What are cowl flaps?

"Mxsmanic" wrote in message

What are cowl flaps for, and how are they used?

A) Buy a book.

or

B) Pay a flight instructor for an hour, and ask him.

Don't forget augmenter tubes, pressure cowls, and the biggy,
how do you cool a jet engine?



"John Gaquin" wrote in message
. ..
|
| "Mxsmanic" wrote in message
|
| What are cowl flaps for, and how are they used?
|
| A) Buy a book.
|
| or
|
| B) Pay a flight instructor for an hour, and ask him.
|
|

Gary,

You're welcome. (It's the first page that comes up if you google "cowl
flaps".)


Yeah, but that would make it impossible to start a long-winded discussion
with real pilots about how backwards and dangerous the engines on their
planes are.

--
Thomas Borchert (EDDH)

5 or 10 knots? What are they freakn' barn doors or something? :-)
Sure your not fibbing?



Ron Natalie wrote:

In my plane, I can get another five to ten knots when
I close them.

Mxsmanic wrote:
Ron Natalie writes:

They control cooling air through the engine cowls. They are flap
shaped "valves" if you want on the outflow of the cooling air.
When open, you get more cooling air but that also means more
drag. In my plane, I can get another five to ten knots when
I close them. I take-off and climb with them open and close
them at cruise.

Do you do this more or less routinely, or do you actually look at the
engine temperatures to see when to open or close them? I get the
impression that it's not a super-critical item except in a few
circumstances.

I always open them before takeoff. With my old engine/cooling
setup it was really sensitive, so yes, I had to watch the the
temperature when closing them. On my new engine/cooling design
it runs pretty cool so I just shut them as a matter of routine
when I get to altitude. I do check the CHT and Oil Temp
periodically to make sure it's in the green.

Recently, tjd posted:

I went to a restaurant and they had these things called "flapjacks".
I'm so confused, are they some sort of aerodynamic device as the name
implies, or something you use to hold up the airplane while you change
those little black round things (Sorry I can't remember the name of
those!)? And what are they doing on a menu? How could I possibly
answer this question without annoying a large number of people? I
tried typing "flapjacks" into my Google simulator because I'm too
scared of the actual Google. But my computer crashed, imagine what
the real Google might have done!

LOL!

This is the response I was looking for!

Neil

Thomas Borchert wrote:
You're welcome. (It's the first page that comes up if you google "cowl
flaps".)

Yeah, but that would make it impossible to start a long-winded discussion
with real pilots about how backwards and dangerous the engines on their
planes are.

It would also make it impossible to torture us with responses like that
one. Perhaps you could try adding to a discussion instead of dissing
it. Even "real" pilots argue over the safety of GA engines.

Some people are good at Googling. It could be argued that there's no
reason to ever again see questions and answers in any group, since
somewhere out there is a reply. But that wouldn't be any fun, as
everyone must have their say :-)

There's also a lot of people who can't spend much time Googling, since
they're still on dialup. They do things the old way, posting multiple
pre-made responses at once. I think that actually made for more
thought out discussions, since people couldn't just make knee-jerk
responses like you see around here.

Kev

Recently, Kev posted:

Thomas Borchert wrote:
You're welcome. (It's the first page that comes up if you google
"cowl flaps".)

Yeah, but that would make it impossible to start a long-winded
discussion with real pilots about how backwards and dangerous the
engines on their planes are.

It would also make it impossible to torture us with responses like
that one.

Or, your response to Thomas', or my response to yours. ;-)

When the original topic's question can be thoroughly answered by reading
the first hit of a Google search, there really isn't much to add to the
"discussion". It's not like there will be conflicting opinions about this
question. So, might as well make it enjoyable for the rest of us who have
grown pretty tired of such pointless engagements.

Neil

Neil Gould wrote:
Recently, Kev posted:
Thomas Borchert wrote:
Yeah, but that would make it impossible to start a long-winded
discussion with real pilots about how backwards and dangerous the
engines on their planes are.

It would also make it impossible to torture us with responses like
that one.

Or, your response to Thomas', or my response to yours. ;-)

LOL. Exactly ;-)

When the original topic's question can be thoroughly answered by reading
the first hit of a Google search, there really isn't much to add to the
"discussion". It's not like there will be conflicting opinions about this
question. So, might as well make it enjoyable for the rest of us who have
grown pretty tired of such pointless engagements.

Yep, if people would just let him get answered by those interested
enough to answer with a real reply, then the threads would be small and
we'd all be in good shape.

Regards, Kev

Kev wrote:
Neil Gould wrote:
Recently, Kev posted:
Thomas Borchert wrote:
Yeah, but that would make it impossible to start a long-winded
discussion with real pilots about how backwards and dangerous the
engines on their planes are.
It would also make it impossible to torture us with responses like
that one.

Or, your response to Thomas', or my response to yours. ;-)

LOL. Exactly ;-)

When the original topic's question can be thoroughly answered by reading
the first hit of a Google search, there really isn't much to add to the
"discussion". It's not like there will be conflicting opinions about this
question. So, might as well make it enjoyable for the rest of us who have
grown pretty tired of such pointless engagements.

Yep, if people would just let him get answered by those interested
enough to answer with a real reply, then the threads would be small and
we'd all be in good shape.

Regards, Kev

But as has been pointed out so many times, often as not he then replies
with a statement about how he is right and the poster is wrong. His
answers are often wrong and if not corrected will be putting out bad
information in a forum that prides itself on correct information.