Spring is coming ...
 

On 3/18/2014 12:55 AM, wrote:
On Mon, 17 Mar 2014 21:49:28 -0400, Wayne.B
wrote:

On Mon, 17 Mar 2014 17:21:20 -0500, Boating All Out
wrote:

If I had the money to spend I'd design a light trawler capable of 15
mpg.

===

There's no such animal. Even small sailboats do not get that kind of
fuel economy under most conditions.

I get around 8-9 MPG at hull speed in my boat.

I get around 8 or 9 mpg in my yacht.

Spring is coming ...
 

On Tue, 18 Mar 2014 12:00:14 -0500, Boating All Out
wrote:

In article ,
says...

On Tue, 18 Mar 2014 09:49:58 -0500, Boating All Out
wrote:

I suppose at full power 2 15hp Hondas can only burn so much fuel.
The question is at what speed.

===

At full power, wide open throttle, they will burn about 3 gallons per
hour total. At 70% of WOT about half that.

That's in line with the specs I gave. The question is can one engine
push it at 8 knots. Can't answer that.

===

Possibly in ideal conditions, but even if it can, you're still only
getting about 5 mpg (8 kts / 1.5 gph). Best fuel economy and range
would be with a single small diesel, somewhere around 20 horsepower
would be about right. At 70% of WOT that would burn about 1 gph with
a speed of around 7 kts.

Spring is coming ...
 

On Tue, 18 Mar 2014 13:15:14 -0400, H*a*r*r*o*l*d
wrote:

On 3/18/2014 12:55 AM, wrote:
On Mon, 17 Mar 2014 21:49:28 -0400, Wayne.B
wrote:

On Mon, 17 Mar 2014 17:21:20 -0500, Boating All Out
wrote:

If I had the money to spend I'd design a light trawler capable of 15
mpg.

===

There's no such animal. Even small sailboats do not get that kind of
fuel economy under most conditions.

I get around 8-9 MPG at hull speed in my boat.

I get around 8 or 9 mpg in my yacht.

===

How long do your tires last?

Spring is coming ...
 

On Tue, 18 Mar 2014 13:34:30 -0400, Wayne.B
wrote:

On Tue, 18 Mar 2014 12:00:14 -0500, Boating All Out
wrote:

In article ,
says...

On Tue, 18 Mar 2014 09:49:58 -0500, Boating All Out
wrote:

I suppose at full power 2 15hp Hondas can only burn so much fuel.
The question is at what speed.

===

At full power, wide open throttle, they will burn about 3 gallons per
hour total. At 70% of WOT about half that.

That's in line with the specs I gave. The question is can one engine
push it at 8 knots. Can't answer that.

===

Possibly in ideal conditions, but even if it can, you're still only
getting about 5 mpg (8 kts / 1.5 gph). Best fuel economy and range
would be with a single small diesel, somewhere around 20 horsepower
would be about right. At 70% of WOT that would burn about 1 gph with
a speed of around 7 kts.

===

Correction on that. A 20 hp diesel at 70% of WOT should burn about
..7 gph giving you something like 10 mpg in flat water.

Spring is coming ...
 

In article , says...



Doesn't seem like a boat heavy enough to offer any comfort or feeling of
safety in anything but flat calm seas. To where would you cruise...from
one side of a small lake to the other side? You certainly would not want
to be out in a choppy bay.

A 38' boat should handle chop.
Can't say anything other than that.
It could be busy in heavy seas.
Probably no more uncomfortable than a similar sized heeling sail boat.
I guess it pitches, rolls and yaws like every boat, but more.
You can't have everything.

Spring is coming ...
 

In article ,
says...

On Tue, 18 Mar 2014 12:00:14 -0500, Boating All Out
wrote:

In article ,
says...

On Tue, 18 Mar 2014 09:49:58 -0500, Boating All Out
wrote:

I suppose at full power 2 15hp Hondas can only burn so much fuel.
The question is at what speed.

===

At full power, wide open throttle, they will burn about 3 gallons per
hour total. At 70% of WOT about half that.

That's in line with the specs I gave. The question is can one engine
push it at 8 knots. Can't answer that.

===

Possibly in ideal conditions, but even if it can, you're still only
getting about 5 mpg (8 kts / 1.5 gph). Best fuel economy and range
would be with a single small diesel, somewhere around 20 horsepower
would be about right. At 70% of WOT that would burn about 1 gph with
a speed of around 7 kts.

