any merit in running dual battery packs ?

[Bill Glaze]

Most of the twins I know of will maintain...Even the Apache was supposed 
to maintain 4400ft. on a single engine.  Only one I am aware of, (mark 
that statement) that wouldn't maintain some altitude on one engine, was 
the Citabria twin.  Double your pleasure, Double your fun...........as I 
remember the Advertisement.........or was that for chewing gun?  Oh, 
Well.......another RvP Senior Moment.........
Bill Glaze

Keith Hoard wrote:

> Only if the plane weighs more than 12,500 lbs.  Any certified airplane 
> less than that weight is not required to maintain level flight on a 
> single engine.
>
>  
>
> I don't know what the certification process was back in Lindberg's 
> time, though.
>
>  
>
>  
>
> Keith L. Hoard
>
> Cordova, TN
>
> khoard at midsouth.rr.com
>
>  
>
>  
>
>  
>
> ------------------------------------------------------------------------
>
> From: discussion-request at nsrca.org 
> [mailto:discussion-request at nsrca.org] On Behalf Of Bill Glaze
> Sent: Tuesday, January 25, 2005 12:25 PM
> To: discussion at nsrca.org
> Subject: Re: any merit in running dual battery packs ?
>
>  
>
> Bob:
> Never heard that story.  thanks.  Also, nowadays twin engine airplanes 
> can maintain a safe altitude on a single engine.  Or so they told me 
> when I got my type rating on the 757/767. :-P   Sure hope they weren't 
> kidding me!  Bill Glaze
>
> Bob Richards wrote:
>
> Bill,
>
>  
>
> OTOH, remember the Rutan Voyager? Two centerline engines, the front 
> engine was to be shut off and feathered after it was no longer needed. 
> Rutan wanted to leave the electric starter off, since it would not be 
> needed once it left the ground. The engine maker (Teledyne?) convinced 
> him to keep the starter on, "just in case".
>
>  
>
> Halfway around the world, a fuel managment problem caused the rear 
> engine to momentarily quit, and the nose-down glide prevented the fuel 
> pickup to draw fuel again to the rear engine. The front engine was 
> started again, and once level flight was established the fuel began 
> flowing again to the rear engine. (Best recollection of the story that 
> I can remember from reading Dick Rutan's book).
>
>  
>
> You can never think of all the ways redundancy can pull your a** out 
> of the fire!!
>
>  
>
> Bob R.
>
>
>
> Bill Glaze <billglaze at triad.rr.com> <mailto:billglaze at triad.rr.com> wrote:
>
>     In those days a twin engine airplane couldn't maintain flight on
>     just one engine, in most cases.  So, in his book, (We) Lindbergh
>     stated that twin engines "gave twice as much chance of an engine
>     failure."  The only thing two engines did, was to insure that you
>     had enough power to make it to the crash scene.
>     Bill Glaze
>
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