On plane - some pictures...
 

This morning, while burning some old gas in the Ranger, I took the
following sequence of pictures at various speeds.

The first is at idle - putting along.

http://www.home.earthlink.net/~tomf123/Idlestern.JPG

The second is with power applied - 1k rpm. Notice the increase in wave
height.

http://www.home.earthlink.net/~tomf123/onekstern.JPG

This is 1.5K. The shape of the wake is changing.

http://www.home.earthlink.net/~tomf1...tfivestern.JPG

This is 1.5K bow wave - this is where the bow wave starts to appear.

http://www.home.earthlink.net/~tomf1...fivebowave.JPG

2K stern - the shape of the wake is starting really change here.

http://www.home.earthlink.net/~tomf123/twokstern.JPG

2.5K - the shape of the wake is fully formed, but we're not quite
there yet.

http://www.home.earthlink.net/~tomf1...tfivestern.JPG

3K - this is the transitional stage where the boat comes fully up on
the planing surface. It doesn't happen in short bursts on this boat -
it literally goes from 3K to 4K all at once and your on plane. The
planing wake shape is now fully formed.

http://www.home.earthlink.net/~tomf123/threeKstern.JPG

Notice the lack of bow wave.

http://www.home.earthlink.net/~tomf123/threekbowave.JPG

3.9K

http://www.home.earthlink.net/~tomf1...ineplaning.JPG

Up on plane at 3.9k - wake fully formed.

http://www.home.earthlink.net/~tomf1...planestern.JPG

WOT.

http://www.home.earthlink.net/~tomf123/WOT.JPG

Wake WOT.

http://www.home.earthlink.net/~tomf123/WOTplane.JPG

Cruise and Cruise wake:

http://www.home.earthlink.net/~tomf123/cruise.jpg

http://www.home.earthlink.net/~tomf1...iseplaning.JPG

Hull shape bow and stern:

http://www.home.earthlink.net/~tomf123/hullshapebow.JPG

http://www.home.earthlink.net/~tomf1...shapestern.JPG

I'm not sure what all this proves, but it shows that most of this boat
is out of the water, on top - gliding if you will. :)

Phew....glad all that's over with.

Now, bring on the politics!!!!

Er.......forget I said that.

Take care.

Tom

"The beatings will stop when morale improves."
E. Teach, 1717

I didn't see a dock at your launching ramp. What do you do with the boat as
you park the tow vehicle/trailer.

That lake sure looked nice and peaceful before you cranked it up. Bet it
would be a good place for a modest sailboat.

Harry,
Ain't ya ever heard of auto pilot? :-)
Paul

"Harry Krause" wrote in message
...
Don White wrote:
I didn't see a dock at your launching ramp. What do you do with the boat
as
you park the tow vehicle/trailer.

That lake sure looked nice and peaceful before you cranked it up. Bet it
would be a good place for a modest sailboat.



I was wondering who was steering the boat...while our hero had his eyes
planted sternward...



--
A passing thought:

"Then you wake up at the high school level and find out that the
illiteracy level of our children are appalling." —George W. Bush,
Washington, D.C., Jan. 23, 2004

Looks like you have a bad sender/gauge or you have a LOT of fuel to burn.

Short Wave Sportfishing wrote:

This morning, while burning some old gas in the Ranger, I took the
following sequence of pictures at various speeds.



3.9K

http://www.home.earthlink.net/~tomf1...ineplaning.JPG

On Wed, 24 Nov 2004 00:04:10 GMT, Dan Krueger
wrote:

Looks like you have a bad sender/gauge or you have a LOT of fuel to burn.

I filled it three weeks ago in anticipation of a inshore trip and that
didn't pan out, so I wanted to burn off about 8 gallons or so for
overwinter.

I didn't want to have a full gas tank - been there, done that. :)

Later,

Tom

On Tue, 23 Nov 2004 19:19:10 -0500, Harry Krause
wrote:

Short Wave Sportfishing wrote:
On Wed, 24 Nov 2004 00:04:10 GMT, Dan Krueger
wrote:

Looks like you have a bad sender/gauge or you have a LOT of fuel to burn.

