Thursday, February 21, 2013

A Clean Bottom is Great

Well the M/V Ramblin' is back in the water.  Out of the yard.

With the new bottom paint and a few improvements we are ready for the season!

I took her out for a quick run on the fresh paint.  With light tanks... a little more than 1/3rd full of fuel.  1/2 to 3/4 full of water.  No heavy provisions. I was ready for the perfect run to test her out.  And the weather was just right too!

I gave her a little exercise and got the Cummins Diesels wormed up.  This is what I recorded.


  • At 2000 RPM she ran at 14.8 knots
  • At 2100 RPM she ran at 16.5 - 16.8 knots
  • At 2200 RPM she ran at 17.1 - 17.3 knots
  • At 2425 RPM she ran at 20.0 - 20.4 knots <= WOT

What a sweet thing to report.  

Slower than 2000 RPM she squats and slower than 1700 she does not have the Turbo kicking in so you may as well drop to Hull Speed of just under 8 knots at 1,000 RPM or just push a little at 1100 RPM for 9 knots.

At my favorite speed of 2200 RPM I think I'm not quite at 1:1 gal per mile but at 2100 RPM I think I am getting really close to 1:1. 

I'll have to repost this to my www.MVRamblin.com web page too.  

Thanks for checking in.  Feeling Good about the boat.

Keith <"><