aqui transcrevo um post que fiz para um forum de lingua inglesa (daí estar em inglês)....
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Karel Doorman Frigates to PortugalKarel Doorman Frigate (Dutch M-Type)Portugal bought 2 M-type Dutch Frigates
VAN NES (F833) - to be delivered December 2008
VAN GALEN (F834) - to be delivered November 2009In May 2006, Portugal's National Defense Minister, Luís Amado, showed interest in buying two Karel Doorman class frigates to replace the two remaining frigates of the João Belo class in service with the Portuguese Navy — instead of buying two frigates of the Oliver Hazard Perry class, offered by the United States. A committee of the Portuguese government arrived at the Netherlands to evaluate the condition of two frigates to be bought.
In the end of May 2006, the Portuguese Government Official News Bulletin published the order for the creation of an Official Portuguese Navy's "technical team" to supervise the transfer of two M-Class Frigates to Portugal.
On November 1st 2006, the Portuguese Defense Minister Nuno Severiano Teixeira signed a contract for the purchase of the frigates Van Nes and Van Galen. Van Nes will be transfered to Portugal on December 1, 2008 and Van Galen on November 1, 2009
official newsDutch Navy WebSitehttp://www.marine.nl/nieuws/?article...fregatten.htmlDutch MoD WebSitehttp://www.mindef.nl/actueel/nieuws/...rportugal.aspxPortuguese Navy (in Portuguese only)http://www.marinha.pt/extra/revista/ra_ ... ag_17.htmlThe signing of the contractThis represents the culmination of a long process with the objective of replacing the remaining 2 FF frigates of the João Belo class from the 1960s, that started back in 2003, when the government at that date negociated with the USA the “granting” of 2 Oliver Hazard Perry frigates.
The original plan would be for Portugal to have 2 AAW escorts for the so-long-waited LPD , hence the original idea of the Perrys(although at the time the Navy was considering the Dutch AAW Jacob Van Hermeskerk twins, sold meanwhile to Chile):
http://en.wikipedia.org/wiki/Jacob_van_ ... ss_frigateLack of funds at that time did not allow for the purchase of the L-type (Dutch AAW Jacob Van Hermeskerk).
In May 2006 , after the Dutch Navy put on sale 2 more Karel Doorman frigates, Portugal grabbed the chance for both, in a successful move that will improve the Navy’s capacities much more than the OHP-choice would have done:
Because the LPD construction is being delayed (talks are now that perhaps it will be finished in 2014...), there was no more "urgent" need for AAW escorts and would mean that when the LPD joined the fleet, the 2 Perrys would be more than 30 years old...
COMPARISONS KD vs. OHP FRIGATES
-Age/obsolence: the OHPs that were supposed to come to Portugal were the
FFG-12 and the
FFG-14, the last 2 of the "short-hull" type.
They joined the USN in the early 80s and were decommisioned in 2003, being mouthballed since then in Bremerton, WA.
The 2 KDs are from 1993 and 1994(more than 10 years younger), are still in service with the Dutch Navy.
The transfer to Portugal will be a so-called "hot-transfer" as oposed to the OHPs which would be a "cold-transfer".
The Van Nes will still serve the Dutch Navy until end of 2007, then will be decommissioned from dutch service, will go for maintenance and service, shake-down and immediate transfer to Portugal. Same will happen with the Van Galen 11 monthes later.
-Cost:the amount of money spent on 2 modern frigates like the KD (240 million Euro) would be more or less the same necessary to reactive both Perrys (US would sell them both by 80 million Euro, but then and aditional 160 million Euro would have to be spent reactivating both)
Compability with current MEKO 200 Portuguese frigates (Vasco da Gama class):Many of the sistems in terms of sensors , radars, and armament are similar, making it easier for cinergy/ Crew Training & interchange.
Diference in armament is the CIWS (goakeeper in KD vs. Phalanx in VdG) and the gun (76mm in KD vs. creusot-loire 100mm in VdG), but Portuguese Navy personnel already trained for the 76mm (similar gun in the Perrys)
Maintenance/Repairs/Upgrades:Belgium also bought 2 frigates of this type , Netherlands still has 2 (the remainder 2 were sold to Chile). Portugal, Belgium and the Netherlands signed a joint agreement in terms of maintenace and upgrades.
If Portugal had gonne for the Perrys would be dependent of Spain (always a "tricky relationship", more so when it comes to Military Equipment) , sole european user of Perry frigates (Class F-80, Santa Maria)
Also the aomunt of spares for the OHPs is decrasing has the ships are being decommisioned from the USN, maintenance of the Mk-13 SM-1 AAM launcher is getting difficult , since the US Perry's are having their laucher removed.
Some Considerations:In general terms the sole advantage for the Perrys would have been that they are dedicated more to AAW , and the KDs are multi-purpose warships, but the SM-1 sistem is becoming
obsolete and most likely there would be no funds for an eventual upgrade.
Eventually the KDs can be upgraded to ESSM.
Also the investment in a plantform with 25 years might not be so justifiable has in 1 plantform with 10 years less.
Still to know is wherether the Portuguese Navy will acquire any additional helis (Lynx?) for the 2 KDs
Ideal would be at least 8 units (but we only have 5)
VdG can carry 2 Helis, but the KDs can only carry one (they were designed originally for the NH-90)
For easier comparison:KAREL DOORMAN CLASS
http://en.wikipedia.org/wiki/Karel_D..._class_frigateVASCO DA GAMA CLASS
http://en.wikipedia.org/wiki/Vasco_d..._class_frigateOLIVER HAZARD PERRY CLASS
http://en.wikipedia.org/wiki/Oliver_..._class_frigate(pennant number is speculative)