÌ»º·¿¡£·×²è¤Î¤ß¡£

TBM

  • TBM-1¡Ê550µ¡¡Ë¡§
    ¥¼¥Í¥é¥ë¡¦¥â¡¼¥¿¡¼¥º¡ÊGM¡Ë¼ÒÀ½TBF-1¡£

    • TBM-1C¡Ê2,336µ¡¡Ë¡§
      ¥¼¥Í¥é¥ë¡¦¥â¡¼¥¿¡¼¥º¡ÊGM¡Ë¼ÒÀ½TBF-1C¡£

    • TBM-1D¡§
      TBM-1¤Î±¦¼çÍãÁ°±ï¤Î¥ì¥É¡¼¥à¤Ë¥»¥ó¥Á¥á¥È¥ê¥Ã¥¯¥ì¡¼¥À¡¼¤òÅëºÜ¤·¤¿·¿¡£

    • TBM-1E¡§
      ÅÅ»ÒÁõÈ÷¤òÄɲä·¤¿·¿¡£

    • TBM-1J¡§
      Á´Å·¸õÂбþ·¿¡£

    • TBM-1L¡§
      ÇúÃÆÁҤ˳ÊǼ¼°¥µ¡¼¥Á¥é¥¤¥È¤òÅëºÜ¤·¤¿·¿¡£

    • TBM-1P¡§
      ¼Ì¿¿Ä廡µ¡·¿¡£

    • TBM-1CP¡§
      TBM-1C¤Î¼Ì¿¿Ä廡µ¡·¿¡£

  • TBM-2¡Ê1µ¡¡Ë¡§
    TBM-1¤Î¥¨¥ó¥¸¥ó¤òXR-2600-10¤Ë´¹Áõ¤·¤¿·¿¡£

  • XTBM-3¡Ê4µ¡¡Ë¡§
    TBM-1C¤Î¥¨¥ó¥¸¥ó¤òR-2600-20¤Ë´¹Áõ¤·¤¿·¿¡£

    • TBM-3¡Ê4,011µ¡¡Ë¡§
      ¥Þ¥¤¥Ê¡¼¥Á¥§¥ó¥¸¥â¥Ç¥ë¡£
      ¼çÍã²¼¤Ë¥Ï¡¼¥É¥Ý¥¤¥ó¥È¤ÎÄɲä䥨¥ó¥¸¥ó¤Î¥¢¥Ã¥×¥°¥ì¡¼¥É¤ò¹Ô¤Ã¤¿¡£

    • TBM-3D¡§
      ±¦¼çÍãÁ°±ï¤Î¥ì¥É¡¼¥à¤Ë¥»¥ó¥Á¥á¥È¥ê¥Ã¥¯¥ì¡¼¥À¡¼¤òÅëºÜ¤·¤¿·¿¡£

    • TBM-3E¡Ê646µ¡¡Ë¡§
      µ¡Âι½Â¤¤ò¶¯²½¤·¡¢Ê¢Éôµ¡½Æ¤òűµî¡¢º÷Ũ¥ì¡¼¥À¡¼¤òÅëºÜ¤·¤¿·¿¡£

    • TBM-3H¡§
      ¿å¾åÁܺ÷¥ì¡¼¥À¡¼¤òÅëºÜ¤·¤¿·¿¡£

    • TBM-3J¡§
      Á´Å·¸õÂбþ·¿¡£

    • TBM-3L¡§
      ÇúÃÆÁҤ˳ÊǼ¼°¥µ¡¼¥Á¥é¥¤¥È¤òÅëºÜ¤·¤¿·¿¡£

    • TBM-3M¡§
      ¡Ö¥¿¥¤¥Ë¡¼¡¦¥Æ¥£¥à¡×¥í¥±¥Ã¥ÈÃƤòÅëºÜ¤Ç¤­¤ë¤è¤¦¤Ë¤·¤¿·¿¡£

    • TBM-3N¡§
      Ìë´Ö¹¶·âµ¡·¿¡£

    • TBM-3P¡§
      ¼Ì¿¿Ä廡µ¡·¿¡£

    • TBM-3Q¡§
      ÅÅ»ÒÀïÍÑÁõÈ÷¤òÅëºÜ¤·¤¿·¿¡£

    • TBM-3R¡§
      7¿Í¾è¤ê´Ï¾åÍ¢Á÷µ¡·¿¡£

    • TBM-3S¡§
      ÂÐÀø¹¶·âµ¡·¿¡£

    • TBM-3U¡§
      ÈÆÍÑ¡¦É¸Åªµ¡·¿¡£

    • TBM-3W¡§
      Ê¢Éô¥ì¥É¡¼¥à¤ËAN/APS-20?¥ì¡¼¥À¡¼¤òÅëºÜ¤·¤¿·¿¡£

  • XTBM-4¡Ê3µ¡¡Ë¡§
    µÞ¹ß²¼Çú·â·óÍѤΥץí¥È¥¿¥¤¥×¡£
    TBM-3E¤ò¥Ù¡¼¥¹¤Ë¡¢Ãæ±ûÉô¤ÎÊ䶯¤äÀޤꤿ¤¿¤ßµ¡¹½¤ÎÊѹ¹¤Ê¤ÉÍã¤Î²þ¤¤ò¹Ô¤Ã¤¿¡£

