RE: [PSUBS-MAILIST] Rudders

Yes that’s me! Please stand in-line for a signed poster.

A good design to control sub with 2 motor is to have them in the center of mass (from front to rear) and as far away from each other (side to side).

I also have mine so they can rotate on the shaft. So I can use them for up/down movement.

Pierre

De : owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] De la part de Alan James
Envoyé : 22 mai 2010 03:46
À : personal_submersibles@psubs.org
Objet : Re: [PSUBS-MAILIST] Rudders

Sorry Pierre, It's clicked who you are.

The world famous owner of "big".

Your email name through me out.

To all.

below is a link to a glossary of submarine terms found on the

"Deep search site" that's quite good.

http://www.deepsearch.org/?page_id=26

Alan

----- Original Message -----

From: Alan James

To: personal_submersibles@psubs.org

Sent: Saturday, May 22, 2010 4:13 PM

Subject: Re: [PSUBS-MAILIST] Rudders

Thanks Pierre,

Any photos of your sub you can refer me to?

Is it 1atm or ambient.?

Regards Alan

----- Original Message -----

From: marie-andree et pierre

To: personal_submersibles@psubs.org

Sent: Saturday, May 22, 2010 2:37 PM

Subject: RE: [PSUBS-MAILIST] Rudders

Hi Alan,

My use a very similair design with one motor on each side and I don,t have a rudder. With one full foward and one full backward, I can almost turn on the spot. Same as a bulldozer.

So no, I would not waste time on rudders.

De : owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] De la part de Alan James
Envoyé : 21 mai 2010 19:31
À : personal_submersibles@psubs.org
Objet : [PSUBS-MAILIST] Rudders

Hi all,

I have been looking at some videos of a small 1 person semi-dry ambient sub in action.

http://www.fugusub.com/

This sub doesn't have a rudder & just uses differing motor speeds to turn.

As I'm building a small 1 person sub of a similar size with two PWM controlled motors I'm wondering

wether a rudder is going to be a waste of time for me. I did have a rudder in my original design.

Any thoughts on this thanks.

Alan