I filled it three weeks ago in anticipation of a inshore trip and that
didn't pan out, so I wanted to burn off about 8 gallons or so for
overwinter.

I didn't want to have a full gas tank - been there, done that. :)

Where do you keep the Contender, down on the Sound?

Narragensett Bay.

Later,

Tom

On Tue, 23 Nov 2004 19:19:55 GMT, "Don White"
wrote:

I didn't see a dock at your launching ramp. What do you do with the boat as
you park the tow vehicle/trailer.

Dock? I don't need no steenkin' dock.... :)

Just beach it - simple as that. That's why God made keel guards.

That lake sure looked nice and peaceful before you cranked it up. Bet it
would be a good place for a modest sailboat.

Actually, there are three ponds and they are excellent for sailing.
There is a large sail club in the middle pond and they race O'Day day
sailors. In the evening, there is a nice breeze on most days that
comes off the land and swirls around - it is a little tricky, but once
you get used to it, it's a ton of fun.

I used to have a Hobie Cat and could get up a good head of steam in
the center pond on a decent day.

In the winter, when the ice is right, there is a sizable ice boat club
that races on the lake.

Take care.

Tom

"The beatings will stop when morale improves."
E. Teach, 1717

On Tue, 23 Nov 2004 14:24:27 -0500, Harry Krause
wrote:

Don White wrote:
I didn't see a dock at your launching ramp. What do you do with the boat as
you park the tow vehicle/trailer.

That lake sure looked nice and peaceful before you cranked it up. Bet it
would be a good place for a modest sailboat.

I was wondering who was steering the boat...while our hero had his eyes
planted sternward...

I was large and in-charge.

I took the sternward looking pictures using a mirror.

No - I just made sure there weren't any boats in the way and took the
pix.

It was pretty freakin' cold out there I might add.

All the best,

Tom
--------------

"What the hell's the deal with this newsgroup...
is there a computer terminal in the day room of
some looney bin somewhere?"

Bilgeman - circa 2004

On Tue, 23 Nov 2004 15:59:09 -0500, Harry Krause
wrote:

Paul Schilter wrote:
Harry,
Ain't ya ever heard of auto pilot? :-)
Paul

"Harry Krause" wrote in message
...
Don White wrote:
I didn't see a dock at your launching ramp. What do you do with the boat
as
you park the tow vehicle/trailer.

That lake sure looked nice and peaceful before you cranked it up. Bet it
would be a good place for a modest sailboat.



I was wondering who was steering the boat...while our hero had his eyes
planted sternward...

Indeed, and if anyone would have it on a bass boat, it would be our hero.

They make one for bass boats you know.

And I'll have you understand that it's not a bass boat - it's a BAY
boat.

Harrumph.....

Live long and prosper,

Tom

Short Wave Sportfishing wrote:
This morning, while burning some old gas in the Ranger.....
2.5K - the shape of the wake is fully formed, but we're not quite
there yet.

http://www.home.earthlink.net/~tomf1...tfivestern.JPG

Actually, at this point, you're planing. The crest of the boat's stern
wave is noticably past the transom, and therefor by definition you're
exceeding hull speed... therefor planing. Of course, it's not an
either/or thing in the real world. The boat's weight is still largely
supported by displacement rather than dynamic lift, hence the hole in
the water which the wake is closing up.


3K - this is the transitional stage where the boat comes fully up on
the planing surface. It doesn't happen in short bursts on this boat -
it literally goes from 3K to 4K all at once and your on plane. The
planing wake shape is now fully formed.

http://www.home.earthlink.net/~tomf123/threeKstern.JPG

Notice the lack of bow wave.

http://www.home.earthlink.net/~tomf123/threekbowave.JPG

The bow wave is there, it's just behind you ;)

I commend you for taking the time & effort to put some observation on
the wake. Far too many people pretend it's not there.

Somewhere floating around I have some pictures taken astern from the
Johnson 18 when it's planing, when close-hauled and under spinnaker.
When "fully planing" there's no wave train at all, just a flat swath of
white water. Of course the hull shape is much more efficient....

Fair Skies
Doug King