climb performance Jet vs Prop

I'm not convinced that it is right.

Vx occurs at the airspeed where excess thrust is maximized, while Vy
occurs at the airspeed where excess power is maximized. Off the top of my
head, I don't see any reason to believe that for a jet, that it's a given
that maximum excess thrust would occur at a constant airspeed with respect
to altitude.

The ***TAS*** would definitely increase, but the drag/thrust curve moves to
the right rather than to the right and up like the power required curve. As
far as I can tell, and I'm basing it (probably WAY too much) on the
interactive program found at this page
http://www.professionalpilot.ca/aero.../climb_jet.htm, the
***IAS*** remains almost constant for a jet.

Confusing stuff.

"xerj" wrote in message
...
The ***TAS*** would definitely increase,

We were talking about IAS. I didn't change that.

but the drag/thrust curve moves to the right rather than to the right and
up like the power required curve. As far as I can tell, and I'm basing it
(probably WAY too much) on the interactive program found at this page
http://www.professionalpilot.ca/aero.../climb_jet.htm,
the ***IAS*** remains almost constant for a jet.

Got an example that doesn't require the installation of an ActiveX control?
I have, against my better judgment, already succumbed to Java and Flash, but
I draw the line at adding Shockwave to the mix.

Also note that "remains almost constant" isn't the same as "stays the same".

Confusing stuff.

It's only confusing to those who haven't studied it enough to have an
intuitive sense of how things work.

Of course, that describes most of us (including myself). But still, it
seems to me that in aerodynamics particularly, most analysis winds up being
based on some fairly simple principles. The trick is knowing how to apply
them.

Pete

No, I don't have an example without the need for shockwave.

I'll trawl around and see if I can can up with something.