http://www.w54.biz/showthread.php?1372-Warship-Design&p=40984&viewfull=1

Written by Administrator

Friday, 27 September 2013 16:41

ALIDE learned exclusively that the Spanish Navantia that is offering three different configurations of frigates in international competition for Brazil's navy new surface ships, the Prosuper. In this program the MB intends to acquire a ship logistics, five patrol boats and five modern multipurpose frigates of about 6000 tons displacement.

In all their statements and communications to the Brazilian press, until now, the representatives of the Spanish company dedicated to repeatedly defend technological superiority and operational AEGIS air defense system produced by Lockheed American naval. This system equips the frigates previously sold to the navies of Spain and Australia. The message was that AEGIS was technically incomparable, so the best solution for the future requirements of MB.

These assertions, however, are always confronted with the inevitable subsequent questions about the real possibility of this system come to be offered with a package of effective technology transfer by the Americans. Transfer this that mainly could meet the demanding goals of the Ministry of Defense to train the national defense industry.

However, this week ALIDE found that Navantia kept an ace up his sleeve.

MB were initially offered to the frigate F-105 (latest version of the proven Álvaro de Bazán class) with the SPY-1D radar, and also a version of the Norwegian frigate Fridtjof Nansen, lighter and equipped with radar smaller and less capable of AEGIS family, the SPY-1F.

Both these ships were configured with long-range anti-aircraft missiles Raytheon Standard SM-2 and / or ESSM medium range.

The third proposal, totally unknown until now, completely broke this mold Hispanic American to marry a hull standard frigate F-105 with a new mast with antennas modular radar Australian CEAFAR. This naval AESA radar operates in S band and was developed by CEA Technologies, which, however, has an American Northrop Grumman's participation in this program. According to the documentation of Navantia, one maritime patrol aircraft can be identified by CEAFAR more than 350km away from the ship. This model, albeit with a lower range and power to the two options "thoroughbred" American, yet, would be more capable than any other radar proposed by other shipyards Prosuper participants for their ships.

With this third option also opened the door for the Aster missiles propose Navantia 15:30 corporation's European MBDA, the same model fitted to the two variants of the Aster missile frigate FREMM.Os, according to several sources ALIDE, appear to be far the preference technological MB. To successfully integrate this new missile system in the hull of the F-105's all part of the upgrading trajectory of Aster missiles (up-link) is controlled and coordinated by a transmitter module independent of radar supplied by MBDA own.

As part of the modernization program of half-life Anti-Ship Missile Defence (ASMD) the CEAFAR was installed together with the missiles Enhanced Sea Sparrow Missile in the Australian frigate HMAS Perth, one of the eight ANZAC MEKO class in service in that sea. The antennae of the complementary system of communication with U.S. missiles CEAMOUNT are not required to choose the Aster missile. The radar was in testing until July 2011 and in November of the same year it was announced the contract of 650 million Australian dollars for the modernization of other ships of this class. To fire the missile Aster hull standard F-105 will be modified by replacing the vertical launcher American Mk-41 by its European equivalent Sylver. Four Sylver A50 launchers can carry and launch up to 32 missiles per ship.

The system CEAFAR the innovation is based on a series of "tiles" of modular elements transmitters and receivers which can be combined freely with panels sized to fit in the subject's superstructure available in each type of vessel. In the installation chosen for the Australian Anzac frigates six antennas were used, each with 16 "tiles" transmitter / receiver. In the case of the hull of the F-105 would be used only four antennas, but with 64 tiles in each, totaling a power and scope is much larger.

แปลสั้นๆนะครับ Navantia เสนอขายเรือฟริเกตF100กับกองทัพเรือบราซิลโดยมี3ทางเลือกสำหรับอุปกรณ์เรดาร์ นั่นคือ

1 ติด SPY-1D radar เหมือนเรือF100ของตนเองและออสเตรเลีย ใช้กับจรวด SM-2 และ ESSM

1 ติด SPY-1F radar เหมือนเรือF310ของนอร์เวย์ (Fridtjof Nansen)ใช้กับจรวด SM-2 และ ESSM

3 ติด CEAFAR radar เข้าไปแทน โดยสินค้าจากออสเตรเลียตัวนี้มีระยะทำการที่350กม. และใช้งานร่วมกับจรวด Aster15/30 ได้ตามความต้องการของบราซิล โดยแผนนี้จะมีNorthrop Grummanเข้ามาเอี่ยวด้วย (เดาเอาเองมาเขาต้องการพัฒนาต่อยอดไปขายอเมริกากอีกที)

ทั้งนี้เนื่องมาจากความกังวลในเรื่องการถ่ายโอนความรู้เรื่องระบบเอจิสจากอเมริกาจะมีปัญหาและค่าใช้จ่ายที่สุง ทางเลือกที่3จึงเกิดขึ้นเพื่อให้บราซิลได้ตัดสินใจ