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Re: Phylogeny of Maniraptora

Graydon wrote:
> If a Concorde has an engine flameout on landing, bad things happen, as I
> understand it; it needs the thrust to maintain the maneuver,

It doesn't have to.  The space shuttle does much the same thing, and
does it dead-stick.

>  (It
> doesn't because there's no point to doing so, but it *can*.)

I agree, it can -- but doesn't have to.

> At least, I was assuming that when I gave you that answer; that there's
> internal energy, in the form of jet fuel, being to generate thrust.

the conversion of potential energy to kinetic, obtained by the simple
process of descending -- works just as well.