Re: Wouldn't it be easier...

lou_at_cadence.com
Date: 01/13/05 

Date: 12 Jan 2005 16:42:47 -0800

John Halpenny wrote:
> lou@cadence.com wrote:
> >
> > But the central CBC on the heavy throttles back much later than
than
> > the CBC on the single. So you get into the regime where you have
both
> > a high flow rate and not much liquid in the tank. All the heavy
CBCs
> > run this way, but the single does not (when the tank is low, it's
> > running at low flow rates).
> >
> As the tank empties, there is more and more chance that not enough
> oxygen will flow into the line to match what the pump is sucking out.
> The problem is worse if the acceleration is smaller. Could it be that
> the engine throttles back near the end because they know there will
be
> flow problems, and this time they didn't do it soon enough?

One of the descriptions of the Delta-4 stated that the single version
throttles back early to keep the acceleration from exceeding 5Gs.
Perhaps this disguised a problem where you can't keep full power to
fuel depletion even if you want to (and as the Heavy tried to do) ?
Lou Scheffer