Archive for July 24th, 2017

A inceput modernizarea fregatelor

Lunga asteptare a luat sfarsit si e momentul sa aflam ce echipamente noi vor fi montate pe fregatele T22R: rachete Exocet sau NSM, MICA sau ESSM, radare…MK41?

De fapt, primele agregate confirmate sint… motoarele.

Da, RoNavy incepe remotorizarea fregatelor.

Ca o readucere aminte, fregatele T22 Batch 2 au instalate cate patru turbine, doua pentru mars, de tip RollsRoyce Tyne si doua pentru sprint, RR Olympus intr-o configuratie COGOG. Tyne, ca despre ele va fi vorba, au fost niste motoare navale relativ populare, fiind instalate nu numai pe fregatele T22 si distrugatoarele T42 ale RoyalNavy dar si pe fregatele Kortenaer si Jacob van Heemskerck olandeze cat si pe distrugatoarele japoneze Hatsuyuki.

Pe langa Rolls-Royce, au fost produse in diverse grade de integrare si de catre MAN (acum MTU) in Germania, Hispano-Suiza (acum SNECMA) in Franta si Kawasaki in Japonia. Deci sint departe de a fi niste raritati.

Si totusi, printr-o “minune”, romanii au avut probleme in a le intretine, RoNavy recurgand chiar la COMOTI pentru operatiuni de reparatie. Exceptionalismul romanesc loveste din nou. E probabil in legatura cu densitatea aerului si salinitatea Marii Negre. Sau doar cu un contract defectuos de intretinere.

Continuare…

Americanii schimba tot

Vestitorul de vesti proaste, cercetas verde cu PKP - Sursa: Vitaly V. Kuzmin via Wikipedia.org

Vestitorul de vesti proaste, cercetas verde cu PKP – Sursa: Vitaly V. Kuzmin via Wikipedia.org

US Army se pregateste sa urmeze exemplul USMC, cel putin partial, prin renuntarea la mitraliera usoara M249 SAW din dotarea grupei de infanterie. Daca USMC a ramas la calibrul 5.56mm prin introducerea pustii-mitraliera M27 IAR (varianta a HK416), US Army pare a inclina spre o schimbare a calibrului spre ceva mai puternic. Solicitarea facuta publica pe FedBozzOpps referitoare la Next Generation Squad Automatic Rifle nu specifica un anumit calibru insa bataia eficace ar trebui sa fie mai mare de 600m, obiectivul fiind 1200m, ceea ce, in mod normal, ar exclude 5.56mm. Nu e clar nici daca alimentarea se va face tot cu banda sau prin incarcatoare tip sector insa un indiciu ar fi faptul ca se cauta o arma cu ergonomia unei carabine:

The Next Generation Squad Automatic Rifle (NGSAR) is a single incremental program to meet future force warfighting needs. It is the planned replacement for the M249 Squad Automatic Weapon (SAW) in Brigade Combat Teams (BCT) and select support units during the next decade. It will combine the firepower and range of a machine gun with the precision and ergonomics of a carbine, yielding capability improvements in accuracy, range, and lethality. The weapon will be lightweight and fire lightweight ammunition with improved lethality. The NGSAR will help to reduce the heavy load that burdens Soldiers and that has a significant negative impact on their mobility, survivability, and firing accuracy. Soldiers will employ the NGSAR against close and extended range targets in all terrains and conditions. The NGSAR will be compatible with and dependent on legacy optics and night vision devices to meet required capabilities. It will also be compatible with the Small Arms Fire Control system currently in development and possess back-up sights. It is anticipated the NGSAR support concept will be consistent with (comparable to) that of the predecessor M249 SAW involving the Army two level field and sustainment maintenance system. The NGSAR will achieve overmatch by killing stationary, and suppressing moving, threats out to 600 meters (T), and suppressing all threats to a range of 1200 meters (O).

Continuare…