800-pound paper airplane takes flight

March 27, 2012 by Lisa Zyga, Phys.org weblog

A helicopter hoists the giant paper airplane into the sky. Image credit: Pima Air & Space Museum
(PhysOrg.com) -- An 800-pound, 45-foot-long paper airplane with a 24-foot wingspan may be the largest paper airplane ever to glide across the sky. After being hoisted to a height of 2,703 feet by a helicopter last Wednesday, the plane was released and glided for an estimated 7-10 seconds, reaching speeds of close to 100 mph.

The gigantic paper airplane is part of The Great Paper Airplane Project hosted by the Pima Air & Space Museum in Tucson, Arizona, with the goal of getting kids interested in science and engineering.

A much smaller paper airplane designed by 12-year-old Arturo Valdenegro, a seventh grader at Santa Cruz Catholic School in Tucson, inspired the design of the giant plane. Valdenegro, who is now considering a future career as an engineer, experimented with different paper airplane designs until he got one to fly 75 feet. That design beat out 150 others in the museum's paper airplane design contest in January.

Video footage from March 21 of the paper airplane gliding on a private airstrip east of Eloy, Arizona. Video credit: Pima Air & Space Museum

After winning the contest, Valdenegro flew to Los Angeles to work on scaling up the design with Art Thompson, who formerly worked on the B-2 Stealth bomber for Northrop Grumman and for NASA and the U.S. Air Force. The team used falcon board, a type of corrugated cardboard, to build the plane. Among their challenges, they watched one of their mid-size models, a 15-footer, crash during a test flight.

Further challenges arose when Valdenegro, Thompson, and others first attempted to lift the final plane, dubbed Arturo's Desert Eagle, with a crane last week. The plane's wings began to fold and the fuselage buckled, so they wheeled it back to the tent hangar for repairs. Then they tried lifting the massive plane by the nose instead of the midsection with a Sikorsky helicopter, and achieved several seconds of high-speed gliding before stress on the tail sent the plane crashing to the ground. The huge plane suffered serious damage, but Valdenegro wasn't too upset.

"You can always make another one," he told the film crew.

Explore further: Let there be flight

More information: via: Arizona Daily Star and PopSci

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5 / 5 (1) Mar 27, 2012
This is awesome. I always wanted to make a huge paper airplane. It seems like it has a lot of rotational instability - maybe they should have added a vertical tail. Also, it would have been cool to watch the crash. haha.
Mar 27, 2012
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not rated yet Mar 27, 2012
If you'd like to convert any sort of units in any combination try Frink ( http://futureboy.us/frinkdocs/ ). It's easy, small, free web applet or Java install calculator with a terminal-style GUI interface. It has powerful scripting functions, not only handles all physical units from ancient to modern but also can convert currency values between different countries or different years, and even translate human languages (including unicode and right-to-left languages).
I'll bet the helicopter got no more than 9 leagues to the firkin.
Mar 27, 2012
This comment has been removed by a moderator.
5 / 5 (2) Mar 27, 2012
@EWH: If we only got rid of science articles constantly written with American measures, we'd learn the SI units in a couple of years. Heck, all Europeans had to learn a new currency (which is arguably harder), and did it in a couple of years. And we'd all be happier ever since.

How many square feet to the acre? How many cups to the gallon? This is the kind of crap that wastes Americans' time. How many square meters to the hectare? How many centiliters to the liter? Any European can answer these without having to spend nights learning Holy Conversion Factors.

This is what makes much of measuring and then much of math feel intractable to the "mere mortals". Just the other day I saw a clip on YouTube, where a boy asked his blonde girlfriend "how long does it take to drive 80 miles at 80 mph?" She ruminated on it for a good while, and never got the right answer. I'd wager that there is not a girl blonde enough in Europe to seem that clueless. (And it's not us, it's the units.)

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