View Single Post
Old 01-13-2019, 07:48 PM   #3
koliver
TF Site Team
 
koliver's Avatar
 
City: Saltspring Island
Vessel Name: Retreat
Vessel Model: C&L 44
Join Date: Nov 2007
Posts: 5,663
Quote:
Originally Posted by Comodave View Post
Keep in mind they are Volvos...
Fuel consumption is not affected by brand name.
Look at the wave you are making. If you want better fuel consumption, make a smaller wave. It really is that simple.

I run at 8 knots almost all of the time. My fuel consumption improved when I updated my engines from TMD40s to TAMD41s, and further when I overpropped to run closer to the sweet spot at 8 knots.

Those things can be done with any brand name and will get the same results.

At 8 knots, wave no more than 1ft tall, 44000lb of Semi Displacement in 44 feet, I get a consistent 2 nmpg.

Those engines should go 10000 hrs before a major rebuild, so long as you look after them and don't have any catastrophic failure along the way.

When I sold my TMD40s, they had close to 5000 hrs. The fisherman who bought, was happy to pay my asking price without trying to negotiate me lower.
__________________
Keith
koliver is offline   Reply With Quote