Mikeclod From United States of America, joined Dec 2001, 272 posts, RR: 0
Reply 4, posted (12 years 3 weeks 4 hours ago) and read 15238 times:
A simple formula (for small to medium amounts) that is relatively accurate is 150g = 1000 lbs.
15g = 100 lbs
1500g = 10000
and so on. Start going over 20,000 to 40,000 lbs, and this starts to get pretty far off. The density can change quite a bit depending on temperature.
I've seen it as low as 6.55 and has high as 6.85.
B747skipper From , joined Dec 1969, posts, RR:
Reply 5, posted (12 years 2 weeks 6 days 23 hours ago) and read 15228 times:
For you Gentlemen who prefer metric...
Densities to remember for fuels (weight of 1 liter of xxx at 15 deg. Celsius) -
Gasoline density is .69 (690 grams per liter)
JP-4 (Jet B) is .78
Jet A is .812
Jet A-1 is .813
Engines burn a weight of a given fuel to operate... so remember this... buy your gasoline for your car at the pump when it is cold (early morning) since you buy gasoline by volume... Example, Jet A fuel when warm might have a demsity of only .80, but could be .82 or .825 when cold...
L-188 From United States of America, joined Jul 1999, 29990 posts, RR: 58
Reply 7, posted (12 years 2 weeks 6 days 19 hours ago) and read 15192 times:
Keep in mind that Gallons are a measure of volume while pounds are a measure of weight. So depending on the temperature of the fuel a gallon jug will weight different amounts.
Not a big deal with most light aircraft but one of the daily checks on the fuel farm was to measure the height of the fuel in the storage tanks. The difference in the height of fuel in a tank between morning and afternoon temps could be measured in feet on a tank that was not being used.
OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.