What does gasoline weigh ?
 

Just finished a supercraft laser 2000 with a BME 50. A guy at the field had a digital scale. I weighed in at 16.6 lbs with a full tank. (550 cc tank which is 18.5 ozs (I think). )

Anybody know what 550 cc's of gasoline weighs ?

Thanks,

DrH

less than 18 oz
 

A fluid ounce of gasoline weighs slightly less than one ounce. So your 18.5 oz tank probably had about 17 ounces of weight.

Water
 

Less than water..

What does gasoline weigh ?
 

Rule of thumb an ounce to an ounce.
Gasoline weighs about 7lbs per gallon @60 deg. F

What does gasoline weigh ?
 

As a full scale flyer, I can tell you that the FAA instructions have you calculate weight and balance based on 6 lbs per gallon of fuel. How this converts to your question, you will have to compute w/a conversion chart

What does gasoline weigh ?
 

Right. The FAA uses 6 lbs/gal for 100LL. Don't know if auto gas is heavier. Mooney drivers like to use 5.8 lbs/gal for 100LL. :)

-B

Rule of thumb ...
 

water: 8 pounds per gallon
Gas: 6 pounds per gallon

there are some variable factors that come into play that effect the weight:
Specific gravity (density of the fluid)
Barometric pressure
air temperture
altitude

Volume:
1 gal(US) = 128 oz = 3.875 L = 387.541cc
1 oz = 2.957 cc

weight:
water:
1 oz = 1 oz
1 cc = 0.3382 oz

gas:
1 oz = 0.75 oz
1 cc = 0.2536 oz

550 cc (gas) = 139.48 oz = 8.7175 lbs = 3.9542 kg = 395.42 grams

;)

What does gasoline weigh ?
 

Yes, you guys are right 6lbs/gal, don't know where I got seven

by the way,
Water is 8.333 lbs/gal @60deg. F

Re: Rule of thumb ...
 

What does gasoline weigh ?
 

Here are some facts on water.
Weight: 62.416 pounds per cubic foot at 32°F
Weight: 61.998 pounds per cubic foot at 100°F
Weight: 8.33 pounds/gallon, 0.036 pounds/cubic inch
Density: 1 gram per cubic centimeter (cc) at 39.2°F, 0.95865 gram per cc at 212°F

Facts about gasoline.
Gasoline 87 Octane Weight 6.2000 lbs
Gasoline 89 Octane Weight 6.2100 lbs
Gasoline 92 Octane Weight 6.4130 lbs

Re: Re: Rule of thumb ...
 

excuse me? there is 29.57 milliliters to the ounce
2.957 centiliters to the ounce

3.875 / 100 = 387.5 in my math book ...

1000 milliliters = 100 centiliters = 10 deciliters = 1 liter

also for converting cubic inches to cubic centimeters

1 cui = 16.38 cc
1 Liter = 61.05 cui

do the math ...

and if he has a 550cc gas tank he has an 185.99 ounce tank.

check your figures again Chuck ... ;)

but I do agree this seem like maybe someone got the size of the tank wrong ... the original question was ... I used the approximation method to determine an answer due to the fact to give the exact weight calculation ... more data would have to been provided.


NEVERMIND ... I was having a SENIOR MOMENT .... got my C's mixed up ...

I hate when I do that
:stupid:

1 cubic centiliter = 10x10x10 milliliters = 1000 milliliters

A FATAL ID ten T (ID10T) error on my part ...

Now, I know why I live in the USofA ...

OK You're right...
 

The guy has a 18 fluid ounce tank and it holds 8.7lbs of gas..my math is obviously off.

Yeah, but..
 

a cc (cubic centimeter) is a milliliter, not a centiliter..there are 1000 cubic centimeters in a liter, and 1000 milliliters in a liter...

A centiliter isn't the same as a cc....

There are 29.57 cc in an oz...(fluid)

550cc/29.57 = 18.6 oz (fluid)

If gas weighs ~ 6lbs/128 oz, then I say his fuel load weighs ~6(16)/128(18.6)=13.95 oz weight.

