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23 mars 2005
Vietnam''s Su-22 fleet upgraded
Vietnam is currently upgrading a number of Sukhoi Su-22 ground-attack aircraft, acquired last year from the Czech Republic, in Ukraine.
Sources monitoring the Vietnam People''s Army Air Force have conflicting views, however, of how many aircraft are involved. Some are convinced Hanoi obtained 10 platforms; others say the initial deal was for four.
The aircraft are known to be configured as tandem combat trainers. The Czech Republic Air Force retired its final 10 Su-22 tactical bombers in early 2002 due to obsolescence, having grounded 13 of the aircraft in October 2001 because of structural fatigue.
According to one source, Prague sold 16 Su-22M4s and four Su-22UM3Ks to a private Czech trading company and the latter have since been exported.
The Su-22M4 is a single-seat aircraft and the Su-22UM3K a twin-seat variant (the export version of the Su-17UM3).
The upgrade programme for the Su-22UM3Ks, launched around the middle of last year, includes adapting the second seat to accommodate a mission specialist. This is mainly aimed at retrofitting the aircraft to serve as a platform for anti-ship missiles, but no further details are known.
It appears the Su-22 programme is intended to cushion the cost of Vietnam''s air force build-up, which has seen Hanoi focus on the far more expensive Su-27 interceptor/ground-attack aircraft and Su-30 multirole fighter in recent years. The air force has seven Su-27SK and five Su-27UBK/Su-30K air-superiority fighters. These, too, were expected to undergo an upgrade as Hanoi requires them to operate the Vympel R-77 (AA-12) beyond-visual-range air-to-air missile, the Vympel Kh-29 (AS-14) air-to-surface missile, the Kh-31 (AS-17) anti-ship missile and the Kh-59M (AS-18) air-to-surface missile.
Vietnam ordered four Su-30MK multirole fighters in late 2003 at a cost of $ư120 million,and reports indicate that eight more could be obtained.
Source : JANE''S DEFENCE WEEKLY - MARCH 23, 2005

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Tôi đã gửi số Jane''s Defence Weekly - Mar-30-05 cho các bạn rồi.
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