Mileage Performance Checkup

[77SceptreOB]

A lot of folks do their prop testing with too light a load and end up picking a prop that's too big (too much pitch) for the load they typically carry!

X2

[bridgeman]

Let's see if I hook mine up to a gas tank with 1 gallon in it I'd still be close enough to the dock to throw someone a line when it ran dry. Old merc's love the pre-mix

[Snookerd]

Let's see if I hook mine up to a gas tank with 1 gallon in it I'd still be close enough to the dock to throw someone a line when it ran dry. Old merc's love the pre-mix

Hehe.....Yea, seriously with my Twin 225's I would make it out of my canal to the Manatee River. Maybe [img]/forum/images/graemlins/tongue.gif[/img]

[Islandtrader]

A little late to get into this conversation but I have a question???

Why is everyone so concerned about how many miles per gallon they get? Or is this just a different way to get the information then hours per gallon?

Now let me explain. When I was running a 30 ft Allura with a 350 inboard I put on over 1400 hours and I could not tell you what my mpg was.

However I could tell you what my burn rate was per hour and almost any speed. I use to log my hours and every fill up. So if I was going port to port my burn rate would be 8 gph. If I was doing fishing cruising or cock tailing my burn rate was 6 gph. So by using the hour meter and the high end of the burn rate I could always tell how much fuel I had left, and there was confirmation at every fill up.

Anyway that is my story and I am sticking to it.

[cdavisdb]

Probably just different ways of thinking about almost the same thing. For example, I could care less what I burn per hour; as variable as my engine use is, it would be hard to keep up with anyway. But, since I go way out back of beyond where there ain't no fuel and want to stay as long as possible, mpg is important.

[rcnight]

I was thinking ahead to this summer when I hope to join other CSC'ers head across to the Bahamas. Since I've never made the crossing, I figured a good way to estimate fuel needs would be to factor gallon per mile at a fairly constant cruising speed.

[MasterBaiter]

I think I hear another boat going to Bahamas this summer!!!!

I think everyone is talking the same thing - GPH + MPG.
Back in the "Old Days" we didn't have the electronics to know the miles travelled so it was hours and gallons.

Hmm, thinking about the old days - I can't remember the last time I used the mop handle to stick the tank.

[Fr. Frank]

Hmm, thinking about the old days - I can't remember the last time I used the mop handle to stick the tank.

Wow. That brought back memories. When I was a kid, my grandfather had an old 43' Rybovich with the twin 300 gallon saddle tanks and fuel fills on each gunwale. No fuel gauges. He had a 1" square wooden stick about 7' long, with measurements carved into the wood.

Those twin Chrysler Imperial "Majestic 8" inline-8 motors sure did suck the gas down. And all of 150 hp each.(I remember one of the engines was reverse rotation.) I know those motors were out of a pre-WWII Navy patrol boat.

Memories, Memories.

[Islandtrader]

Back in the "Old Days" we didn't have the electronics...

In the old days if the gas gauges stopped working then there was always a site gauge on top of the tank.

[rcnight]

My first SeaCraft was a 79 Seafari with a mechanical guage on the tank. It had a plexiglass window in the floor to peer thru. Worked better when it was wet - due to all the scratches.