help.... info onfuel usage required

help.... info onfuel usage required

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anonymous-user

Original Poster:

55 months

Tuesday 28th March 2006
quotequote all
I once read a quotation that stated something like "A 747 flight to Australia uses more fuel than that is used in a while year by UK motorsport competitors"

if anyone can find me this quote, or even details of annual motorsport fuel usage in the UK, I would be most grateful.

the 747 info is fairly easy to find. This is from gocalipso.com "a 747-400 that flies 3,500 statute miles (5,630 km) and carries 126,000 pounds (56,700 kg) of fuel will consume an average of 6.5 gallons (15 L) per mile" i didnt think 6.5gpm was too bad to be honest!....

scuffham

20,887 posts

275 months

Tuesday 28th March 2006
quotequote all
not sure where you go the 747 figures from?

747er holds 241,140L of fuel (216,840L for the non-ER version)

this gives it a range of 7,670 nautical miles or 14,205 km 7,260 nautical miles or 13,450 km for the non-ER)

Aus is too far for a 747 on one go, so normally they stop somewhere like singapore.

so you have something like 22 hours flight time, and at some 13-14,000L per hour that's something like 285-310,000L of fuel.

Apparently the Britcar 24H race used some 170,000L over the weekend, so I think that quote is somewhat floored...

anonymous-user

Original Poster:

55 months

Wednesday 29th March 2006
quotequote all
cant trust the internet these days!....

i think the quote was a few years ago and so would not have included the longer distance events. i worked out a rudimentary figure as follows.

if we are to assume there are 100 championships in the UK, each with 20 cars, that gives us 2000 racing cars. each championship is 10 rounds and each round is 15 laps. therego, if each car completes every lap of the championship, a total of 300,000 laps are completed. if each lap is on average 2 miles long, the racing cars have covered a cumulative distance of 600,000 miles.

now it gets really silly.... if we presume that the average mpg for these cars is 10 mpg, the total number of gallons used per year is 6,000.

ok, you can ride horses through the calculation and all the presumptions. on the whole maybe it balances it all out though, i know there aren't 100 championships but some do have grids of over 20. 10mpg is not particularly accurate but i am sure some cars do more (prod saloons?) and some do less (GT etc)... anyone care to comment or improve this?

scuffham

20,887 posts

275 months

Wednesday 29th March 2006
quotequote all
too many assumptions....

even a 10 lap race will have some qualifing time - say 15 mintues, that would in most cases be about the same as the race time, so double the fuel used, then you have engine warm up time, etc etc. then any test days etc.

Also, you can't rule out endurance races, they have always been there...

looking though what my car burned though last year (and mine is probably the most economical on the grid) excluding the weekend of the 24H, I went though some 1,400L plus 850L over the weekend of the 24H so some 2,250L of fuel for the year.

if you work on most cars using double this (and in reality they probably use more like 3x this) for say an average of 20 cars on the Britcar grid last year, that's 90,000L just for *one* race serise, then add Britsports and production S1 would get you well on the way to the Jumbo's figure...

anonymous-user

Original Poster:

55 months

Wednesday 29th March 2006
quotequote all
excellent info, many thanks....how about a return flight then

scuffham

20,887 posts

275 months

Wednesday 29th March 2006
quotequote all
pablo said:
excellent info, many thanks....how about a return flight then


that would do it!

leaving all this asside, the point is well made though, even if it's 2 return flights to Aus, it's still bugger all compared with the fuel bills for aviation as a whole.

anonymous-user

Original Poster:

55 months

Wednesday 29th March 2006
quotequote all
good point, regardless of whether it is two or three return flights, it is still a lot of fuel in comparision to a season of motorsport. especially when you consider just how many long haul flights there are each day from Heathrow alone. oh my god, i am turning lenrtilist, quick i need to go for a drive and buy something in a styrofoam cup.....

the reason for the question is that bristol motor club have been invited by a phd student to join a focus group on climate control. most people are of the impression that it will be an attack on hte car but i wanted some ammo to fire back at them just in case that was there angle. i already have a good deal of info on the shell eco-marathon and the Nasamax LMES car.

onomatopoeia

3,471 posts

218 months

Wednesday 29th March 2006
quotequote all
pablo said:
I once read a quotation that stated something like "A 747 flight to Australia uses more fuel than that is used in a while year by UK motorsport competitors"


I read that too, in an email I got last night!

I think the 10mpg figure is optomistic for competition cars. My little car does under 6mpg around Colerne.

lanan

814 posts

229 months

Wednesday 29th March 2006
quotequote all
The 7 litre Corvette I run in LMES does 5.5 mpg and will use around 120 gals in a six hour race.

Jon C

3,214 posts

248 months

Wednesday 29th March 2006
quotequote all
Top Fuel Dragsters (not many of them, I know) will burn upwards of 14 gallons of fuel on each pass.