I want to lift a man who averages 180-210 lbs. At sea level with hydrogen, how many square feet would I need?

Question

I want to see how much balloon i would need to lift a paraglider before he could detach and then glide.

Answer 1

DECATUR - Have you ever dreamed of grabbing a bunch of helium balloons and floating off into the wild blue yonder?

Well, John Ninomiya of San Diego had that dream - and he's made it a reality as a cluster balloon pilot


Flying cluster balloons isn't like tying a bunch of helium balloons to a lawnchair and becoming airborne. (Californian Larry Walters did that in 1982 with 42 helium weather balloons. He only intended to go up a couple of hundred feet, but soared to 16,000 feet, and somehow survived flight after hitting some electrical wires

His rig includes a standard paraglider harness and parachute. He attaches between 40 to 120 balloons of varying size. It takes about 8,000 cubic feet of helium to lift the 180-pound pilot, 180 pounds of ballast (water) and 120 pounds of gear.


Cluster balloons, like all balloons, are aircraft that require skill and training to operate safely," said Ninomiya, who has been flying for more than 20 years. "Before I began flying cluster balloons, I was an FAA (Federal Aviation Administration) licensed hot-air balloon pilot and had over 400 hours of pilot time in conventional hot-air balloons and Cloud Hoppers.

"These skills aren't rocket science, but they are not something you're going to figure out on your first flight while you're drifting toward the high tension lines and imminent crispy-critterhood."

Based on this,, you would need a lot of training and expertise and this expands thru yrs just like Ninomiya. So you need 40- 12 0 balloons and 8,000 sq feet.

You should also read on this guy's adventure.:

Ballooning into the Sky
... "Ballooning into the Sky -- Balloons filled with helium can lift a man into the ... The paraglider harness also contained a reserve parachute, which I ...www.balloonlife.com/publications/balloon_life/9706/pleiades.htm - 26k - Cached - More from this site - Save

Answer 2

i think of that the distribution of the melting ice is amazingly important for this subject. If one considers purely the warmth means of ice and the warmth of fusion, the time required to soften all the ice is on the order of 8000 years. initially, most of the greater means purely is going into warming Antarctic ice from -30 C to 0 C. in this foundation, one would anticipate a sluggish fee of sea point upward push at early time and an extremely speedy upward push interior the final millennium. this elementary kind would not incorporate the effects of ice transport, which might tend to make the curve nearer to linear. i think of that the present fee of sea point upward push may well be a spike interior the backside fee from the melting of small glaciers. After the small glaciers are long gone, the fee of sea point boost would shrink, a minimum of interior the fast term. Do small glaciers have sufficient volume to maintain the present fee of sea point upward push for the subsequent one hundred years?

Answer 3

Hi. None. You need cubic feet.

Answer 4

sorry, already have enough homework.