How Lasers Will Help Us Make Planes Quieter and More Fuel-EfficientJordan Golson
it was built with large, additional internal fuel tanks in the fuselage (the main body) and in the wings. It can also carry three external tanks, as well as a pair of form-fitting, exterior conformal
But that is mainly because it’s much less common than other forms of travel. Even though planes carry more people than cars, a plane trip is usually far worse for the climate. Getting a heavy plane up into the sky and keeping it there burns lots of fuel. And today we can’t switch...
but A320s are also equipped with power transfer units. They sound a bit different than hydraulic pumps: like there is a dog barking continuously. We put on hydraulic pumps after we shut down one of the engines during taxiing. We do this to save fuel as it is more environmentally f...
1. Why is the climate impact of a train ride greater than that of a bus ride? A. Trains require more fuel to start. B. Trains are larger and heavier. C. Trains carry more people. D. Trains move much faster. 2. If we must drive, what should we do according to the passage? A....
Fuel costs not only take a huge chunk out of an airline's revenue, they are notoriously volatile. From month to month, airlines never know exactly how much fuel is going to cost. Domestic airlines in the U.S. spend a combined $2 to $5 billion on jet fuel every month [source:Air Tr...
‘Volcanoes have affected our operations pretty much every day over the past year, Bali and Indonesia most recently.’ That has meant adding fuel for anything between an extra few minutes to an hour of flying, and rerouting flights around ash clouds on hundreds of flights over the past few ...
For satellite Wi-Fi systems, an antenna is placed within a dome-shaped container on top of the airplane. Over time these antennas have been designed to be more aerodynamic to produce less drag and therefore use less fuel. Older antennas were required to face the direction of the signal and...
Applying carbon emissions as a fuel-cost premium could lead to an accelerated fleet rollover and faster adaption of future aircraft technology, including some electrification. Alternative propulsion (such as via electricity and hydrogen) could one day replace conventional tu...
Propulsion would then be provided by the air-breathing rocket vehicle, which will inhale oxygen for about half of the flight to burn fuel. The advantage of this is it won't have to store as much oxygen on board the spacecraft as past spacecraft have, thus reducing launch costs. Once ...