How much would it cost in fuel to fly a Boeing 737 800 from Dublin to Stansted?.

Run_to_da_hills

Im trying to settle an argument with someone on how much it would cost in average in avaition fuel to fly a Boeing 737 800 series from Dublin to Stansted. (Weather not too bad!)

ronnie3585

Thirty pieces of silver.

Run_to_da_hills

ronnie3585 wrote: »

Thirty pieces of silver.

Maybe a months premium for yourself on a MK5 Golf GTI if your lucky.

FlutterinBantam

The fuel consumption would be about 2100kgs.

Now if someone can tell you how much the fuel costs you are in business, but that figure should help.

ImDave

Price for Jet A1 in EIDW on 2007-06-14 was €1.451 per litre. Source: http://www.thehangar.co.uk/fuel/fuel.shtml. I'm not sure how accurate this source is.

I am very much so open to correction here,but if I remember my conversions correctly, if fuel burn of 2100kg with the fuel having an S.G. of lets say 0.78, its 2100kg *0.78 = 1638 litres. So 1638 * 1.451 = €2376.738.

Run_to_da_hills

EI-DAV wrote: »

Price for Jet A1 in EIDW on 2007-06-14 was €1.451 per litre. Source: http://www.thehangar.co.uk/fuel/fuel.shtml. I'm not sure how accurate this source is.

I am very much so open to correction here,but if I remember my conversions correctly, if fuel burn of 2100kg with the fuel having an S.G. of lets say 0.78, its 2100kg *0.78 = 1638 litres. So 1638 * 1.451 = €2376.738.

Lucky I was not filling it, It would of had to divert to Liverpool! I was thinking of around e1600 :eek:

Tenger

Run_to_da_hills wrote: »

Lucky I was not filling it, It would of had to divert to Liverpool! I was thinking of around e1600 :eek:

While not exactly what you asked for. This a may help a bit.
As a general rule for economics and emission guidelines an EI A320 fully laden uses 16 litres per pax DUB-LHR. Thats 174 pax.

Generally fuel load DUB-LHR is approx 6500-7000 kilos, depending on weather and baggage/cargo.

Run_to_da_hills

Ryanair must be running their planes on water if they can afford to give so many seats away. .

Bob the Builder

Run_to_da_hills wrote: »

Ryanair must be running their planes on water if they can afford to give so many seats away. .

seats cost 1c, but all the extras soon pile up... false advertising really, but it's still legal.

OP, cant give you any figures, sorry

FlutterinBantam

Its called yield management actually

*Kol*

EI-DAV wrote: »

Price for Jet A1 in EIDW on 2007-06-14 was €1.451 per litre. Source: http://www.thehangar.co.uk/fuel/fuel.shtml. I'm not sure how accurate this source is.

I am very much so open to correction here,but if I remember my conversions correctly, if fuel burn of 2100kg with the fuel having an S.G. of lets say 0.78, its 2100kg *0.78 = 1638 litres. So 1638 * 1.451 = €2376.738.

That's a price for AVGAS I would say, not JET A1. Jet A1 is around 70 cent per litre. That's around €1150.

kraggy

EI-DAV wrote: »

Price for Jet A1 in EIDW on 2007-06-14 was €1.451 per litre. Source: http://www.thehangar.co.uk/fuel/fuel.shtml. I'm not sure how accurate this source is.

I am very much so open to correction here,but if I remember my conversions correctly, if fuel burn of 2100kg with the fuel having an S.G. of lets say 0.78, its 2100kg *0.78 = 1638 litres. So 1638 * 1.451 = €2376.738.

What's S.G.?

kraggy

Bramble wrote: »

While not exactly what you asked for. This a may help a bit.
As a general rule for economics and emission guidelines an EI A320 fully laden uses 16 litres per pax DUB-LHR. Thats 174 pax.

Generally fuel load DUB-LHR is approx 6500-7000 kilos, depending on weather and baggage/cargo.

But 2100 kgs for a 738?

I'm confused

ImDave

*Kol* wrote: »

That's a price for AVGAS I would say, not JET A1. Jet A1 is around 70 cent per litre. That's around €1150.

My mistake, that price was indeed for AVGAS.

S.G. or Specific Gravity is the ratio of the density of a liquid compared to that of water. Water is 1.0, so 1 kg = 1litre. The S.G. of fuel varies, but is generally between 0.75 and 0.80 for AVGAS anyway, not sure about JET A1.

