. "La celata di prua \u00E8 una caratteristica di alcune navi, in particolare traghetti Roll-on/Roll-off e traghetti ferroviari, che permette alla parte superiore della prua di articolare su e gi\u00F9, fornendo l'accesso alla rampa di carico e alla piattaforma di stoccaggio. Nel corso degli ultimi 25 anni le celate di prua sono state progressivamente soppiantate dai portelloni di prua che agiscono come le valve di una conchiglia e si ritengono essere pi\u00F9 sicuri delle celate prodiere. In una celata di prua, le forze che agiscono sulla celata in seguito all'impatto delle onde, vengono assorbite dalle cerniere e dalle serrature che possono cedere in seguito a sollecitazioni particolarmente intense. Con i portelloni di prua, le forze delle onde vengono assorbite dalla circostante sovrastruttura di prua. Il cedimento della celata di prua ha causato la perdita di alcune navi, come il traghetto Estonia."@it . "Ein Bugvisier, gew\u00F6hnlich auch Bugklappe genannt, ist ein schwenkbarer Verschluss der \u00D6ffnung des Schiffsbugs einer RoRo-F\u00E4hre, das ge\u00F6ffnet die Ein- und Ausfahrt von Fahrzeugen zul\u00E4sst. \u00DCblicherweise schwenken diese wie das Visier eines Schutzhelms entweder einteilig nach oben oder zweigeteilt zur Seite. Das sogenannte Atlantikschloss (auch: Atlantiksicherung) sichert das Bugvisier durch seitliche Bolzen gegen unbeabsichtigtes \u00D6ffnen. Auch wird das Schiffinnere auf See bei einigen Schiffen durch ein Schott, das in der Regel als Fahrzeugrampe dient, oder ein zus\u00E4tzliches Hochseeschott gegen Wassereintritt gesichert. Der Begriff Bugvisier ging bei den Schiffskatastrophen der Herald of Free Enterprise 1987 und der Estonia 1994 durch die Medien. In beiden F\u00E4llen f\u00FChrte Wassereintritt \u00FCber die Bug\u00F6ffnung zum Untergang der Schiffe, da die durchgehenden Autodecks nicht durch Schotten und voneinander getrennte, wasserdichte Sektionen gesichert waren. Teilweise verzichtete man danach bei Schiffsneubauten auf eine Bugklappe oder schwei\u00DFte vorhandene Bugvisiere zu. \n* Offenes einteiliges Bugvisier der Volcan de Taburiente \n* Offenes zweiteiliges Bugvisier der Stena Germanica \n* Sardinia Regina mit offener Bugklappe in Bastia \n* Anne-Marie am F\u00E4hranleger in Cuxhaven"@de . "Bow visor"@en . . "\u30D0\u30A6\u30D0\u30A4\u30B6\u30FC\uFF08Bow Visor\uFF09\u3082\u3057\u304F\u306F\u30D0\u30A6\u30C9\u30A2\uFF08Bow Door\uFF09\u306F\u3001\u8239\u9996\uFF08\u30D0\u30A6\uFF09\u306B\u8A2D\u3051\u3089\u308C\u308B\u30E9\u30F3\u30D7\u30A6\u30A7\u30A4\u3092\u4FDD\u8B77\u3059\u308B\u88C5\u7F6E\u3002\u4E0A\u65B9\u306B\u958B\u304F\u8DF3\u306D\u4E0A\u3052\u5F0F\u306E\u30D0\u30A4\u30B6\u30FC\u30C9\u30A2\u3068\u89B3\u97F3\u958B\u304D\u5F0F\u3084\u30B9\u30E9\u30A4\u30C9\u5F0F\u3067\u5DE6\u53F3\u306B\u958B\u304F\u30B5\u30A4\u30C9\u30AA\u30FC\u30D7\u30CB\u30F3\u30B0\u30C9\u30A2\u306B\u533A\u5206\u3055\u308C\u308B\u3002 \u6CE2\u6D6A\u306B\u3088\u308B\u8131\u843D\u3084\u3001\u4EBA\u70BA\u7684\u30DF\u30B9\u306B\u3088\u308B\u9589\u9396\u30DF\u30B9\u304C\u6D78\u6C34\u3092\u5F15\u304D\u8D77\u3053\u3057\u3001\u6C88\u6CA1\u30FB\u8EE2\u8986\u306E\u539F\u56E0\u3068\u306A\u308B\u3053\u3068\u304C\u77E5\u3089\u308C\u3066\u304A\u308A\u3001\u30A8\u30B9\u30C8\u30CB\u30A2\u3084\u30D8\u30E9\u30EB\u30C9\u30FB\u30AA\u30D6\u30FB\u30D5\u30EA\u30FC\u30FB\u30A8\u30F3\u30BF\u30FC\u30D7\u30E9\u30A4\u30BA\u306E\u4E8B\u6545\u539F\u56E0\u3068\u306A\u3063\u305F\u3002\u6C34\u5BC6\u3092\u78BA\u4FDD\u3057\u305F\u72EC\u7ACB\u3057\u305F\u5185\u6249\uFF08\u30A4\u30F3\u30CA\u30FC\u30C9\u30A2\uFF09\u3068\u7D44\u307F\u5408\u308F\u305B\u308B\u3053\u3068\u3067\u3001\u3053\u308C\u306B\u5BFE\u51E6\u3059\u308B\u3068\u5171\u306B\u3001\u885D\u7A81\u6642\u306E\u9694\u58C1\u3068\u3057\u3066\u6A5F\u80FD\u3055\u305B\u308B\u3053\u3068\u304C\u53EF\u80FD\u3067\u3042\u308B\u3002\u307E\u305F\u3001\u30A4\u30F3\u30CA\u30FC\u30C9\u30A2\u3092\u30E9\u30F3\u30D7\u30A6\u30A7\u30A4\u306E\u4E00\u90E8\u3068\u3057\u3066\u7D44\u307F\u8FBC\u3080\u8A2D\u8A08\u3082\u53EF\u80FD\u3068\u306A\u3063\u3066\u3044\u308B\u3002 \u56FD\u969B\u8239\u7D1A\u5354\u4F1A\u9023\u5408\u30671982\u5E74\u306B\u898F\u683C\u5316\u3055\u308C\u30011994\u5E74\u306E\u30A8\u30B9\u30C8\u30CB\u30A2\u306E\u4E8B\u6545\u3092\u53D7\u3051\u305F1995\u5E74\u306E\u6539\u8A02\u3067\u5185\u6249\u306E\u898F\u683C\u304C\u8FFD\u52A0\u3001\u305D\u306E\u5F8C2003\u5E74\u30012010\u5E74\u306B\u3082\u6539\u8A02\u304C\u884C\u308F\u308C\u3066\u3044\u308B\u3002"@ja . . "Bugvisier"@de . . . "Una visera de proa es una caracter\u00EDstica de algunos barcos, en particular los transbordadores y los barcos Ro-Ro, que permite que la proa se articule hacia arriba y hacia abajo, proporcionando acceso a la rampa de carga y la cubierta de almacenamiento cerca de la l\u00EDnea de flotaci\u00F3n. Sin embargo, en el dise\u00F1o moderno del ferry durante los \u00FAltimos 25 a\u00F1os, las viseras de proa han dado paso a las puertas con forma de almejas. En lugar de una visera grande, dos mitades se abren horizontalmente para revelar la rampa de carga y la plataforma. Se cree que estas son m\u00E1s seguras que las puertas con visera de proa, ya que en una puerta con visera de proa, las fuerzas que act\u00FAan sobre la puerta por el impacto de las olas son absorbidas por las bisagras y cerraduras, que pueden fallar. Con puertas de almeja, las fuerzas de las olas son absorbidas por la superestructura de proa circundante. Adem\u00E1s, en los buques de navegaci\u00F3n mar\u00EDtima deber\u00EDa haber puertas de proa interiores o \"puertas de mamparo de colisi\u00F3n\" detr\u00E1s de la rampa de carga. Estas puertas son una extensi\u00F3n superior del mamparo de colisi\u00F3n y act\u00FAan como una barrera secundaria contra el agua que ingresa a la cubierta del autom\u00F3vil, en caso de que fallaran las puertas de proa primarias. Se han registrado varios incidentes en los que las viseras de proa se han abierto parcialmente mientras el barco est\u00E1 en movimiento, lo que ha provocado que algunos barcos tengan que reforzar los mecanismos de bloqueo de la visera. La falla de la visera de proa tambi\u00E9n ha causado directamente la p\u00E9rdida de algunos barcos, como el M/S Estonia en 1994, con 852 muertos; o que el buque iniciara el trayecto con las puertas abiertas por error como el MS Herald of Free Enterprise en 1987, falleciendo 193 personas. \n* Datos: Q1002614 \n* Multimedia: Bow visors / Q1002614"@es . . "3946068"^^ . . . . . . . "Bogvisir \u00E4r den del av f\u00F6ren som \u00F6ppnas f\u00F6r att ta ombord last p\u00E5 till exempel f\u00E4rjor."