[Steam-engine] MAWP VFT vs. Horizontal Firetube

[Richard Strobel]

Thanks Blake!  From what our chief says now, A VFT will have several 
calculations in the overall MAWP calculation.  Cylinder, Stayed round 
surface and I believe the ogee's top and bottom.


Regards,
Rick


----- Original Message ----- 
From: "Blake" <blake at little-mountain.com>
To: "Steam-engine mailing list" <steam-engine at lists.stationary-engine.com>
Sent: Wednesday, March 30, 2011 7:32 PM
Subject: Re: [Steam-engine] MAWP VFT vs. Horizontal Firetube


> The only difference I can see in making calculations between the two
> is that the vertical boiler has no flat sheets other than the tube
> sheets. The locomotive boiler has flat sheets that need to be
> reinforced with staybolts, stayrods, or gussets. The flat sheets are
> inherently weaker than rounded sheets.
>
> Blake
>
> Some of my sites
> http://little-mountain.com
> http://cletrac.org
> http://petroleumhistory.com
>
>
>
>
> On Mar 30, 2011, at 9:48 AM, Richard Strobel wrote:
>
> > G'day all;
> >   Could someone please explain the difference in calculating the
> > MAWP on a
> > VFT boiler vs. the common horizontal traction boiler (Loco style)?
> >
> > Thanks much and life is good
> >
> > RickinMt.
> >
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