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8' Chloroprene 8' 16 lbs. 15.5 lb. (7.03kg) 267 cu. ft. <1 18 Days - ... Gas capacity and balloons per helium tank figures are estimates. Actual yield may vary 10% or more. Lift ability figures are calculated at standard temperature and pressure at sea level in an …
Oct 30, 2008· At sea level, air weighs about 4 lb/cubic meter, and helium weighs about 1/10th as much. So a cubic meter of helium can lift about 3.9 lb. Helium weather balloons are designed to expand as the atmospheric pressure decreases. At half of sea level pressure what started as 1 cubic meter becomes 2 cubic meters and displaces the same mass of air as ...
HELIUM has a lift of .84 ounces per cubic foot at sea level. To determine the volume of a balloon in cubic feet, multiply the cube of the radius in inches by 1.333, multiply the result by 3.1416, and then divide by 1728. diameter/2= Radius, radius *12 for radius in inches=ri,
Jun 28, 2018· If you're performing these calculations by hand, you can surely use the lifting force of one gram per liter; however, our helium balloons calculator uses a more precise value of 1.0715 g/L: V = 75000 / 1.0715 = 69995 liters. Finally, divide the total volume of helium needed by the volume of one balloon to find out how many balloons lift a person:
Cubic Feet Helium Required = Total Lift Required (in grams) * 0.035; But I wanted to hear if anybody else thinks that there is another good/better method. Thanks! RandomAerospace 16:41:23 UTC #2. Hi thats a form of the general formula: total_lift_required = weight_of_payload + weight_of_balloon + a_bit or
A cubic foot of air weighs about 0.08 lb. Thus a cubic foot balloon of helium weighing 0.01 lb displaces a cubic foot of air weighing 0.08 lb. Thus the balloon would have the lifting capability of the difference between the weights or 0.07 lbs. To lift a person, you would need thousands of cubic feet of helium.
The difference in the up and down force is 0.069 pounds. Therefore each cubic foot of helium could lift 0.069 pounds. In order to lift 100 pounds (which would include the weight of your load, the balloon, and the helium) you would need 1449 cubic feet of helium. This would require a …
About Helium; Helium weighs 0. gram per cubic centimeter or 0.1785 kilogram per cubic meter, i.e. density of helium is equal to 0.1785 kg/m³; at 0°C (32°F or 273.15K) at standard atmospheric pressure.In Imperial or US customary measurement system, the density is equal to 0.01114 pound per cubic foot [lb/ft³], or 0. ounce per cubic inch [oz/inch³] .
4/3 x pi x 150 x 150 x 150 = 14,137,000 cubic centimeters = 14,137 liters. It would only take four of those to give you the same lift. One balloon that is 30 meters (about 100 feet) in diameter displaces 14,137,000 liters, so it can lift 14,000 kilograms (about 31,000 pounds) -- this is roughly the size of a large blimp.
Approximately 15 cubic feet of Helium. It takes about 300 balloons to lift 200 pound manballoon filled with exactly 1 sq ft of helium yields about 28.2g (upward thrust)453.6 grams/Lb453.6(1Lb) /28 ...
Jul 26, 2002· Something like 15886.5 cubic feet of helium is required to lift 1000 pounds. 2. A cubic foot of helium will lift about 28.2 grams. Hence the formula to calculate the answer to 1 is: (n cubic feet)(28.2 grams/cubic feet)(1/448 pounds/gram) = n * .06294 pounds So plug in however many cubic feet you have, times .06294 and you should get a close ...
How many cubic feet of helium is required to lift, say, 300 or 500 pounds? Asked by: Kevin Petersen Answer So you want to build a blimp! OK the first principle we need to invoke is that of buoyancy. Any object in a fluid feels an upward force equal to the weight of the fluid displaced by the object. For example, if a boat's hull takes the place ...
Dry air at room temperature has a density of 1.2 kg/m3. Hydrogen density is 0.083 kg/m3. This results in a lifting force of 1.2 - 0.083 = 1.12 kg/m3-H2. Your 200 lb person weighs 91 kg. Therefore, ignoring the mass of the balloon, you will need 91...
If you are measuring your balloon in feet, that gives you the volume of the balloon in cubic feet. One cubic foot of helium will lift about 28.2 grams, so multiply the volume of the balloon by 28.2.