@sv . . . . . . . . "\u30D0\u30A6\u30D0\u30A4\u30B6\u30FC\uFF08Bow Visor\uFF09\u3082\u3057\u304F\u306F\u30D0\u30A6\u30C9\u30A2\uFF08Bow Door\uFF09\u306F\u3001\u8239\u9996\uFF08\u30D0\u30A6\uFF09\u306B\u8A2D\u3051\u3089\u308C\u308B\u30E9\u30F3\u30D7\u30A6\u30A7\u30A4\u3092\u4FDD\u8B77\u3059\u308B\u88C5\u7F6E\u3002\u4E0A\u65B9\u306B\u958B\u304F\u8DF3\u306D\u4E0A\u3052\u5F0F\u306E\u30D0\u30A4\u30B6\u30FC\u30C9\u30A2\u3068\u89B3\u97F3\u958B\u304D\u5F0F\u3084\u30B9\u30E9\u30A4\u30C9\u5F0F\u3067\u5DE6\u53F3\u306B\u958B\u304F\u30B5\u30A4\u30C9\u30AA\u30FC\u30D7\u30CB\u30F3\u30B0\u30C9\u30A2\u306B\u533A\u5206\u3055\u308C\u308B\u3002 \u6CE2\u6D6A\u306B\u3088\u308B\u8131\u843D\u3084\u3001\u4EBA\u70BA\u7684\u30DF\u30B9\u306B\u3088\u308B\u9589\u9396\u30DF\u30B9\u304C\u6D78\u6C34\u3092\u5F15\u304D\u8D77\u3053\u3057\u3001\u6C88\u6CA1\u30FB\u8EE2\u8986\u306E\u539F\u56E0\u3068\u306A\u308B\u3053\u3068\u304C\u77E5\u3089\u308C\u3066\u304A\u308A\u3001\u30A8\u30B9\u30C8\u30CB\u30A2\u3084\u30D8\u30E9\u30EB\u30C9\u30FB\u30AA\u30D6\u30FB\u30D5\u30EA\u30FC\u30FB\u30A8\u30F3\u30BF\u30FC\u30D7\u30E9\u30A4\u30BA\u306E\u4E8B\u6545\u539F\u56E0\u3068\u306A\u3063\u305F\u3002\u6C34\u5BC6\u3092\u78BA\u4FDD\u3057\u305F\u72EC\u7ACB\u3057\u305F\u5185\u6249\uFF08\u30A4\u30F3\u30CA\u30FC\u30C9\u30A2\uFF09\u3068\u7D44\u307F\u5408\u308F\u305B\u308B\u3053\u3068\u3067\u3001\u3053\u308C\u306B\u5BFE\u51E6\u3059\u308B\u3068\u5171\u306B\u3001\u885D\u7A81\u6642\u306E\u9694\u58C1\u3068\u3057\u3066\u6A5F\u80FD\u3055\u305B\u308B\u3053\u3068\u304C\u53EF\u80FD\u3067\u3042\u308B\u3002\u307E\u305F\u3001\u30A4\u30F3\u30CA\u30FC\u30C9\u30A2\u3092\u30E9\u30F3\u30D7\u30A6\u30A7\u30A4\u306E\u4E00\u90E8\u3068\u3057\u3066\u7D44\u307F\u8FBC\u3080\u8A2D\u8A08\u3082\u53EF\u80FD\u3068\u306A\u3063\u3066\u3044\u308B\u3002 \u56FD\u969B\u8239\u7D1A\u5354\u4F1A\u9023\u5408\u30671982\u5E74\u306B\u898F\u683C\u5316\u3055\u308C\u30011994\u5E74\u306E\u30A8\u30B9\u30C8\u30CB\u30A2\u306E\u4E8B\u6545\u3092\u53D7\u3051\u305F1995\u5E74\u306E\u6539\u8A02\u3067\u5185\u6249\u306E\u898F\u683C\u304C\u8FFD\u52A0\u3001\u305D\u306E\u5F8C2003\u5E74\u30012010\u5E74\u306B\u3082\u6539\u8A02\u304C\u884C\u308F\u308C\u3066\u3044\u308B\u3002"@ja . . . . . "\u0412\u0456\u0437\u043E\u0440 (\u0441\u0443\u0434\u043D\u043E\u0431\u0443\u0434\u0443\u0432\u0430\u043D\u043D\u044F)"@uk . "Una visera de proa es una caracter\u00EDstica de algunos barcos, en particular los transbordadores y los barcos Ro-Ro, que permite que la proa se articule hacia arriba y hacia abajo, proporcionando acceso a la rampa de carga y la cubierta de almacenamiento cerca de la l\u00EDnea de flotaci\u00F3n. Se han registrado varios incidentes en los que las viseras de