This may sound like a silly question, but which one gets better miles per gallon (or kilometers per liter for those outside the U.S.)? A Honda Insight or an engine of a Boeing 747-400?

I know that there's no way a 747 engine compares to a Honda Insight engine, but I would like to know the comparison anyway.

I know that there's no way a 747 engine compares to a Honda Insight engine, but I would like to know the comparison anyway.

A better question would be, which gets better miles per gallon **per person**?

You could do a proportional problem and figure it out. Like LAX-JFK

Go big or go home

- hawaiian717
**Posts:**3149**Joined:**

To give you some idea, on a flight earlier this month from DTW to SFO on a 757, our pilot told us how much fuel we would be burning. I don't remember how many pounds he said, but I do remember that he also said it would be enough to power a minivan or SUV for 8 years.

So my guess is that an Insight would get better mileage than a 747.

But compare how long it would take to get from DTW to SFO in a 757 or 747 versus an Insight, and I think it's worth it.

David / HNL

So my guess is that an Insight would get better mileage than a 747.

But compare how long it would take to get from DTW to SFO in a 757 or 747 versus an Insight, and I think it's worth it.

David / HNL

airworthy's question is quite a good one and the answer is in the link below..

when you compare miles per gallon per person the 747 wins

here's the link

http://www.howstuffworks.com/question192.htm

Yours,

IHadAPheo

when you compare miles per gallon per person the 747 wins

here's the link

http://www.howstuffworks.com/question192.htm

Yours,

IHadAPheo

Pray hard but pray with care For the tears that you are crying now Are just your answered prayers

- desertjets
**Posts:**7617**Joined:**

But what if you drive the Insight to the airport????

Stop drop and roll will not save you in hell. --- seen on a church marque in rural Virginia

I guess taking the Insight to the airport would be a bit easier than taking the 747 to the mall

Yours,

IHadAPheo

Yours,

IHadAPheo

Pray hard but pray with care For the tears that you are crying now Are just your answered prayers

This is assuming that the Insight gets a combined 65 mpg and carries only 1 person a majority of the time and a 747-400 carries 400 pax and travels 1 mile on 5 gallons of fuel.

To travel the distance the Insight travels on 1 gallon of gas, a 747 needs 325 gallons of fuel (65 x 5 gallons per mile). Divide that by 400 pax, you get 0.8125 gallons of fuel to transport 1 pax 65 miles. So using these assumptions, the 747 wins the gallons per person comparison.

But since you asked mpg, the Insight wins with 61 city/68 highway. The 747 gets 0.2 mpg

To travel the distance the Insight travels on 1 gallon of gas, a 747 needs 325 gallons of fuel (65 x 5 gallons per mile). Divide that by 400 pax, you get 0.8125 gallons of fuel to transport 1 pax 65 miles. So using these assumptions, the 747 wins the gallons per person comparison.

But since you asked mpg, the Insight wins with 61 city/68 highway. The 747 gets 0.2 mpg

The 747 only wins (on miles per gallon per person) because we assume a low load factor for the Honda

Cunning linguist

The "Green" party is very powerful in Germany and it raised that question a few years ago. Its most radical members wanted to imposed a "1 vacation flight every 5 years" policy, see what I mean?

LH answered those concerns with an add saying that the A340 was burning less than 4 l/100km/pax. In comparison, the VW Golf diesel sold in North America burns 4.4 l/100km.

But as correctly pointed out earlier, as soon as you put two persons in the car, the VW burns less per pax.

LH answered those concerns with an add saying that the A340 was burning less than 4 l/100km/pax. In comparison, the VW Golf diesel sold in North America burns 4.4 l/100km.

But as correctly pointed out earlier, as soon as you put two persons in the car, the VW burns less per pax.

Never let the facts get in the way of a good theory.

Two clarifications:

In reality, airline load factors are not 100%. So, a typical 747-400 flight probably has about 80% of its seats filled. Therefore, its miles per person is most likely about the same as a Honda Insight with one occupant (adjusting Ha763's math slightly: a 747-400 typically uses 1.015625 gallons to transport one passenger 65 miles).

On the flip side, a Honda Insight can seat 4 comfortably (or is it 5?). So it requires .25 gallons of fuel to tranport 4 seats 65 miles.

Translation:

The 747-400 uses more fuel per person at typical load factors than the Honda Insight does with any load factor. The only time a 747-400 is more efficient, assuming the numbers we are working with here are accurate, is when it is close to fully loaded with passengers.

Of course, the more interesting statistic is the fuel cost per person / seat over the same distance. This is where the 747 clearly wins, even at the higher jet fuel prices today.

In reality, airline load factors are not 100%. So, a typical 747-400 flight probably has about 80% of its seats filled. Therefore, its miles per person is most likely about the same as a Honda Insight with one occupant (adjusting Ha763's math slightly: a 747-400 typically uses 1.015625 gallons to transport one passenger 65 miles).

On the flip side, a Honda Insight can seat 4 comfortably (or is it 5?). So it requires .25 gallons of fuel to tranport 4 seats 65 miles.

Translation:

The 747-400 uses more fuel per person at typical load factors than the Honda Insight does with any load factor. The only time a 747-400 is more efficient, assuming the numbers we are working with here are accurate, is when it is close to fully loaded with passengers.

Of course, the more interesting statistic is the fuel cost per person / seat over the same distance. This is where the 747 clearly wins, even at the higher jet fuel prices today.

SkyTeam: The alliance for third rate airlines finally getting their act together!

- AvObserver
**Posts:**2501**Joined:**

"On the flip side, a Honda Insight can seat 4 comfortably (or is it 5?). So it requires .25 gallons of fuel to tranport 4 seats 65 miles."

Ybacpa, the Honda Insight is a 2-seater, you may be thinking of the 4-5 seat Civic Hybrid. That doesn't change the end result but it narrows the Insight's superiority. In any case, the Insight would be much less pleasant on a transoceanic trip than the 747, to say the least (blub, blub).

Ybacpa, the Honda Insight is a 2-seater, you may be thinking of the 4-5 seat Civic Hybrid. That doesn't change the end result but it narrows the Insight's superiority. In any case, the Insight would be much less pleasant on a transoceanic trip than the 747, to say the least (blub, blub).

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