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Doug Taylor · October 2nd, 2003, 21:45

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I don't know what it would be called in a big jet, but what is your Vy?

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Best angle, I think, but the standard profile is 250 until 10k, then about 300 to 330 until reaching your cruise mach, and then maintaining that until cruise altitude.

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What was specifically interested in is what would be your airspeed and decent rate in fpm in a large aircraft with no power? Do those things glide much?

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Probably depends on your airspeed when you start and the type aircraft. Like an MD-88 has a good descent rate, whereas the 737 is like a Grob motorglider.

But yes, they'll descend pretty well power off, but as well as a 150,000 chunk of metal will.

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Can a big jet or fighter recover from a power off stall?

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The trick is not to stall the aircraft!

You figure after the "STALL!" aural warning, then the stick shaker, and then the stick pusher, you'd have gotten the hint. But it's usually not a "good" idea to fully stall a swept wing jet.

October 2nd, 2003, 21:45	#11
Doug Taylor Agent Smith Join Date: Dec 1969 Location: KSDL Posts: 41,977 Blog Entries: 1	Re: Vy or best glide [ QUOTE ] I don't know what it would be called in a big jet, but what is your Vy? [/ QUOTE ] Best angle, I think, but the standard profile is 250 until 10k, then about 300 to 330 until reaching your cruise mach, and then maintaining that until cruise altitude. [ QUOTE ] What was specifically interested in is what would be your airspeed and decent rate in fpm in a large aircraft with no power? Do those things glide much? [/ QUOTE ] Probably depends on your airspeed when you start and the type aircraft. Like an MD-88 has a good descent rate, whereas the 737 is like a Grob motorglider. But yes, they'll descend pretty well power off, but as well as a 150,000 chunk of metal will. [ QUOTE ] Can a big jet or fighter recover from a power off stall? [/ QUOTE ] The trick is not to stall the aircraft! You figure after the "STALL!" aural warning, then the stick shaker, and then the stick pusher, you'd have gotten the hint. But it's usually not a "good" idea to fully stall a swept wing jet.