A question, what is the real endurance of the Webber Class WPCs? The figure I see quoted is five days. This was the contract minimum. This is the same as listed for the 87 foot WPBs. Is this correct? This becomes important when the vessel has to make a long transit to and from its patrol area, and if we are understating the endurance, we are selling the class short.
The Webber class vessels are 353 tons full load. Similar sized ships seem to have greater endurance. The Navy’s 387 ton full load Cyclone class PCs have a nominal ten day endurance. The 300 ton Australian Armidale class patrol vessels claim a normal endurance of 21 days and 42 days maximum.
The Webber class’s endurance is not constrained to five days by fuel. The 87 ft WPBs have a nominal endurance of five days but a range of only 900 miles. The Webber class have a range of 2950 nautical miles. Obviously you don’t want to run the ship down to zero fuel, but at ten knots, it would take 295 hours or over 12 days to go 2950 miles. Even at 14 knots, it would take almost nine days to go 2950 miles. Additionally, it is the nature of Coast Guard missions that cutters frequently loiter as low speed which potentially adds patrol time.
We have had these little ships long enough that we should have a revised opinion of their endurance based on experience. Any feedback?