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RE: [PSUBS-MAILIST] Reverse Thruster Wiring Options



Brent,
 
The most intuitive control is that of a joystick. In the case of NR-2, the fore and aft X thruster config, would have made for a dandy setup.
 
Minnkota, already has a nice setup for dial speed control, so perhaps left hand for motor speed / direction, right hand for directional control via joystick.
 
What I would have done, and never got around to it, is to see and copy precisely what an Alvin pilot uses. This entire project, would have copied technologies already proven and in place, Frankenstein style.
 
My reason for staying here, (besides cheese-whiz entertainment), is to continue to learn.
 
Joe


 


From: brenthartwig@hotmail.com
To: personal_submersibles@psubs.org
Subject: [PSUBS-MAILIST] Reverse Thruster Wiring Options
Date: Fri, 29 Aug 2008 14:51:33 -0700

Hello Joe,

It ac cured to me that, if there was two foot brakes that control braking flaps, or an emergency brake lever to operate those flaps, it could be wired in so that when both foot peddles are engaged for deploying the braking flaps, and/or the emergency brake flaps lever is pulled, that it would automatically reverse the thruster props. 

Along this same idea, one could have no braking flaps on a sub at all, and have one foot brake peddle or lever that when engaged will send all the thruster props into reverse.



Your resident possibility thinker ;)'

Regards,

Szybowski



From: joeperkel@hotmail.com
To: personal_submersibles@psubs.org
Subject: RE: [PSUBS-MAILIST] Stopping Flaps
Date: Fri, 29 Aug 2008 10:06:09 +0000

In all the time that I was contemplating NR-2, this is precisely what I had envisioned. Minnkota has a dial control that I was looking at.

Operationally, the first order of business was going to be target acquisition on the Interphase screen by the pilot, with a visual confirmation or "tally ho" by the co-pilot via a forward cam or port. Then the pilot switches to visual navigation, just like flying an approach on instruments. Basically, the whole idea being to avoid the "oops" in the first place.

Joe


From: ShellyDalg@aol.com
Date: Fri, 29 Aug 2008 02:27:38 -0400
Subject: Re: [PSUBS-MAILIST] Stopping Flaps
To: personal_submersibles@psubs.org

I tend to agree with you on that Ian. Better to pump up the motors than devise a whole separate system for slowing the sub. A full reverse using maximum thrust from all your motors would be easier to incorporate, cut down on reaction time, and have the added benefit of being available for a quick burst of thrust in forward as well. My motors (4) have 101 pounds thrust each. In reverse, that's probably a lot less, but still, almost like throwing out an anchor! No separate complicated system, just slam the controls back and hope you have enough room to stop. There again, it doesn't make sense to travel faster than what your sub can handle in a stop mode. Frank D.




It's only a deal if it's where you want to go. Find your travel deal here.