The actual lifting ability of each gas varies with temperature, pressure, and humidity, and to take account of varying atmospheric conditions and gas impurities airship designers often conservatively estimated helium's lift at 60 lbs per 1,000 cubic feet and hydrogen's lift at 68 lbs per 1,000 cubic feet. Relative lifting ability of ...
Jan 16, 2010· Ultralights weigh less than 254 pounds, which is 116 kilograms, which requires 116 cubic meters of H2 to lift, which is 4100 cubic feet at 17 cents each, equals $700. 1/4 the cost of non-renewable helium. Do-able!
Jul 19, 2017· Know exactly how many balloons can be filled with different helium cylinders each and every time with this quick and easy guide from Zephyr! Whether you're an expert retailer, a professional buyer, or a parent planning for a party, the sheer number of options for helium cylinders and balloons can quickly get confusing if you don't have a calculator and pen next to you.
Nov 03, 2020· Each cubic foot of helium can lift 0.069 pounds. In order to lift 100 pounds (which would include the weight of your load, the balloon, and the helium) you would need 1449 cubic feet of helium. 1 0. Still have questions? Get answers by asking now. Ask question + 100. Join Yahoo Answers and get 100 points today.
About Helium; 1 cubic centimeter of Helium weighs 0.00018 gram [g] 1 cubic inch of Helium weighs 0.0001 ounce [oz] Helium weighs 0. gram per cubic centimeter or 0.1785 kilogram per cubic meter, i.e. density of helium is equal to 0.1785 kg/m³; at 0°C (32°F or 273.15K) at standard atmospheric pressure.In Imperial or US customary measurement system, the density is equal to 0.01114 pound ...
Liquid Helium Physical Properties ... POUNDS Lb KILOGRAMS Kg CUBIC FEET SCF CUBIC METERS Nm3 GALLONS Gal LITERS L 1 Pound 1 .0 0 .4536 96 .71 2 .542 0 .9593 3 .631 1 Kilogram 2 .205 1 .0 213 .2 5 .603 2 .115 8 .006 1 SCF Gas 0 .01034 0 .004690 1 .0 0 .02628 0 .009919 0 .03754
Below are approximations, and actual results may vary based on many conditions (indoor/outdoor use, amount of direct sunlight, balloon type, helium or air mixture in your tank, etc). Typically, you can rent a standard 242 cubic foot Helium Tank from a local gas supplier, welding company or tank rental firm.
One source says 1 liter of helium can lift 1 gram. Translating to the other measurement system, you get 1 gram = .0022 pounds 200 pounds = about 91,000 grams 1 liter = .035314 cubic feet 91,000 times .035314 cubic feet = about 3214 cubic feet.
Jun 07, 2008· Please, give me a SIMPLE answer to a simple question: How many cubic feet of helium, on the average, does it take to lift one pound. And please, no metrics, and please answer this with one short sentence. I thank you.
Oct 17, 2009· "A fully inflated elipsoid of these dimensions contains just over 1,000 cubic feet (28 m3) of helium[28], sufficient to lift 65 pounds (29 kg) at sea level, and around 48 pounds (22 kg) at 8,000 feet (2,400 m) (including the baloon skin and carboard structure etc)['"
A lifting gas or lighter than air gas is a gas that has a lower density than normal atmospheric gases and rises above them as a result. It is required for aerostats to create buoyancy, particularly in lighter-than-air aircraft, which include free balloons, moored balloons, and airships.Only certain lighter than air gases are suitable as lifting gases. Dry air has a density of about 1.29 g/L ...
Jul 11, 2016· 1) If 1 Liter of helium can lift 1 gram, then 14 Liters of helium will lift 14 grams. 2) If a person weighs 50 Kg = 110 pounds, then 3500 balloons should lift them off of the ground? The last statement is shown with no calculations -- which is bothersome if you are the author of this blog site -- …
Aug 20, 2008· densities: (and this will vary with temperature) Helium gas 0.18 kg/m³. Air 1.28 kg/m³. difference is 1.1 kg/m³. 300 lbs is 136 kg. so lift volume is 136 kg / 1.1 kg/m³ = 124 m³ or 4370 ft³