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The perfect approach



 
 
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  #1  
Old November 26th 04, 02:17 AM
Capt.Doug
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Posts: n/a
Default The perfect approach

It was a beautiful day in land that Mickey built- 76 degrees with full sun
while the northern folks got their first freezing blast of winter. We headed
off-shore over the islands of the Caribbean. I was on the second radio
talking to old friends and catching up on news from all the islands that I
don't get to visit much anymore. Caught up with some old friends on the
air-to-air frequencies as well. The flight levels were smooth and the
visibilty was excellent.

Then it came time for top of descent. This time was going to be sweet. There
was no complicated arrival procedure and there was no traffic in front of
us. We were number one. The center controller cleared us to decend from
FL330 to 11,000' at pilot's discretion.

One of the keys to good fuel economy in a jet is to stay high as long as you
can and then descend at idle thrust. I looked at our weight, and tailwind.
As I slowly pulled the throttles back to idle, the nose slowly dropped to
maintain airspeed. I switched from Mach airspeed to indicated airspeed
around FL240. I monitored the DME's ratio to the altimeter. It was holding
constant. I leveled off at 11,000' and let the airspeed bleed off to 250
KIAS. We switched to the approach controller who cleared us down to 3000'
and direct to the outer marker. The power was still at idle, the speedbreaks
were still stowed, and the approach was looking good.

I called the field in sight from 20 miles out and was cleared for the
visual. I pulled the nose up slightly to bleed the speed down to 200 KIAS
for the airport traffic area. At 1500' the slats and flaps were extended.
Then the gear and the rest of the flaps. The old-timers taught me to carry
an extra 20 knots into the flare when doing an idle-thrust landing. That
prevents you from developing an excessive sink-rate which prevents the gear
from going through the wing.

I bled off the extra airspeed and more in the flare. The touchdown was
sweet. There was just a hint of a bunny-hop before the ground-spoilers
popped, but the runway is so bumpy that the passengers probably didn't
notice. Without moving the throttles from idle, I popped the reversers and
let it roll to the end of the runway. We rolled onto the taxiway without
using the brakes. It was a perfect idle-thrust approach from top-of-descent
to the gate.

I spent the rest of the day sitting with my crew at a bar on the beach
enjoying the little things in life. Over the bar was a television. The folks
on the television were surrounded by snow. I bet their day wasn't near as
perfect as mine.

D.


  #2  
Old November 26th 04, 02:59 AM
Jay Beckman
external usenet poster
 
Posts: n/a
Default

"Capt.Doug" wrote in message
...
It was a beautiful day in land that Mickey built- 76 degrees with full sun
while the northern folks got their first freezing blast of winter.


I assume since you refer to the "northern folks" that you are referring to
the "Land that Mickey built - SOUTH" as opposed to the "Land that Mickey
built - WEST?"

Jay


  #3  
Old November 26th 04, 05:00 AM
Franklin Newton
external usenet poster
 
Posts: n/a
Default

Well done Capt Doug.
"Capt.Doug" wrote in message
...
It was a beautiful day in land that Mickey built- 76 degrees with full sun
while the northern folks got their first freezing blast of winter. We

headed
off-shore over the islands of the Caribbean. I was on the second radio
talking to old friends and catching up on news from all the islands that I
don't get to visit much anymore. Caught up with some old friends on the
air-to-air frequencies as well. The flight levels were smooth and the
visibilty was excellent.

Then it came time for top of descent. This time was going to be sweet.

There
was no complicated arrival procedure and there was no traffic in front of
us. We were number one. The center controller cleared us to decend from
FL330 to 11,000' at pilot's discretion.

One of the keys to good fuel economy in a jet is to stay high as long as

you
can and then descend at idle thrust. I looked at our weight, and tailwind.
As I slowly pulled the throttles back to idle, the nose slowly dropped to
maintain airspeed. I switched from Mach airspeed to indicated airspeed
around FL240. I monitored the DME's ratio to the altimeter. It was holding
constant. I leveled off at 11,000' and let the airspeed bleed off to 250
KIAS. We switched to the approach controller who cleared us down to 3000'
and direct to the outer marker. The power was still at idle, the

speedbreaks
were still stowed, and the approach was looking good.

I called the field in sight from 20 miles out and was cleared for the
visual. I pulled the nose up slightly to bleed the speed down to 200 KIAS
for the airport traffic area. At 1500' the slats and flaps were extended.
Then the gear and the rest of the flaps. The old-timers taught me to carry
an extra 20 knots into the flare when doing an idle-thrust landing. That
prevents you from developing an excessive sink-rate which prevents the

gear
from going through the wing.

I bled off the extra airspeed and more in the flare. The touchdown was
sweet. There was just a hint of a bunny-hop before the ground-spoilers
popped, but the runway is so bumpy that the passengers probably didn't
notice. Without moving the throttles from idle, I popped the reversers and
let it roll to the end of the runway. We rolled onto the taxiway without
using the brakes. It was a perfect idle-thrust approach from

top-of-descent
to the gate.