For reference, the only metric tank I own is a 220 cc..it is roughly an 8oz (fluid) capacity...

Not picking on you..I too am glad I live in the US and don't have to make these devilish conversions often..LOL

revision on FUZZY math 101
 

here is a re-calculated computation ...

1 ounce = 29.6 cc or ml

using 8 lb/gal. for water calulation and FAA 6 lb/gal. for gas:

1 (US fluid) oz = 1 oz (avoir.)
1 (avoir.) lb = 454 grams
1 oz = 28.375 grams

1 oz of water weighs 1 oz @ 8 lb/gal.
1 cc of water weighs 0.034 oz @ 8 lb/gal.

1 oz of gas weighs 0.750 oz @ 6 lb/gal.
1 cc of gas weighs 0.025 oz @ 6 lb/gal.

550cc = 18.58 fluid oz.
550cc of gas weighs 13.935 oz or 0.87 lbs ...

figures may change slightly due to rounding effect and true weigh of fluids ... but these are a close approximation ...

Now, I am going back to hide in my cave and play with my calulator ...

GEEZ ... you would think this was rocket science ... :(

must be so smart I am getting stupid ... I wonder if Einstien ever had a senior moment?

:rolleyes:

now lets me see ... was that C = sqrt(E/M)?
which in its own right is kind of stupid ... because the speed of light remains constant ... or I think it does ... since the is no real way to measure it that I know of?

I suppose its all relative ... :confused:

What does gasoline weigh ?
 

http://www.convert-me.com/en/convert/volume

:D


http://www-sci.lib.uci.edu/HSG/RefCalculators.html

http://www.convert-me.com/en/

http://www.digitaldutch.com/unitconverter/

Thanks
 

Thank you............................................... ..

Re: Re: Rule of thumb ...
 

??

What does gasoline weigh ?
 

Hans Meij :

Very Good.......... :p

Hans and Jemo...
 

Not mind boggling to me, I think I got it right, and didn't need to use an online metric converter :rolleyes:

What does gasoline weigh ?
 

Hans and jemo didn't say it was mind boggling.

Whatever...
 

I guess sarcasm is not known to Hans and Jemo.. :rolleyes:

I guess that's why jemo had the links to all those online metric converters so handy :p

And once again I state (now read this, this time):

Not mind boggling to me, I think I got it right, and didn't need to use an online metric converter :stupid:

Re: Whatever...
 

Thats why I don't feel offended

What does gasoline weigh ?
 

Re: Rule of thumb ... (post # 9)


quote:
--------------------------------------------------------------------------------
Originally posted by D_Dawg
water: 8 pounds per gallon
Gas: 6 pounds per gallon


Volume:
1 gal(US) = 128 oz = 3.875 L = 387.541cc
1 oz = 2.957 cc
You are off by a decimal place..there are 3875 cc's in a gallon (1000 cc's to a liter) and 29.57 cc's/oz
550 cc (gas) = 139.48 oz = 8.7175 lbs = 3.9542 kg = 395.42 grams

and 550cc is 18.6 fluid oz...he isn't toting 8lbs of fuel (weight). This metric stuff is sometimes mind boggling~
--------------------------------------------------------------------------------



__________________
Breaking the Speed of Sound, Straight Down!




:D :D :D

Well, jemo.
 

Ah..a typo..yes jemo...I transposed 3875 for 3785..this doesn't mean I am mind boggled by the metric system, just that I can't type...

So jemo, in your expert knowledge and grasp of the subject, what would you say a 550 cc tank holds in ounces (volume) and how much would it weigh, using the rough figure of 6lbs/gallon??

And Hans..sorry, wasn't trying to offend you..I grouped your remarks in with those of jemo. My mistake and I apologize.

What does gasoline weigh ?
 

Number one:
No one seems offended except you. I thought we were all joking.

I only copied YOUR post.

If your own post offends you, then I don't know what to say to you.

I think everyone knew it was toungue in cheek stuff. That's what I meant by. "Very Good" to Hans. considering where He lives.

Nuff said......