Re: Unmanned sub crosses ocean
From: Hans-Georg Michna (hans-georgNoEmailPlease_at_michna.com)
Date: 11/29/04
- Next message: David Lee: "Re: Why doesn't GPSmap 76C convert to British Grid?"
- Previous message: Hans-Georg Michna: "Re: Unmanned sub crosses ocean"
- In reply to: Alan Browne: "Re: Unmanned sub crosses ocean"
- Next in thread: Alan Browne: "Re: Unmanned sub crosses ocean"
- Messages sorted by: [ date ] [ thread ]
Date: Mon, 29 Nov 2004 13:28:08 +0100
On Fri, 26 Nov 2004 11:29:52 -0500, Alan Browne
<alan.browne@FreeLunchVideotron.ca> wrote:
>Hans-Georg Michna wrote:
>> You see, a few thoughts already went into this. (:-)
>I don't doubt it, OTOH, gasketting propeller drive shafts has been going on for
>over a century with a good track record. Controlling a sail in two axis will
>require more power than controlling a rudder due to the mass and moments of the
>sail... so the articulation and actuators will be larger and consume more power
>than a rudder actuator and a simple rotating vertical axis for the sail.
>
>Your project, so do as you like.
Alan,
I see your points. I was hoping that the controls would use no
power at all for most of the time, so all this does not matter
so much.
My project is essentially finished after writing it down (at
http://www.michna.com/sailbot.htm). I'm not going to build the
vessel alone. There is a tiny chance that somebody one day calls
me and asks me to take part in a similar project, and that's
about it.
But it was fun. Thanks for your excellent contributions!
Hans-Georg
-- No mail, please.
- Next message: David Lee: "Re: Why doesn't GPSmap 76C convert to British Grid?"
- Previous message: Hans-Georg Michna: "Re: Unmanned sub crosses ocean"
- In reply to: Alan Browne: "Re: Unmanned sub crosses ocean"
- Next in thread: Alan Browne: "Re: Unmanned sub crosses ocean"
- Messages sorted by: [ date ] [ thread ]
Relevant Pages
|