I spent the rest of the day sitting with my crew at a bar on the beach
enjoying the little things in life. Over the bar was a television. The

folks
on the television were surrounded by snow. I bet their day wasn't near as
perfect as mine.

D.




  #4  
Old November 26th 04, 08:38 PM
mindenpilot
external usenet poster
 
Posts: n/a
Default

That was a cool story, Capt. Doug.
I'm just a 100 hour VFR pleasure-flyer, and I know absolutely nothing about
jets and such.
So, please continue to post this kind of cool stuff!
I find it very interesting!

Adam
N7966L
Beech Super III


  #5  
Old December 3rd 04, 06:25 PM
Peter MacPherson
external usenet poster
 
Posts: n/a
Default

Great story. Must be a really cool feeling going from FL330
to touchdown at idle thrust. The company was also happy
with the fuel savings..... ; )



"Capt.Doug" wrote in message
...
It was a beautiful day in land that Mickey built- 76 degrees with full sun
while the northern folks got their first freezing blast of winter. We
headed
off-shore over the islands of the Caribbean. I was on the second radio
talking to old friends and catching up on news from all the islands that I
don't get to visit much anymore. Caught up with some old friends on the
air-to-air frequencies as well. The flight levels were smooth and the
visibilty was excellent.

Then it came time for top of descent. This time was going to be sweet.
There
was no complicated arrival procedure and there was no traffic in front of
us. We were number one. The center controller cleared us to decend from
FL330 to 11,000' at pilot's discretion.

One of the keys to good fuel economy in a jet is to stay high as long as
you
can and then descend at idle thrust. I looked at our weight, and tailwind.
As I slowly pulled the throttles back to idle, the nose slowly dropped to
maintain airspeed. I switched from Mach airspeed to indicated airspeed
around FL240. I monitored the DME's ratio to the altimeter. It was holding
constant. I leveled off at 11,000' and let the airspeed bleed off to 250
KIAS. We switched to the approach controller who cleared us down to 3000'
and direct to the outer marker. The power was still at idle, the
speedbreaks
were still stowed, and the approach was looking good.

I called the field in sight from 20 miles out and was cleared for the
visual. I pulled the nose up slightly to bleed the speed down to 200 KIAS
for the airport traffic area. At 1500' the slats and flaps were extended.
Then the gear and the rest of the flaps. The old-timers taught me to carry
an extra 20 knots into the flare when doing an idle-thrust landing. That
prevents you from developing an excessive sink-rate which prevents the
gear
from going through the wing.

I bled off the extra airspeed and more in the flare. The touchdown was
sweet. There was just a hint of a bunny-hop before the ground-spoilers
popped, but the runway is so bumpy that the passengers probably didn't
notice. Without moving the throttles from idle, I popped the reversers and
let it roll to the end of the runway. We rolled onto the taxiway without
using the brakes. It was a perfect idle-thrust approach from
top-of-descent
to the gate.

I spent the rest of the day sitting with my crew at a bar on the beach
enjoying the little things in life. Over the bar was a television. The
folks
on the television were surrounded by snow. I bet their day wasn't near as
perfect as mine.

D.




  #6  
Old December 3rd 04, 09:01 PM
Maule Driver
external usenet poster
 
Posts: n/a
Default

That was sweet! I'd buy the good Captain a round for that one.

Thanks for the bump -- I missed it the first time around.

"Peter MacPherson" wrote in message
news:Vc2sd.137670$5K2.43770@attbi_s03...
Great story. Must be a really cool feeling going from FL330
to touchdown at idle thrust. The company was also happy
with the fuel savings..... ; )



"Capt.Doug" wrote in message
...
It was a beautiful day in land that Mickey built- 76 degrees with full

sun
while the northern folks got their first freezing blast of winter. We
headed
off-shore over the islands of the Caribbean. I was on the second radio
talking to old friends and catching up on news from all the islands that

I
don't get to visit much anymore. Caught up with some old friends on the
air-to-air frequencies as well. The flight levels were smooth and the
visibilty was excellent.

Then it came time for top of descent. This time was going to be sweet.
There
was no complicated arrival procedure and there was no traffic in front

of
us. We were number one. The center controller cleared us to decend from
FL330 to 11,000' at pilot's discretion.

One of the keys to good fuel economy in a jet is to stay high as long as
you
can and then descend at idle thrust. I looked at our weight, and

tailwind.
As I slowly pulled the throttles back to idle, the nose slowly dropped

to
maintain airspeed. I switched from Mach airspeed to indicated airspeed
around FL240. I monitored the DME's ratio to the altimeter. It was

holding
constant. I leveled off at 11,000' and let the airspeed bleed off to 250
KIAS. We switched to the approach controller who cleared us down to

3000'
and direct to the outer marker. The power was still at idle, the
speedbreaks
were still stowed, and the approach was looking good.

