Offshoreonly.com - Conventional V-bottom hydronamics question..........

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- - Conventional V-bottom hydronamics question.......... (https://www.offshoreonly.com/forums/general-boating-discussion/175826-conventional-v-bottom-hydronamics-question.html)

CNC	12-30-2007 08:44 PM

Shark skin traps air bubbles .....no stickshon (sp?) between water and bottom surface

MOBILEMERCMAN

12-30-2007 08:46 PM

A bad day boating is always better than a good day inside.

Enforcer2

12-30-2007 08:47 PM

Okay now I remeber.Thanks again for the help.:cool-smiley-011:I'll keep ya posted

Knot 4 Me

12-31-2007 12:21 PM

Quote:

Originally Posted by marylandmark (Post 2388314)

What is a notched transom and why is it good/bad?

Post #125 shows a notched transom. Allows you to run you drives higher for less drag but still feed them plenty of water for bite.

MOBILEMERCMAN

12-31-2007 03:19 PM

The notch is the area plugged in the mold it. It shortens the running surface, allows drives to be mounted higher and makes the bow run lighter.

Semper Fi

12-31-2007 03:34 PM

Quote:

Originally Posted by MOBILEMERCMAN (Post 2387822)

A bad day boating is always better than a good day inside.

Depends on what you break :) I'd rather stay home than break a drive or engine!

MOBILEMERCMAN

12-31-2007 04:14 PM

Its still better boating, besides if it was going to break waiting a day or two doesn't make it any easier.

monstaaa

12-31-2007 07:14 PM

Quote:

Originally Posted by Audiofn (Post 2387114)

Yes but on the smooth side the tile will slide from side to side much easier. America's cup boat spend more money on speed then anyone and they no longer sand the bottoms they make them as perfectly smooth as they can.

maybe for them, but sail boats dont run over 100

open87

12-31-2007 07:26 PM

1 Attachment(s)

Quote:

Originally Posted by Enforcer2 (Post 2387794)

I have heard of and tried different size pitchs on outers and centers. The problem with outeres being so high is when you turn boat they will cavitate. I went to four blades and problem was non existent.

25" centers would be a lot easier to find.

I want to keep the top of engine cowlings as close to even with each other as possible.

Here's a pict of a new Homeland Security Midnight.

http://www.offshoreonly.com/forums/s...d.php?t=176114

52 ft long.... jackplates..:cool-smiley-011:

TUFFboat

01-01-2008 07:40 PM

Enforcer2;
I'm going to ditto the info from MOBILEMERCMAN and add this... Ultimately you will check your height by doing your slip calulation. If your percentage slip is much greater than about 15%, than you know to lower that motor.
On a VEE I would try to get the props as close together as possible. I remember when people used to angle the motors on the transom to get them closer at the prop.

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