Specs say:
Half load, one engine at low mid speed (3,000rpm).
Fuel consumption is 0.407 gph. per engine
Speed is 8 knots.
100 gallons fuel gives 1,965 nautical miles

Spring is coming ...
 

On 3/18/2014 1:58 PM, Boating All Out wrote:
In article ,
says...

On Tue, 18 Mar 2014 12:00:14 -0500, Boating All Out
wrote:

In article ,
says...

On Tue, 18 Mar 2014 09:49:58 -0500, Boating All Out
wrote:

I suppose at full power 2 15hp Hondas can only burn so much fuel.
The question is at what speed.

===

At full power, wide open throttle, they will burn about 3 gallons per
hour total. At 70% of WOT about half that.

That's in line with the specs I gave. The question is can one engine
push it at 8 knots. Can't answer that.

===

Possibly in ideal conditions, but even if it can, you're still only
getting about 5 mpg (8 kts / 1.5 gph). Best fuel economy and range
would be with a single small diesel, somewhere around 20 horsepower
would be about right. At 70% of WOT that would burn about 1 gph with
a speed of around 7 kts.

Specs say:
Half load, one engine at low mid speed (3,000rpm).
Fuel consumption is 0.407 gph. per engine
Speed is 8 knots.
100 gallons fuel gives 1,965 nautical miles



Yabut the fuel would be stale by the time you got there.

Spring is coming ...
 

On 3/18/14, 1:51 PM, Boating All Out wrote:
In article , says...



Doesn't seem like a boat heavy enough to offer any comfort or feeling of
safety in anything but flat calm seas. To where would you cruise...from
one side of a small lake to the other side? You certainly would not want
to be out in a choppy bay.

A 38' boat should handle chop.
Can't say anything other than that.
It could be busy in heavy seas.
Probably no more uncomfortable than a similar sized heeling sail boat.
I guess it pitches, rolls and yaws like every boat, but more.
You can't have everything.


The motion in all planes would be worse than a cruising sailboat with a
keel.

Speaking of which, if you don't want to burn fuel and you aren't in a
hurry, why not just get a decent sailboat with an aux. engine? Even a
sailboat smaller than what you are discussing here would be far more
comfortable and safe. There are plenty of solid used sailboats around
with good surveys and lots of life left in them, and fairly simple
systems compared to similarly sized powerboats.

Spring is coming ...
 

On 3/18/2014 1:36 PM, Wayne.B wrote:
On Tue, 18 Mar 2014 13:15:14 -0400, H*a*r*r*o*l*d
wrote:

On 3/18/2014 12:55 AM, wrote:
On Mon, 17 Mar 2014 21:49:28 -0400, Wayne.B
wrote:

On Mon, 17 Mar 2014 17:21:20 -0500, Boating All Out
wrote:

If I had the money to spend I'd design a light trawler capable of 15
mpg.

===

There's no such animal. Even small sailboats do not get that kind of
fuel economy under most conditions.

I get around 8-9 MPG at hull speed in my boat.

I get around 8 or 9 mpg in my yacht.

===

How long do your tires last?


Don't know. They look new.

Spring is coming ...
 

On Tue, 18 Mar 2014 15:18:37 -0400, H*a*r*r*o*l*d wrote:

On 3/18/2014 1:36 PM, Wayne.B wrote:
On Tue, 18 Mar 2014 13:15:14 -0400, H*a*r*r*o*l*d
wrote:

On 3/18/2014 12:55 AM, wrote:
On Mon, 17 Mar 2014 21:49:28 -0400, Wayne.B
wrote:

On Mon, 17 Mar 2014 17:21:20 -0500, Boating All Out
wrote:

If I had the money to spend I'd design a light trawler capable of 15
mpg.

===

There's no such animal. Even small sailboats do not get that kind of
fuel economy under most conditions.

I get around 8-9 MPG at hull speed in my boat.

I get around 8 or 9 mpg in my yacht.

===

How long do your tires last?


Don't know. They look new.

I'm going to have to bite the bullet and spend the bucks for some tires for the Silverado. About
settled on Michelin LTX MS/2. WalMart's got 'em for $216, plus $12 mounting/balancing/etc. That's
$28/tire less than Costco - which also charges $15/tire for mounting/balancing.