simple analog fuel injection comments from CSH, HQ

[Bruce Plecan]

-----Original Message-----
From: garfield at pilgrimhouse.com <garfield at pilgrimhouse.com>
Subject: Re: simple analog fuel injection comments from CSH, HQ


>Well, the art by now is well-perfected in the big birds, but for the
>eXperimentals that try to use normal auto ECMs with NO backup or
>redundancy, you're just twirlin the cylinder and snappin the trigger,
>Russian-like. There are static phenom that occur in the air, not to
>mention lightnin EMPs causing all the cpus to freak. When you're in the
>air, things are DIFFERENT than when you're on the ground, as far as what
>kinda glitch exposure you're able to tolerate. And since an airplane
>cain't "limp home" on 35-50HP like a car can, "limp home mode" takes on
>an altogether new meaning when contemplating using a stock programmed
>ECM in an airplane. It's more like, if you end up in "limp home mode",
>that's the state your body's gonna be in when you finally get home. Heh.
>Hence XA's accent on fully dual-redundant, dirt simple controllers for
>BOTH IGN & EFI. Another example of how just a slightly different mission
>statement can alter your implementation enormously.


Lots of snipping
Lightning as a concern, now I'm beginning to understand you point
of view.  Only makes sense, on Discovery Channel they show a F-102,
or 106 that they were flying thru lightning storms.  Scary, That's with
a metal shell, non-conductive I can't begin to imagine.

>Anyway, as in ANY interdisciplinary domain, lots to learn from either
>side of the fence.
>
>Gar
>
Cheers
Bruce