What is your normal cruising speed?

[Hampton]

2005 340 8.1 Gas V-Drives

3250 - 3400RPM, depending on weight and conditions
Usually about 22 knots, 25 mph
Heavy - .78 mpg
Light - .88 mpg
Usually - low .8's mpg
Best for me is single engine, 5.5 knots, 2.4 mpg
1250 RPM for 2-engine slow cruise at about 7.0 knots, 2 mpg
What am I leaving out?
Most trips with some slow cruising, some docking, some regular cruising = about .92 mpg.

 

[osd9]

Interesting to look at the graph of the results so far.....almost a perfect bell curve...

 

[Daniel P Thomas]

Interesting to look at the graph of the results so far.....almost a perfect bell curve...

Dom

My thoughts exactly
Probably a good relation to size also.

 

[The Bill Collector]

" In specific terms, the ratio of 6,080 to 5280 shows that one nautical mile is .87 land miles and one land mile is 1.15 nautical miles. As an old Captain once told me, if the speedometer is calibrated in knots, land miles are “just a little bit less. If it is calibrated in land miles, nautical miles are just a little bit more. I use a simple calculation of 10% as a good quick conversion. At 10 mph you are doing 11 knots. At 10 knots you are doing 9 MPH. At 30 MPH you are doing 27 knots, and at 30 knots you are doing 33 MPH. "

• 1nautical mile = 1.15 statute miles (or land miles)
• 1 statute mile = 1.6 kilometres

From all this, we can state that a knot is a unit of speed one nautical mile per hour, which is approximately 1.15 land or statute miles per hour.
( SOURCE http://www.fishsa.com/boatngsn.php )

I don't mean to get too picky because I think we all know what you were trying to say, but you have a few of your facts backwards......

 

[billandamy]

Boat year/model 08 205 sport
Boat beam 8
Configuration 260 hp i/o, alpha 1, 19pitch ss prop
Displacement no clue
Fuel type: gas
Estimated fuel mileage at that speed: no idea, I just fill it up when its near empty

I voted for 30+ knots. But it is a sport boat, and my friends and family would chastise me for going slow. I like the speed anyway, as it is more fun than cruising. When we want to hang out and chit chat, we anchor up.