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Re: [PSUBS-MAILIST] Calculating Hull Speeds

To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Calculating Hull Speeds
From: David Buchner <buchner@wcta.net>
Date: Fri, 24 Dec 2004 08:38:49 -0600
In-reply-to: <e0.950f62e.2efa0458@aol.com>
Reply-to: personal_submersibles@psubs.org
Sender: owner-personal_submersibles@psubs.org

On Tuesday, Dec 21, 2004, at 16:57 US/Central, SeaLordOne@aol.com wrote:

The wires are pretty slow lately, so perhaps I will toss in one of those Boating 101 facts not everyone may know. There are two basic hull types: planing hulls that can ride over the water, and displacement hulls that cut through the water. If you have a planing hull, more power can get you more speed. But if you have a displacement hull, like submarines do, your speed (on the surface) is limited by your length.

Just wanted to say that this was fascinating -- definitely one of those non-intuitive things.

And ask a question that'll reveal me to be a bit thick:

Where does the extra power go, if it wouldn't make you faster?

Follow-Ups:
- Re: [PSUBS-MAILIST] Calculating Hull Speeds
  - From: gordon alexander <gordon@curio.com>
- Re: [PSUBS-MAILIST] Calculating Hull Speeds
  - From: "Joop Dresscher" <jadresscher@chello.nl>

References:
- [PSUBS-MAILIST] Calculating Hull Speeds
  - From: SeaLordOne@aol.com

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