Does altitude affect diesel engines?

If you go high enough a carbureted engine stops working, that’s at about 4000 meters or 12,000 feet. Any higher than that you’ll need fuel injection. Try climbing a hill at that altitude, and most of us will be puffing and panting after 50 meters or so. So too diesel engines lose power with altitude.

How much horsepower do you lose per 1000 feet?

Generally speaking, an engine loses three percent of its rated power for every 1,000 feet of altitude gained. This means you could lose as much as 20\% of your vehicle’s horsepower if you drive it from sea level to Big Bear Lake (with its 6,750 elevation).

Are bigger planes more fuel-efficient?

One might assume that the larger the plane, the more fuel-efficient it is per passenger due to economies of scale. But in the case of flights over the Pacific, conventional wisdom turns out to be wrong. Size matters, but not in the way you think. Airlines that operate very large aircraft burn more fuel and release more carbon than their peers.

Why do airplanes fly above 35000 feet?

Along with this, most thunderstorms, severe weather incidents and birds can be avoided while above 35,000 feet. Also, the air is thin enough to reduce the aircraft’s drag, increasing its fuel efficiency. There is also enough oxygen in the air here to combust with the jet fuel, generating enough power for the aircraft.

Why do airlines use so much fuel on long flights?

Airlines that operate very large aircraft burn more fuel and release more carbon than their peers. There are two reasons for this, one related to the aircraft itself and the other to how they are used on transpacific flights.

What is the highest altitude of a commercial airliner?

— Churachandpur Manipur Answer: The highest commercial airliner altitude was 60,000 feet by Concorde. The highest military air-breathing engine airplane was the SR-71 — about 90,000 feet. The highest airliner flying today reaches 45,000 feet.