U.S. and Russia trade blame over near collision in East Asian waters

/us-usa-russia-navy-incident-idUSKCN1T80

  • U.S. and Russia trade blame over near collision in East Asian waters - Reuters
    https://www.reuters.com/article/us-usa-russia-navy-incident-idUSKCN1T80LR
    https://www.youtube.com/watch?v=5QeNcKRkvDY

    Russia and the United States blamed each other for a near collision between their warships in East Asian waters on Friday with both countries accusing one another of dangerous and unprofessional behavior.

    Acting U.S. Defense Secretary Patrick Shanahan said Washington would lodge a formal diplomatic protest to Russia, while a senior Russian parliamentarian said such episodes could easily escalate tensions, which he said were already balanced “on a razor’s edge”.

    Russia’s Pacific Fleet said that the USS Chancellorsville, a guided-missile cruiser, had come within just 50 meters (165 feet) of the Russian destroyer Admiral Vinogradov which was forced to take emergency action to avoid a collision, Russian news agencies reported.

    They cited a Russian Pacific Fleet statement as saying the incident took place in the early hours of Friday morning in the eastern part of the East China Sea at a time when a group of Russian warships was on a parallel course with a U.S. naval strike group.

    The U.S guided-missile cruiser Chancellorsville suddenly changed course and cut across the path of the destroyer Admiral Vinogradov coming within 50 meters of the ship,” the statement said.

    A protest over the international radio frequency was made to the commanders of the American ship who were warned about the unacceptable nature of such actions,” it said.

    The U.S. Navy rejected that version of events, saying the behavior of the Russian ship had been “unsafe and unprofessional”.

    While operating in the Philippine Sea, a Russian Destroyer ... made an unsafe maneuver against USS Chancellorsville,” U.S. Seventh Fleet spokesman Commander Clayton Doss said.

    This unsafe action forced Chancellorsville to execute all engines back full and to maneuver to avoid collision.

    He described a Russian assertion that the U.S. ship had acted dangerously as “propaganda”. The Russian destroyer came within 50 to 100 feet of the Chancellorsville, he said, putting the safety of its crew and the ship at risk.

    Acting U.S. Defense Secretary Shanahan said Washington would formally protest.

    We’ll have military-to-military conversations with the Russians, and of course we’ll demarche them, but to me safety at the end of the day is the most important (part),” he told reporters outside the Pentagon.

    It will not deter us from conducting our operations.

    The incident comes days after Washington and Moscow sparred over an allegedly unsafe spy plane intercept by a Russian fighter jet near Syria.

    Alexei Pushkov, a senior Russian parliamentarian, said the near naval miss and other incidents like it were dangerous.

    We’re balancing on a razor’s edge,” he wrote on social media.

    Pour les Russes, ça s’est passé à l’est de la #Mer_de_Chine_orientale, pour les États-Uniens en #mer_des_Philippines


    WP


    WP

    • Vues de l’hélicoptère de l’USS Chancellorsville :


      et

      sur le site de la Marine états-unienne, ainsi que le communiqué.
      7th Fleet Statement on Unsafe Maneuver by Russian Destroyer
      /submit/display.asp ?story_id=109833

      PHILIPPINE SEA (NNS) — At approximately 11:45 am on June 7, 2019 while operating in the Philippine Sea, a Russian Destroyer (UDALOY I DD 572) made an unsafe maneuver against guided-missile cruiser USS Chancellorsville (CG-62), closing to approximately 50-100 feet putting the safety of her crew and ship at risk. 

      While USS Chancellorsville was recovering its helicopter on a steady course and speed when the Russian ship DD572 maneuvered from behind and to the right of Chancellorsville accelerated and closed to an unsafe distance of approximately 50-100 feet. This unsafe action forced USS Chancellorsville to execute all engines back full and to maneuver to avoid collision. 
      We consider Russia’s actions during this interaction as unsafe and unprofessional and not in accordance with the International Regulations for Preventing Collisions at Sea (COLREGS), “Rules of the Road,” and internationally recognized maritime customs.

    • Les images aériennes sont impressionnantes et montrent bien qu’on est passé tout près d’une collision. Ce dont ne rendent absolument pas compte les vidéos tournées de la passerelle du Chancellorsville où l’on ne voit que les deux navires en route parallèle. On jurerait presque qu’ils sont en manœuvre de ravitaillement à la mer…

      Les sillages montrent sans ambiguïté que c’est le navire russe qui a manœuvré in extremis. Tout le reste est difficile à interpréter.

      • d’après les É.-U., le Chancellorsville récupère son hélicoptère. Or d’après les images celui-ci est déjà à une distance certaine sur l’avant du navire. On pourrait imaginer qu’il a interrompu son approche (forcément par l’arrière) au vu de l’incertitude de la situation tactique, en ce cas je ne connais pas la procédure de dégagement, certainement une reprise d’altitude, mais dans quelle direction relative au navire ? Ça me paraît étonnant que l’hélico puisse se retrouver aussi loin sur l’avant aussi rapidement.

      Quant à l’application des règles de route du #RIPAM, elle ne me paraît pas aussi évidente que certains commentateurs l’affirment.
      • certes le russe est sur le tribord de l’états-unien, ce qui normalement oblige ce dernier à laisser le passage, mais,…
      • s’il est en route aviation pour l’appontement de son hélico (cf. premier point, douteux) il est alors en manœuvrabilité restreinte et il doit en arborer à son mat la marque (1 boule, 1 icône, 1 boule superposées .
      • on peut aussi se poser la question de l’angle entre les deux sillages. S’il fait moins de 67,5° (de nuit, le russe ne verrait que le feu de poupe, pas le feu de tribord), alors le navire russe est en situation de dépassement et c’est à lui de manœuvrer. Dans le cas contraire, c’est à l’américain. _A priori
      , on est autour des 45°, mais la projection de l’angle due à la perspective vue de l’hélico rend l’évaluation malaisée.
      • enfin, il est aussi difficile de juger si le Chancellorsville bat effectivement en arrière toute. L’absence de sillage sur la deuxième image, alors que sur la première on en perçoit un léger, ainsi que l’écume sur l’arrière du bateau vont dans ce sens, mais des nuages commencent à s’interposer. Par ailleurs, sur les vidéos on ne perçoit pas vraiment de changement de la vitesse relative entre les deux bateaux.

      Au vu de tout ça, il me semble bien que l’Admiral Vinogradov est effectivement navire rattrapant et que la manœuvre qu’il effectue est extrêmement tardive…