[modeleng] Re: American Diesel Loco Drawings - F7 for Example
- From: "R.L. Roebuck" <rlr20@xxxxxxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Wed, 27 Oct 2004 12:44:22 +0100 (BST)
Hi there Cliff,
I had a play a number of years back, and built myself a 3.5" gauge 0-4-0
electric loco, to a narrow gauge outline with a friend.
After a bit of playing aound, I shoe horned a sinclair C5 motor into it,
buy trimming everything down, including the rotor shaft at both ends.
The battery for it went in the driving trolley, the rear of which was
built to resemble a box van.
In order to aid traction, we mounted a steel block under the loco, which
measured something like 4*3*2".
I still remember when we went to test out the chassis for the first time.
Most people figured that because of its small size, we'd need to "lean on
it a bit to get it get some grip" and the best prognosis was that it would
only pull its driver.
A few laps later when it pulled out of the station with three passenger
trollies and approx half a tonne behind it (without anyone having to "lean
on it a bit") the critics were silenced.
Before I moved away from Norwich, it ran for few years on the majority of
running days in the year at the Easton Park track (public running every
Sunday May to September) for about 90 minutes each time, until its battery
went flat.
Having said all of that - your comments do make sense, its just that I'm
keen to stick to 3.5" gauge.
Yours,
Rich.
On Wed, 27 Oct 2004, Clif Walker wrote:
> Hi Rich andAll,
>
> I think that the snag with 3.5"gauge electric locos is getting worthwhile
> battery power into them.It may just work with an American outline but is
> impossible with English.Then if you cannot get the batteries in you have a
> problem with getting sufficient weight for traction purposes.
> The problem also comes up of physically getting in adequate size motors
> because unfortunately the amount of power required is dictated by the size
> of human beings which cannot be scaled down.
> As 3.5" frames are too narrow to get the motors in between them they have to
> be mounted on top of the bogies,which then eats into the space where you
> want to put the batteries.
> It will require a lot of scheming out but I think that you may have to bite
> the bullet and go for a 5" gauge F7.
> Now that would be some loco.
>
> Regards
>
> Clif
> ----- Original Message -----
> From: "R.L. Roebuck" <rlr20@xxxxxxxxxxxxx>
> To: <modeleng@xxxxxxxxxxxxx>
> Sent: Tuesday, October 26, 2004 5:56 PM
> Subject: [modeleng] American Diesel Loco Drawings - F7 for Example
>
>
> > Hi there All,
> >
> > I'm currently toying with the idea of building a 3.5" gauge electric loco,
> > with an American Diesel loco outline.
> >
> > Not knowing anything much about the loco's that you guys have over
> > there in the USA have, I perused through the various web pages, and the F7
> > looks like the kind of thing I'm after...
> >
> >
> http://images.google.co.uk/images?q=F7%20diesel&hl=en&lr=&safe=off&sa=N&tab=
> wi
> >
> > The only thing is, I can't seem to find any drawings of it (or anything
> > like it on the web).
> >
> > Can anyone suggest where I could find some drawings, either online, or in
> > books, etc?
> >
> > Any suggestions gratefully received.
> >
> > Yours,
> >
> >
> > Rich.
> >
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