proa se han abierto parcialmente mientras el barco est\u00E1 en movimiento, lo que ha provocado que algunos barcos tengan que reforzar los mecanismos de bloqueo de la visera. \n* Datos: Q1002614 \n* Multimedia: Bow visors / Q1002614"@es . "1091311450"^^ . . . "\u0412\u0456\u0437\u043E\u0440, \u0430\u0431\u043E \u043A\u043E\u0437\u0438\u0440\u043E\u043A \u2014 \u043F\u0456\u0434\u0439\u043E\u043C\u043D\u0430 \u043D\u0430\u0434\u0432\u043E\u0434\u043D\u0430 \u0447\u0430\u0441\u0442\u0438\u043D\u0430 \u043F\u043E\u0440\u043E\u043C\u0430 \u0447\u0438 \u0432\u0456\u0439\u0441\u044C\u043A\u043E\u0432\u043E\u0433\u043E \u0434\u0435\u0441\u0430\u043D\u0442\u043D\u043E\u0433\u043E \u0441\u0443\u0434\u043D\u0430, \u0440\u043E\u0437\u043C\u0456\u0449\u0435\u043D\u0430 \u043D\u0430 \u043D\u043E\u0441\u0456, \u043A\u043E\u0440\u043C\u0456 \u0447\u0438 \u0432 \u0431\u043E\u0440\u0442\u0443 \u0441\u0443\u0434\u043D\u0430. \u041F\u0456\u0434\u0439\u043E\u043C \u0432\u0456\u0437\u043E\u0440\u0430 \u0437\u0430\u0431\u0435\u0437\u043F\u0435\u0447\u0443\u0454 \u043F\u0440\u043E\u0457\u0437\u0434 \u0442\u0440\u0430\u043D\u0441\u043F\u043E\u0440\u0442\u043D\u0438\u0445 \u0437\u0430\u0441\u043E\u0431\u0456\u0432 \u043D\u0430 \u043F\u0430\u043B\u0443\u0431\u0443 \u0434\u043B\u044F \u043F\u043E\u0434\u0430\u043B\u044C\u0448\u043E\u0433\u043E \u0442\u0440\u0430\u043D\u0441\u043F\u043E\u0440\u0442\u0443\u0432\u0430\u043D\u043D\u044F \u0431\u0435\u0437 \u0437\u0430\u043B\u0443\u0447\u0435\u043D\u043D\u044F \u0434\u043E\u0434\u0430\u0442\u043A\u043E\u0432\u043E\u0457 \u0432\u0430\u043D\u0442\u0430\u0436\u043E\u043F\u0456\u0434\u0439\u043E\u043C\u043D\u043E\u0457 \u0442\u0435\u0445\u043D\u0456\u043A\u0438 \u0442\u0430 \u043E\u0431\u043B\u0430\u0434\u043D\u0430\u043D\u043D\u044F. \u041D\u0430\u044F\u0432\u043D\u0456\u0441\u0442\u044C \u0432\u0456\u0437\u043E\u0440\u0430 \u0443 \u043F\u043E\u0440\u043E\u043C\u0430 \u0454 \u0432\u0438\u0437\u043D\u0430\u0447\u0430\u043B\u044C\u043D\u043E\u044E \u0445\u0430\u0440\u0430\u043A\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043A\u043E\u044E \u0434\u043B\u044F \u0439\u043E\u0433\u043E \u0442\u0438\u043F\u043E\u043B\u043E\u0433\u0456\u0457 \u00AB\u0440\u043E\u043B\u043A\u0435\u0440\u0430\u00BB."@uk . . "1548"^^ . "A bow visor is a feature of some ships, in particular ferries and roll-on/roll-off ships, that allows the bow to articulate up and down, providing access to the cargo ramp and storage deck near the water line. In modern ferry design over the last 25 years, though, bow visors have given way to . Instead of one large visor, two halves open horizontally to reveal the loading ramp and deck. These are believed to be safer than bow visor doors, as in a bow visor door, the forces acting on the door from the impact of the waves are absorbed by the hinges and locks, which may fail. With clam doors, the forces of the waves are absorbed by the surrounding bow superstructure. Furthermore, on seagoing vessels there should be inner bow doors or 'collision bulkhead doors' in place behind the loading ramp"@en . . . . . . "La celata di prua \u00E8 una caratteristica di alcune navi, in particolare traghetti Roll-on/Roll-off e traghetti ferroviari, che permette alla parte superiore della prua di articolare su e gi\u00F9, fornendo l'accesso alla rampa di carico e alla piattaforma di stoccaggio. Il cedimento della celata di prua ha causato la perdita di alcune navi, come il traghetto Estonia."