FAA Plans to Clean Up the Skies 249
coondoggie writes "On top of its recently announced plan to reduce flight delays, Federal Aviation Administration officials today launched what they hope will be pan U.S. and European Union joint action plan to cut greenhouse gas emissions from aircraft. Specifically the group announced the Atlantic Interoperability Initiative to Reduce Emissions or AIRE — the first large-scale environmental plan aimed at uniting aviation players from both sides of the Atlantic."
Lead In Fuels? (Score:2, Interesting)
The cult of Global Warming (Score:3, Interesting)
We need to face facts: Assuming the global climate is as fragile as all of the chicken littles claim, the US and Europe ceasing all greenhouse emissions right now would do nothing to save us from our gradual slide into superhurricane seasons and worldwide desert conditions, simply because India and China are still developing and couldn't give two shits about all of our initiatives if any cost them money.
I'm still waiting on a testable model (no, not a replica of the globe, trolls) before I jump on this "global warming is both horrible and human-mediated" that so many people seem to have blindly latched onto, drawing absurd conclusions after equating correlation with causation and screaming as shrilly as the most terrifying of harpies when someone expresses so much as a single iota of skepticism at their grand new movement.
My point is this: Cutting our planes' emissions will do nothing but place further financial strains on us, leading to a relative inability to compete with other countries less concerned about the illusory monster of global warming. In addition to this, it will do nothing to make a marked decrease in our own production of carbon dioxide and other gases.
This is more government micromanagement that will do nothing but further bring us down.
Just wondering... (Score:3, Interesting)
Re:The cult of Global Warming (Score:5, Interesting)
Surely there is much yet to discover about our planet and the way it works, and I agree that emissions standards must be scrutinized with respect to their economic impacts...I feel that the knee-jerk reaction Al Gore seems to be trying to illicit is not in our best interests economically, but I don't see any harm in people/companies trying to lessen our impact on the world around us...unless it means killing industry as we know it. There must be a balance of some sort.
Re:impact (Score:4, Interesting)
I've got family of my own in the industry, and I've never heard of any easy fixes for fuel consumption, but I do know airlines have implemented fuel-saving procedures such as taxiing with only one engine on. Given the meager fuel savings that provides but their strong advocacy of it, it just doesn't stand to reason that they would ignore other such easy ways to conserve.
Do you have any data, studies, reports, anything to back up your claims besides some appeals to authority?
Yes (Score:4, Interesting)
There has been literally decades of research, and research is ongoing. There's no single good answer. High compression piston aircraft engines may be able to run on fuels with other additives, but all the reformulations discovered so far are much more toxic than the current 100LL formulation.
Some of the technical solutions include shipping 100LL without the lead (which mid-compression engines can probably run OK), electronic ignition systems, and diesel (jet fuel) retrofit with new engines. Whole new, small aircraft, particularly from Diamond Aircraft, run on Jet-A. The lead additive (TEL) is getting more expensive, so price is encouraging some movement in this direction anyway, particularly outside the U.S.
It's important to keep some perspective here, though. The amount of lead released into the atmosphere by piston aircraft engines is incredibly miniscule, and it's not released in the ways automobiles did (i.e. near the ground, in lung-concentrated ways). There are about 5,000 public airports in the U.S., and the vast majority of those have very limited numbers of aircraft operating on the ground for very brief periods of time. So unless you live on a taxiway at a busy small aircraft airport, and breathe deeply for some years, you're OK.
There are many, many places where environmental protection money would be more wisely spent. The simple act of burning coal, for example, is incredibly, vastly more dangerous than anything the entire piston aircraft engine fleet could do. That said, it would probably make sense for the government to give the engine industry (mainly Lycoming and Continental) a bit of a nudge, telling them to find any solution they wish to stop producing new aircraft engines that run only on leaded fuels by a date certain (say, 10 years out). In all probability they can recertify with a combination of electronic ignition and the same 100LL formulation but without TEL, and they can do that relatively inexpensively. If the feds made every aircraft owner who replaced their engines eligible for fuel tax rebates for a period of, say, 5 years from date of installation, that'd probably get the job done to get the fleet converted. But nobody is in a rush to do this because nobody at the EPA sees a public health problem here.
