36 express trawler with twin 270s

[arcticspud]

Does anyone have any fuel flow numbers/performance numbers? Is there any vibrations with a twin 36 ET? We are looking at Indigo and it has twin Cummins 270s.

[joreyn]

Blue Mooon has twin Cat 300s. I developed this chart based on the Caterpillar performance chart. Later, after I had Flo-Scans installed, I was able to confirm the gallons per hour of fuel burn to within a few decimal points. Sorry that the alignment of the chart isn't perfect but you can see the point. INdigo should be similar, I would think.

Blue Moon
Performance Chart
Twin 350 HP Turbo Cats


Engine RPM* Gallons/Hour** Speed (NM/H) NM/G Range***

1200 3.4 7 2 684
1400 5 8.3 1.7 581
1600 7 9.3 1.32 451
1800 9.4 9.9 1.05 359
2000 12.6 11.4 .9 308
2100 14.6 13 .89 304
2200 16.6 14.8 .89 304
2400 21.6 17.1 .79 270
2600 27.8 19.5 .70 239
2800 36 21+ 0.61 209

[arcticspud]

Thanks for the information.