@it . . . "\u041D\u043E\u0441\u043E\u0432\u043E\u0301\u0439 \u0432\u0438\u0437\u043E\u0301\u0440 (\u0430\u043D\u0433\u043B. visor \u2014 \u043A\u043E\u0437\u044B\u0440\u0451\u043A) \u2014 \u043F\u043E\u0434\u044A\u0451\u043C\u043D\u0430\u044F \u043D\u0430\u0434\u0432\u043E\u0434\u043D\u0430\u044F \u0447\u0430\u0441\u0442\u044C \u043F\u0430\u0440\u043E\u043C\u0430, \u0440\u0430\u0441\u043F\u043E\u043B\u043E\u0436\u0435\u043D\u043D\u0430\u044F \u043D\u0430 \u043D\u043E\u0441\u0443 \u0441\u0443\u0434\u043D\u0430. \u041F\u043E\u0434\u044A\u0451\u043C \u0432\u0438\u0437\u043E\u0440\u0430 \u043E\u0431\u0435\u0441\u043F\u0435\u0447\u0438\u0432\u0430\u0435\u0442 \u043F\u0440\u043E\u0435\u0437\u0434 \u0442\u0440\u0430\u043D\u0441\u043F\u043E\u0440\u0442\u043D\u044B\u0445 \u0441\u0440\u0435\u0434\u0441\u0442\u0432 \u043D\u0430 \u043F\u0430\u043B\u0443\u0431\u0443 \u0434\u043B\u044F \u0433\u0440\u0443\u0437\u043E\u0432. \u041E\u0442\u0440\u044B\u0432 \u043D\u043E\u0441\u043E\u0432\u043E\u0433\u043E \u0432\u0438\u0437\u043E\u0440\u0430 \u043D\u0430 \u043F\u0430\u0440\u043E\u043C\u0435 \u00AB\u042D\u0441\u0442\u043E\u043D\u0438\u044F\u00BB \u0432 \u043D\u043E\u0447\u044C \u043D\u0430 28 \u0441\u0435\u043D\u0442\u044F\u0431\u0440\u044F 1994 \u0433\u043E\u0434\u0430 \u0432 \u0411\u0430\u043B\u0442\u0438\u0439\u0441\u043A\u043E\u043C \u043C\u043E\u0440\u0435 \u043F\u043E \u043E\u0444\u0438\u0446\u0438\u0430\u043B\u044C\u043D\u043E\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u0441\u0442\u0430\u043B \u043F\u0440\u0438\u0447\u0438\u043D\u043E\u0439 \u0433\u0438\u0431\u0435\u043B\u0438 \u0441\u0443\u0434\u043D\u0430, \u0445\u043E\u0442\u044F \u0435\u0441\u0442\u044C \u0438 \u0434\u0440\u0443\u0433\u0438\u0435 \u043C\u043D\u0435\u043D\u0438\u044F."@ru . . . "Visera de proa"@es . "\u041D\u043E\u0441\u043E\u0432\u043E\u0439 \u0432\u0438\u0437\u043E\u0440"@ru . . . . "Celata di prua"@it . . . . "Bogvisir"@sv . "\u30D0\u30A6\u30D0\u30A4\u30B6\u30FC"@ja . "Ein Bugvisier, gew\u00F6hnlich auch Bugklappe genannt, ist ein schwenkbarer Verschluss der \u00D6ffnung des Schiffsbugs einer RoRo-F\u00E4hre, das ge\u00F6ffnet die Ein- und Ausfahrt von Fahrzeugen zul\u00E4sst. \u00DCblicherweise schwenken diese wie das Visier eines Schutzhelms entweder einteilig nach oben oder zweigeteilt zur Seite. \n* Offenes einteiliges Bugvisier der Volcan de Taburiente \n* Offenes zweiteiliges Bugvisier der Stena Germanica \n* Sardinia Regina mit offener Bugklappe in Bastia \n* Anne-Marie am F\u00E4hranleger in Cuxhaven"@de . "\u041D\u043E\u0441\u043E\u0432\u043E\u0301\u0439 \u0432\u0438\u0437\u043E\u0301\u0440 (\u0430\u043D\u0433\u043B. visor \u2014 \u043A\u043E\u0437\u044B\u0440\u0451\u043A) \u2014 \u043F\u043E\u0434\u044A\u0451\u043C\u043D\u0430\u044F \u043D\u0430\u0434\u0432\u043E\u0434\u043D\u0430\u044F \u0447\u0430\u0441\u0442\u044C \u043F\u0430\u0440\u043E\u043C\u0430, \u0440\u0430\u0441\u043F\u043E\u043B\u043E\u0436\u0435\u043D\u043D\u0430\u044F \u043D\u0430 \u043D\u043E\u0441\u0443 \u0441\u0443\u0434\u043D\u0430. \u041F\u043E\u0434\u044A\u0451\u043C \u0432\u0438\u0437\u043E\u0440\u0430 \u043E\u0431\u0435\u0441\u043F\u0435\u0447\u0438\u0432\u0430\u0435\u0442 \u043F\u0440\u043E\u0435\u0437\u0434 \u0442\u0440\u0430\u043D\u0441\u043F\u043E\u0440\u0442\u043D\u044B\u0445 \u0441\u0440\u0435\u0434\u0441\u0442\u0432 \u043D\u0430 \u043F\u0430\u043B\u0443\u0431\u0443 \u0434\u043B\u044F \u0433\u0440\u0443\u0437\u043E\u0432. \u041E\u0442\u0440\u044B\u0432 \u043D\u043E\u0441\u043E\u0432\u043E\u0433\u043E \u0432\u0438\u0437\u043E\u0440\u0430 \u043D\u0430 \u043F\u0430\u0440\u043E\u043C\u0435 \u00AB\u042D\u0441\u0442\u043E\u043D\u0438\u044F\u00BB \u0432 \u043D\u043E\u0447\u044C \u043D\u0430 28 \u0441\u0435\u043D\u0442\u044F\u0431\u0440\u044F 1994 \u0433\u043E\u0434\u0430 \u0432 \u0411\u0430\u043B\u0442\u0438\u0439\u0441\u043A\u043E\u043C \u043C\u043E\u0440\u0435 \u043F\u043E \u043E\u0444\u0438\u0446\u0438\u0430\u043B\u044C\u043D\u043E\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u0441\u0442\u0430\u043B \u043F\u0440\u0438\u0447\u0438\u043D\u043E\u0439 \u0433\u0438\u0431\u0435\u043B\u0438 \u0441\u0443\u0434\u043D\u0430, \u0445\u043E\u0442\u044F \u0435\u0441\u0442\u044C \u0438 \u0434\u0440\u0443\u0433\u0438\u0435 \u043C\u043D\u0435\u043D\u0438\u044F."@ru . . . "A bow visor is a feature of some ships, in particular ferries and roll-on/roll-off ships, that allows the bow to articulate up and down, providing access to the cargo ramp and storage deck near the water line. In modern ferry design over the last 25 years, though, bow visors have given way to . Instead of one large visor, two halves open horizontally to reveal the loading ramp and deck. These are believed to be safer than bow visor doors, as in a bow visor door, the forces acting on the door from the impact of the waves are absorbed by the hinges and locks, which may fail. With clam doors, the forces of the waves are absorbed by the surrounding bow superstructure. Furthermore, on seagoing vessels there should be inner bow doors or 'collision bulkhead doors' in place behind the loading ramp. These doors are an upper extension of the collision bulkhead and act as a secondary barrier against water entering the car deck, should the primary bow door(s) fail. There have been several recorded incidents in which bow visors have partially opened whilst the ship is in motion, resulting in some ships having to have their visor locking mechanisms strengthened. Bow visor failure has also directly caused the loss of some ships, such as the MS Estonia in 1994. Wikimedia Commons has media related to Bow visors."@en . . 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"Bogvisir \u00E4r den del av f\u00F6ren som \u00F6ppnas f\u00F6r att ta ombord last p\u00E5 till exempel f\u00E4rjor."@sv . .