New Landing Technique?
07-06-2008 | 09:08 AM
#1
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New Landing Technique?
I wanted to know if any of you freight dawgs have heard of this technique or used this method?
New Way To Land Planes May Save Fuel : NPR
New Way To Land Planes May Save Fuel : NPR
07-06-2008 | 09:17 AM
#2
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From: Capt: Lav Truck
Yeah we have been using the CDA's at certain airports for a while but its just a test procedure in low traffic times right now, without the accompanied magic that will follow. Its designed to eventually be used in high traffic flow times with the merging and spacing feature on the EFB/ADS-B so we will eventually be responsible for or own separation as well, but thats some years down the road for sure. I have seen the merging and spacing thing in action and its pretty cool, but throw in some wx and it goes out the window. If definately does add to your workload on approach, which is not such great thing.
As for how much fuel it actually saves, I have no idea but I'm sure it will add up.
As for how much fuel it actually saves, I have no idea but I'm sure it will add up.
Last edited by viktorbravo; 07-06-2008 at 09:28 AM.
07-06-2008 | 09:23 AM
#3
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I wanted to know if any of you freight dawgs have heard of this technique or used this method?
New Way To Land Planes May Save Fuel : NPR
New Way To Land Planes May Save Fuel : NPR
Here’s part of an email I got a few months back.
UPS Involvement critical to reasearch's success.
Massachusetts Institute of Technology Press Release
An experimental procedure that substantially reduces the noise of descending aircraft is one step closer to regular use by commercial air carriers, thanks to a research team led by Professor John-Paul Clarke of the Massachusetts Institute of Technology. In addition to improving the lives of people living and working along airport approach routes, the new procedure reduces aircraft engine emissions and fuel consumption, and costs relatively little to implement.
The team of researchers from Boeing, the FAA, the Louisville Regional Airport Authority, MIT, NASA, and UPS, have successfully flight tested a procedure where aircraft remain at cruise altitude until relatively close to an airport, and then make an even, continuous descent to the runway. The result is lower noise, reduced fuel burn and emissions, and even slightly shorter flights, as aircraft operate at lower power settings, stay at higher altitudes, maintain higher speeds, and take more direct — and thus shorter — paths to the runway.
In traditional approaches, aircraft begin descending many miles from the runway, spending substantial time at relatively low altitudes. These paths are analogous to a staircase: planes descend in steps requiring noisy engine thrust increases every time they level out.
The new procedure was first flight tested at Louisville International Airport in the fall of 2002. The researchers compared the noise between a pair of test aircraft, two UPS Boeing 767 cargo aircraft landing consecutively on the same path. One 767 followed a traditional approach; the other, a continuous descent approach (CDA). The study revealed that a CDA approach reduced noise an average of three to six decibels. A 3-decibel difference is appreciably noticeable to the human ear while a 10-decibel reduction equates to 50 percent less noise.
Following the success of the 2002 test, the researchers have now tried a more complex procedure designed for multiple aircraft in scheduled service. In a two-week trial this September, CDA procedures were applied again at Louisville – this time to 126 scheduled flights. The tests demonstrated that air traffic controllers could handle the 12 to 14 similarly equipped flights per night using the CDA procedure. Although all sequences of aircraft designated for the trial were Boeing 757s or 767s, controllers occasionally blended the trial aircraft with other aircraft types arriving on traditional approaches during the same period, maintaining appropriate separation between aircraft. The tests also confirmed the environmental and economic benefits of the CDA procedure.
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PARTNER is lead by MIT and comprises eight core universities: MIT, Boise State University, Florida International University, the PennsylvaniaStateUniversity, PurdueUniversity, StanfordUniversity, University of CentralFlorida, and University of Missouri-Rolla.
...
07-06-2008 | 12:05 PM
#6
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From: Sr. VP of button pushing
You need thousands of dollars of equipment? For years in the middle of the night I got direct to the airport, pilot's discretion one one thousand, get handed off to approach and on down to three, call the airport, cleared for the visual, spool up at 1000 AGL into YIP, TOL and FWA. Even a straight in ILS if you time it right. Granted SDF is busier but the idea has been around a long time.
07-06-2008 | 03:02 PM
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From: Capt: Lav Truck
True, but I think the idea is to get much tighter spacing with the ADS-B while keeping identical fuel efficient descent profiles for all inbound aircraft. In addition aircraft will spend less time in the air, burning less fuel than when subjected to normal ATC in trail spacing instructions.
Obviously when youre the only jet approaching an airport it doesnt matter, pull em back to idle at cruise, spool up at a grand, land, very efficient.
The downside is that now we will be responsible for maintaining the seperation criteria.
Obviously when youre the only jet approaching an airport it doesnt matter, pull em back to idle at cruise, spool up at a grand, land, very efficient.
The downside is that now we will be responsible for maintaining the seperation criteria.
07-06-2008 | 05:17 PM
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07-06-2008 | 06:04 PM
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From: Dispersing Green House Gasses on a Global Basis
Make sure your lapbelts are tight or you may end up in your copilots lap in the turn
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