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From: "Byker" <byker@do~rag.net>
Newsgroups: alt.binaries.pictures.aviation
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In-Reply-To: <XnsA463C65AA37ADRmoore16tampabayrrco@207.246.207.120>
Subject: Re: Gathering of Eagles
Date: Fri, 20 Mar 2015 20:46:09 -0500
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"Robert Moore" wrote in message
news:XnsA463C65AA37ADRmoore16tampabayrrco@207.246.207.120...
>
> I think that you meant to write: "low speed stall".
You're right: "At high altitudes above the optimum level the high speed and
low speed stalls meet each other. This is known as 'coffin corner'. As you
climb your high speed stall starts to come down and your low speed stall
starts to go up. Eventually they will meet if you keep climbing. Climbing
above your optimum is not recommended because of this and especially in
turbulent conditions where you may be flying with only 10knots separation
from those stall speeds."
>
> Bob Moore
> Retired from PanAm and all of those Boeing Jetliners
"As far as I know, there has never been a commercial jet that ever crashed
because of this phenomenon. Its not something the average traveller needs to
worry about, because most commercial jets don't have enough excess thrust to
actually break the sound barrier. Biz-jets like the Citation X do, however,
and that's why they tend to be the ones involved in these types of
accidents. But even in those, you need to actually disable the high-speed
warning system (known as the clacker) to not see it coming, so only idiots
ever see this actually happen."
https://answers.yahoo.com/question/index?qid=20071002025540AAi3DWf
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