[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: ARSG Motors (fwd)

To: tesla@xxxxxxxxxx
Subject: Re: ARSG Motors (fwd)
From: "Tesla list" <tesla@xxxxxxxxxx>
Date: Mon, 27 Aug 2007 07:43:22 -0600 (MDT)
Delivered-to: testla@xxxxxxxxxx
Delivered-to: tesla@xxxxxxxxxxxxxxxx
Old-return-path: <mod1@xxxxxxxxxx>
Resent-date: Mon, 27 Aug 2007 07:43:22 -0600 (MDT)
Resent-from: tesla@xxxxxxxxxx
Resent-message-id: <R0ein2p5D_E.A.SnB.6Tt0GB@chip1>
Resent-sender: tesla-request@xxxxxxxxxx

---------- Forwarded message ----------
Date: Sun, 26 Aug 2007 13:57:55 -0700
From: Ed Phillips <evp@xxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: ARSG Motors (fwd)

<>I just used a 12 DC motor from a radio controlled car. I controlled its
>  speed with a variable DC supply. Was fine for my 1KVA system. Why do
>  these
>  things need to be so big?

Because people run power levels greater than 1KVA?"

    No - just because bigger diameter wheels have lots more wind 
friction - for a fixed speed varies as greater than the cube of the 
diameter.  8" diameter would have more than 8 times the drag of a 4" one. 

Ed

Prev by Date: Re: wanted 15kv 120ma transformer (fwd)
Next by Date: Re: 555 Timer program (fwd)
Previous by thread: Re: ARSG Motors (fwd)
Next by thread: RE: ARSG Motors (fwd)
Index(es):
- Date
- Thread