*Kol*

EI-DAV wrote: »

My mistake, that price was indeed for AVGAS.

S.G. or Specific Gravity is the a ratio of the density of a liquid to compared to water. Water is 1.0, so 1 kg = 1litre. The S.G. of fuel varies, but is generally between 0.75 and 0.80 for AVGAS anyway, not sure about JET A1.

The same for Jet A1. It won't vary much here from .80 kg/l.

*Kol*

kraggy wrote: »

But 2100 kgs for a 738?

I'm confused

If you work out the A320 fuel burn at 16 litres per pax it's 2784 litres. That's 2227 kgs. I would say that the A320 and B737 fuel consumption for that route should be similar alright.

kraggy

*Kol* wrote: »

If you work out the A320 fuel burn at 16 litres per pax it's 2784 litres. That's 2227 kgs. I would say that the A320 and B737 fuel consumption for that route should be similar alright.

Ah that sounds better. Thought they'd be similar. Got phased by the 6000kg figure.

And what is the reasoning behind multiplying the Fuel load weight by the SG?

*Kol*

kraggy wrote: »

Ah that sounds better. Thought they'd be similar. Got phased by the 6000kg figure.

And what is the reasoning behind multiplying the Fuel load weight by the SG?

The fuel is delivered from the truck in litres. The quantity indication in the aircraft is in KGs. After refuelling you have to verify that what was delivered is equal to what is indicated in the cockpit.

When you multiply the litres figure by the SG you get the weight. If the cockpit indication is in pounds (US carriers) the SG is 6.676 lbs/US gallon.

kraggy

Gotcha.

Thanks for that.

K

Deacon Blues

Does temperature come into the calculation ?

A litre, or kilo is constant, but if the fuel expands or contracts due to high or low temperature, is the amount significant ??

For example, you fill a litre container with fuel in Bombay at an ambient temperature of 40 deg C, and then fly to Vladivostok where the ambient temp is -20 deg C (figures and places just for example). The fuel contracts, so the litre container does not contain a litre any more. However, the fuel will still weigh the same. Is that why the cockpit measures fuel in kilos or pounds ?? But then, fuel flow is in litres ... so ... ahhh forget it. Can't believe I'm thinking about this on a Friday afternoon.

*Kol*

Deacon Blues wrote: »

Does temperature come into the calculation ?

A litre, or kilo is constant, but if the fuel expands or contracts due to high or low temperature, is the amount significant ??

For example, you fill a litre container with fuel in Bombay at an ambient temperature of 40 deg C, and then fly to Vladivostok where the ambient temp is -20 deg C (figures and places just for example). The fuel contracts, so the litre container does not contain a litre any more. However, the fuel will still weigh the same. Is that why the cockpit measures fuel in kilos or pounds ?? But then, fuel flow is in litres ... so ... ahhh forget it. Can't believe I'm thinking about this on a Friday afternoon.

That's where the specific gravity comes in. You will alway be able to convert accurately from litres to kilos no matter what the temperature is. The SG will change with the ambient temperature (not really much here tho).

The fuel flow is measured in KG per hour.

FlutterinBantam

Temperature and pressure can influence the amount of fuel which
can be pumped on.

Fuel has to be lifted therefore measuring it in kgs is more practicable.

Wing tank fuel has a fairly minimal effect to the balance of the a.c but centre tank fuel plays a big part and is usually burned off first.

This would not apply usually to DUB-UK flights.

Full wings would be in the region of 8.5 tonnes for 734 or A320 type I would say.

merkuree

I do not have specifics for Irish airlines, but I believe most (smart) airlines negotiate or contract for a hedged fuel costs.....so the cost will also be influenced by the cost that a particular carrier negotiated.

it is fairly amazing the variance in costs negotiated, seeing as it is such a critical factor in airline operations and has such an impact on your bottom line.

http://www.ft.com/cms/s/0/0826f784-ca20-11dc-b5dc-000077b07658.html

Quote:


Southwest closed its 35th-straight profitable year with a quarter that exceeded Wall Street’s expectations, thanks to hedging contracts that capped most of its energy needs at prices well below market rates.
While Southwest paid an average of $1.87 per gallon for jet fuel, Delta shelled out $2.61.