The Brazilian Navy has a river monitor in service now that was first commisioned into their Navy in 1938. It received a major upgrade/modernization in 1998-99 that replaced the old reciprocating machinery with diesels, added a helicopter landing pad, and changed the armament fit. For more details on the U-17 Parnaiba river monitor, please see the wikipedia entry at http://en.wikipedia.org/wiki/Brazilian_ ... ADba_(U17)
Here's a picture:
And here's my drawing ...
Comments? I didn't have a definitive line drawing of the modernized vessel, so I kind of built it from the pictures I could find. Do you include the helicopter if the ship does not have hangar facilities (i.e. its just a landing pad)? Is the correct letter designator for a river monitor RM or do you use BM for all monitors? By the way, the thing behind the float near the bow appears to be some kind of tubular framework holding an antenna in the pictures, AFAIK, not sure if that should just be left off.
There are other, more modern river monitors/patrol boats in several South American Navies, are they suitable for ShipBucket - or is this site more focused on ocean going ships only?
Other recent drawings include:
Landing Craft Support (Large)
German SWATH Customs Vessel