Two wild unofficial variations I found:
Cuban version (2x AK230, 1x AK257)
http://www.militar.org.ua/foro/industria-militar-cubana-t5322-795.html
Venezualan version (with Russian arms: 2x AK 630, 2x4 Kh35 Uran, 1x AK176, and associated radars MR123, 3Ts-25E Garpun-B)
http://www.militar.org.ua/foro/marina-de-guerra-revolucionaria-t866-1395.html
THis is as proposed to Malaysia (LIMA 2017):
http://www.navyrecognition.com/inde...re-opv-of-the-malaysian-coast-guard-mmea.html
"
DSBE is currently delivering a series of three 83 meters OPVS for the MMEA through a collaboration with TH Fabricators Sdn Bhd. This vessel is designed for border and EEZ surveillance, control, interception, search and rescue missions, disaster relief and humanitarian aid as well as counter piracy and smuggling activites, amongst others.
The new class of vessel displaces 1900 tonnes, has a speed of 20 knots, a range of 4500 nautical miles and may accomodate 91 persons.
The design of the OPV actually comes from Damen and is based on their "OPV 1800" series.
Navy Recognition learned during LIMA 2017 that similar to the smaller NGPC class, the OPV will be fitted with an Aselsan SMASH remote weapon station and Thales Fulmar UAV."
MMEA OPV will not come with a hangar for an embarked helicopter. It can land and refuel helicopters up to an AW139, however, as well as UAVs. No decision has been made on the UAV. It will be fitted with the Aselsan SMASH 30mm RWS on the A deck,two GPMGs on both sides just behind the bridge and a 50 caliber gun facing aft above the helo deck.
http://www.malaysiandefence.com/two-contenders-mrss/
LIMA 2017: MMEA unveils design of new helicopter-capable OPV platform
Ridzwan Rahmat, Langkawi - IHS Jane's Navy International
22 March 2017
The vessels are being ordered under a three-ship, MYR738.9 million (USD167 million) contract that was first announced in January 2017.
http://www.w54.biz/showthread.php?1...8df980531f00da75&p=73453&viewfull=1#post73453
General Info
http://defencetechnologyreview.real...spx?iid=131399&startpage=page0000028#folio=26
Damen Offshore Patrol Vessel 1800
Looking rather old-fashioned compared to the high-speed axe bow vessels that Damen are renowned for, this solid OPV may nevertheless be more the sort of thing that the RAN is after for providing a reliable, enduring presence around its northern border.
Damen offers 72m, 83m (on display), 90m and 98m variants, so there’s plenty of options to choose from. The 1800 (model number and displacement in tons) has a top speed of just 22 knots but would no doubt be economical to run and appears to have a flexible mission bay below the helicopter deck to allow the ship to be adapted for different missions.
https://www.linkedin.com/pulse/opvs-display-pacific-2015-tom-dearling