Re:The cult of Global Warming (Score:5, Interesting)
The first of my heresies says that all the fluff about global warming is grossly exaggerated. Here I am opposing the holy brotherhood of twilight model experts and the crowd of diluted citizens that believe the numbers predicted by their models. Of course they say I have no degree in meteorology and I am therefore not qualified to speak.
But I have studied their climate models and know what they can do. The models solve the equations of fluid dynamics and do a very good job of describing the fluid motions of the atmosphere and the oceans. They do a very poor job of describing the clouds, the dust, the chemistry and the biology of fields, farms and forests. They do not begin to describe the real world that we live in.
The real world is muddy and messy and full of things that we do not yet understand. It is much easier for a scientist to sit in an air-conditioned building and run computer models than to put on winter clothes and measure what is really happening outside in the swamps and the clouds. That's why the climate model experts end up believing their own models.
There's no doubt that parts of the world are getting warmer, but the warming is not global. The warming happens in places and times where it is cold, in the arctic more than the tropics, in the winter more than the summer, at night more than the daytime.
I'm not saying the warming doesn't cause problems, obviously it does. Obviously we should be trying to understand it. I'm saying that the problems are being grossly exaggerated. They take away money and attention from other problems that are much more urgent and important. Poverty, infectious diseases, public education and public health. Not to mention the preservation of living creatures on land and in the oceans.
He also worked out a way to reverse global warming quite cheaply [ncpa.org].
Re:impact (Score:5, Interesting)
It's actually really surprising how much airlines currently *don't* do to optimize fuel costs....
Actually, they go to great lengths to minimize fuel burn. The reason they're often not at optimum altitude or speed is due to ATC constraints. At most (not all) airports, you'll have a much earlier than optimum descent from cruise altitude, followed by being high on the downwind leg (leaving enough space for departing aircraft to get out under the arrivals), followed by a tight, slam dunk, high drag approach or a loooong downwind while you do a low level fuel annihilation run due to the amount of traffic arriving.
Oceanic routes have huge spacing requirements due to the lack of radar coverage. Because of that, it's often difficult to get a clearance to a new altititude while over the pond. It's not uncommon to cross the ocean at one altitude for the entire crossing, even though the optimum altitude will go up as the aircraft gets lighter.
So, airlines do the best they can with the constraints they face. Improving the ATC system will be a big help.
Nope (Score:2, Interesting)
We need to use smart and effective 'green' design. And no, I don't mean we should be living in squalor cabins with grass on our roofs--beautiful, effective and low cost green architecture is available...if the industry will ever be embraced!
Re:The cult of Global Warming (Score:4, Interesting)
Sadly, this has also been refuted many times [realclimate.org].
Hurry Up and Wait for Inefficiency (Score:5, Interesting)
How many times have we arrived above an airport, just to fly in circles until the terminal is ready to let us get to the gate? How long have we spent burning fuel on the runway, waiting for our turn to take off? All that extra fuel burned to go extra miles between our points.
And then the pilot tells us they'll pour on the speed to catch up to schedule, or get us ahead of schedule - so we have to wait longer for a gate to open when we arrive. That extra airspeed might improve their ontime arrivals/departures stats, but once out of the maximum efficiency range, that 4th power of wind resistance per area drag really multiplies the inefficiency out of the engine's peak efficiency RPM.
But if their logistics just mapped the arrivals/departures to the capacity of the airports, most of that waste would be unnecessary. I wouldn't be surprised to see >10% fuel efficiency gained right there, plus the extra efficiency from less refueling infrastructure.
Re:The cult of Global Warming (Score:3, Interesting)
We need to implement new emissions standards, and tell countries that want to sell us products that they must also meet our standards, or face tariffs that makes their products more expensive than the ones made in the countries that do meet the new standard.
Re:Hurry Up and Wait for Inefficiency (Score:3, Interesting)
Re:Yes (Score:3, Interesting)
Hogwash. Those magnetos have problems just like everything else. They can be very reliable, but mostly because there are two of them. There are some very delicate parts, such as the impactor which is necessary for starting the engine, that can and do fail quite rapidly. How many people would consider it normal to have to have their car's ignition system fail on them after less than 1000 starts? I don't know how many starts an aircraft manages across a few thousand hours of flight, but I suspect that it's far less than one per two hours of flight. Whereas a daily-driven car probably gets 2000 starts in a little over two years, three at the most.