Let's guesstimate !marktigger wrote:does the Cutlass or Avenger concepts have the projected endurance that is being put as one of the requirements? or are we going to then have to provide a fleet of "Rover II" tankers to support them?
River B2 having 5500 nm@15kt range with 35 days endurance. Avenger, being its stretched version, will at least have the same length. Is it too short? I do not think so. As a CVTF escort it will have Tides/Waves together = no problem. At singleton operation, it will have at least 6900nm@12kt (assuming resistance proportional to v^2, and fueld/power curve is flat in diesel gen) = no problem. (35 days endurance is so so OK).
Cutlass, cutlass .... no idea. Its base hull Khareef has very short range (4500nm@7.7kt) and endurance (21 days). But the "15m in the middle" will make it possible to increase it as much as you like.
Overall, I guess it will be 5500-7000nm@15kt, 35days.
Congratulation. But, it still states midium calibre gun. Let's wait for the conclusion of the 12months study."Naval Fire support" so the gun isn't there for anti aircraft work!