    • TBM-4¡Ê2,141µ¡¡Ë¡§
      XBTM-4¤ÎÎÌ»º·¿¡£ÆüËܤÎÇÔÀï¤Ë¤è¤ê¥­¥ã¥ó¥»¥ë¡£

¥¤¥®¥ê¥¹³¤·³¸þ¤±

  • ¥¿¡¼¥Ý¥óGR.­µ¡Ê¥¢¥ô¥§¥ó¥¸¥ã¡¼Mk.­µ¡Ë¡Ê400µ¡¡Ë¡§
    ¥¤¥®¥ê¥¹³¤·³¸þ¤±TBF-1¤Î̾¾Î¡£

  • ¥¢¥ô¥§¥ó¥¸¥ã¡¼ Mk.­¶¡Ê334µ¡¡Ë¡§
    ¥¤¥®¥ê¥¹³¤·³¸þ¤±TBM-1/TBM-1C¤Î̾¾Î¡£

  • ¥¢¥ô¥§¥ó¥¸¥ã¡¼ Mk.­·¡Ê222µ¡¡Ë¡§
    ¥¤¥®¥ê¥¹³¤·³¸þ¤±TBM-3¤Î̾¾Î¡£

  • ¥¢¥ô¥§¥ó¥¸¥ã¡¼ Mk.­¸¡Ê70µ¡¡Ë¡§
    ¥¤¥®¥ê¥¹³¤·³¸þ¤±TBM-3S¤Î̾¾Î¡£¥­¥ã¥ó¥»¥ë¡£

  • ¥¢¥ô¥§¥ó¥¸¥ã¡¼ AS4¡§
    Àï¸å¤ËǼÆþ¤µ¤ì¤¿TBM-3E¤Î¥¤¥®¥ê¥¹³¤·³¤Ç¤Î¸Æ¾Î¡£

  • ¥¢¥ô¥§¥ó¥¸¥ã¡¼ AS5¡§
    Àï¸å¤ËǼÆþ¤µ¤ì¤¿TBM-3S¤Î¥¤¥®¥ê¥¹³¤·³¤Ç¤Î¸Æ¾Î¡£±Ñ¹ñÀ½¤ÎÁõÈ÷¤òÅëºÜ¡£

  • ¥¢¥ô¥§¥ó¥¸¥ã¡¼ AS6¡§
    TBM-3S¤Î¥¤¥®¥ê¥¹³¤·³¤Ç¤Î¸Æ¾Î¡£±Ñ¹ñÀ½¤ÎÁõÈ÷¤òÅëºÜ¡£

¥«¥Ê¥À³¤·³¸þ¤±

  • ¥¢¥ô¥§¥ó¥¸¥ã¡¼ AS3¡Ê98µ¡¡Ë¡§
    ÂÐÀøǤ̳ÍѤ˲þ¤¤·¤¿·¿¡£ÇØÉôµ¡½Æ¤Ïűµî¤µ¤ì¤Æ¤¤¤ë¡£

  • ¥¢¥ô¥§¥ó¥¸¥ã¡¼ AS3M¡§
    AS3¤ËMAD¥Ö¡¼¥à¤òÁõÈ÷¤·¤¿·¿¡£

  • ¥¢¥ô¥§¥ó¥¸¥ã¡¼ Mk.3W2¡Ê8µ¡¡Ë¡§
    TBM-3W¤Ë»÷¤¿µ¡ÂΡ£Ê¢Éô¥ì¥É¡¼¥à¤¬Â礭¤¤¡£


*1 ¤Ê¤ª¡¢ÆüËܸì¤Îʸ̮¤Ç¤Ï¡Ö´Ï¾å¹¶·âµ¡¡×¤È¤µ¤ì¤Æ¤¤¤ë¤¬¡¢ÆüËܤδϾ并·âµ¡¤¬¡ÖήÀ±¡×°Ê³°µÞ¹ß²¼Çú·â¤ÎǽÎϤ¬¤Ê¤«¤Ã¤¿¤Î¤ËÂФ·¡¢Ëܵ¡¤Ë¤ÏµÞ¹ß²¼Çú·â¤Î²Äǽ¤Êµ¡ÂΤ⤢¤Ã¤¿¡£
*2 ¤½¤Î¤¿¤á¡¢¥¢¥á¥ê¥«¤Ç¤Ï´Ï¾åÇú·âµ¡¤ËÄ廡µ¡¤ÎÌò³ä¤ò·ó̳¤µ¤»¤Æ¤¤¤¿¡£
*3 Í£°ìÂй³¤Ç¤­¤¿¤Î¤ÏÆüËܤζ強¼°´Ï¾å¹¶·âµ¡¤Î¤ß¤Ç¤¢¤Ã¤¿¤¬¡¢¤½¤ì¤è¤ê¤âÀ­Ç½¤¬Í¥¤ì¤Æ¤¤¤¿¡£

¥È¥Ã¥× ÊÔ½¸ Åà·ë º¹Ê¬ ¥Ð¥Ã¥¯¥¢¥Ã¥× źÉÕ Ê£À½ ̾Á°Êѹ¹ ¥ê¥í¡¼¥É ¿·µ¬ °ìÍ÷ ñ¸ì¸¡º÷ ºÇ½ª¹¹¿·¥Ø¥ë¥×   ºÇ½ª¹¹¿·¤ÎRSS