I called the field in sight from 20 miles out and was cleared for the
visual. I pulled the nose up slightly to bleed the speed down to 200

KIAS
for the airport traffic area. At 1500' the slats and flaps were

extended.
Then the gear and the rest of the flaps. The old-timers taught me to

carry
an extra 20 knots into the flare when doing an idle-thrust landing. That
prevents you from developing an excessive sink-rate which prevents the
gear
from going through the wing.

I bled off the extra airspeed and more in the flare. The touchdown was
sweet. There was just a hint of a bunny-hop before the ground-spoilers
popped, but the runway is so bumpy that the passengers probably didn't
notice. Without moving the throttles from idle, I popped the reversers

and
let it roll to the end of the runway. We rolled onto the taxiway without
using the brakes. It was a perfect idle-thrust approach from
top-of-descent
to the gate.

I spent the rest of the day sitting with my crew at a bar on the beach
enjoying the little things in life. Over the bar was a television. The
folks
on the television were surrounded by snow. I bet their day wasn't near

as
perfect as mine.

D.






  #7  
Old December 4th 04, 02:13 PM
Friedrich Ostertag
external usenet poster
 
Posts: n/a
Default

Hi NG,

question to the group:

Nice story, and obviously very skilled performance, but I always
thought jets were supposed to land with about 70-80% power on, to be
prepared for a potential go-around? (Because spool-up time from idle
would be prohibitive in that case?)

thanks,
Friedrich

...
It was a beautiful day in land that Mickey built- 76 degrees with
full sun while the northern folks got their first freezing blast of
winter. We headed
off-shore over the islands of the Caribbean. I was on the second
radio talking to old friends and catching up on news from all the
islands that I don't get to visit much anymore. Caught up with some
old friends on the air-to-air frequencies as well. The flight levels
were smooth and the visibilty was excellent.

Then it came time for top of descent. This time was going to be
sweet. There
was no complicated arrival procedure and there was no traffic in
front of us. We were number one. The center controller cleared us to
decend from FL330 to 11,000' at pilot's discretion.

One of the keys to good fuel economy in a jet is to stay high as
long as you
can and then descend at idle thrust. I looked at our weight, and
tailwind. As I slowly pulled the throttles back to idle, the nose
slowly dropped to maintain airspeed. I switched from Mach airspeed
to indicated airspeed around FL240. I monitored the DME's ratio to
the altimeter. It was holding constant. I leveled off at 11,000' and
let the airspeed bleed off to 250 KIAS. We switched to the approach
controller who cleared us down to 3000' and direct to the outer
marker. The power was still at idle, the speedbreaks
were still stowed, and the approach was looking good.

I called the field in sight from 20 miles out and was cleared for

the
visual. I pulled the nose up slightly to bleed the speed down to 200
KIAS for the airport traffic area. At 1500' the slats and flaps were
extended. Then the gear and the rest of the flaps. The old-timers
taught me to carry an extra 20 knots into the flare when doing an
idle-thrust landing. That prevents you from developing an excessive
sink-rate which prevents the gear
from going through the wing.

I bled off the extra airspeed and more in the flare. The touchdown
was sweet. There was just a hint of a bunny-hop before the
ground-spoilers popped, but the runway is so bumpy that the
passengers probably didn't notice. Without moving the throttles from
idle, I popped the reversers and let it roll to the end of the
runway. We rolled onto the taxiway without using the brakes. It was
a perfect idle-thrust approach from top-of-descent
to the gate.

I spent the rest of the day sitting with my crew at a bar on the
beach enjoying the little things in life. Over the bar was a
television. The folks
on the television were surrounded by snow. I bet their day wasn't
near as perfect as mine.

D.


--
for personal email please remove "entfernen" from my adress

  #8  
Old December 4th 04, 10:31 PM
Capt.Doug
external usenet poster
 
Posts: n/a
Default

"Friedrich Ostertag" wrote in message I always
thought jets were supposed to land with about 70-80% power on, to be
prepared for a potential go-around? (Because spool-up time from idle
would be prohibitive in that case?)


Perhaps you are confusing RPM with thrust? The correlation is not linear.
Normally the RPM is between 70% to 80% on approach, but the thrust around
20% to 25%. You are correct that normally the engines are somewhat spooled
up to provide adequate acceleration if needed. Hence the reason I carried an
extra 20 knots of airspeed into the flare when using idle thrust.

D.


  #9  
Old December 5th 04, 02:47 PM
Friedrich Ostertag
external usenet poster
 
Posts: n/a
Default

Hi Doug,

"Friedrich Ostertag" wrote in message I always
thought jets were supposed to land with about 70-80% power on, to be
prepared for a potential go-around? (Because spool-up time from idle
would be prohibitive in that case?)


Perhaps you are confusing RPM with thrust?


seems to be the case, as far as the figures are concerned.

The correlation is not
linear. Normally the RPM is between 70% to 80% on approach, but the
thrust around 20% to 25%. You are correct that normally the engines
are somewhat spooled up to provide adequate acceleration if needed.
Hence the reason I carried an extra 20 knots of airspeed into the
flare when using idle thrust.


thanks for the explanation!

regards,
Friedrich

--
for personal email please remove "entfernen" from my adress

 




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