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Old December 19th 03, 07:57 PM
Kevin Darling
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David Megginson wrote in message t.cable.rogers.com...
Kevin Darling wrote:
It's not that far off -- I think (but am not certain) that a
fully-loaded DC-9 has a best climb angle of around 650 ft/nm, while a
small single-engine plane will manage something like 400-600 ft/nm at Vx
depending on horsepower and load. Of course, the DC-9 has a much better
climb *rate*, but that's not the concern here [...]


I could be wrong, too, but I think even a loaded DC-9 can manage at
least 1000-1500fpm... and might have to do so for noise abatement
around the airport.


You need to know the forward speed as well. At 120 kt, 1500 fpm would be
750 ft/nm; at 180 kt, it would be only 500 ft/nm (but I think that the DC-9
can do better than that). In either case, the climb angle is not that much
greater than that of a light single.


Yes, thanks. I goofed and posted just before I read that you were
talking about ft/nm versus ft/min. And yep, the DC-9 can climb at up
to 2900 fpm.

Sorry 'bout the confusion.

Best regards,
Kevin