Book of Paper Airplanes (Klutz)

£6.495
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Book of Paper Airplanes (Klutz)

Book of Paper Airplanes (Klutz)

RRP: £12.99
Price: £6.495
£6.495 FREE Shipping

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A huge thank you to She Writes Press, Tabitha Forney and Netgalley for providing me with me an e-ARC of this amazing story. And to anyone reading this: go find this book once it comes out and devour it! You will probably end up crying (a lot?), but it'll be so worth it. While there are far more advanced paper airplanes, this one, in my opinion, is the perfect balance of complexity and accessibility for the Average Paper Airplane Joe. It has far more folds than the previous two models, and also flies the best and farthest. Pay attention with this one, folks, and the payoff is well worth it. Erin has everything. Friends, a good job, she is married to Daniel, the love of her life, and they live in New York where they are building their future.

Sitting on the beach, sand between her toes, three margarita's deep when her world comes crumbling down. A plane has crashed into the World Trade Center. Daniel worked on the 101st floor of the North tower. She will never see him again. The goal for gliding flight is to descend vertically as slowly as possible. This represents the lowest rate of change of potential energy(power) which is the minimum product of drag times velocity. Generally the minimum sink rate for gliders is just above stall, and that's true for paper airplanes as well. For those interested in the details and math, finding the minimum power required involves taking the equation for powered required, differentiating with respect to velocity, and setting this equal to zero (standard calculus procedure for finding the minimum or maximum of a function. Starting with the basic parabolic drag curve; Adults are finding that many of the pursuits that were formerly considered “childish” are actually helpful for meditation, simple fun, and inspiring creativity.

Similar content to 1st book, concerning why paper airplanes fly, more hands-on experiments to demonstrate principles. Also a teachers guide for this book is available from the publisher with more paper airplane information] Tabitha Forney wrote this with delicate hands. She took much thought into creating Erin - a grieving widow on the brink of collapse. I felt as if I was sitting right beside her, scouring the ash ridden streets of NYC in search of lost hope. I cried ugly tears right along with her. I can only imagine how difficult it was for the author to pen such raw emotions. This book is an emotional punch in the face, a raw journey into tragedy and desperation and grief, but also a powerful clinging to life, to a future that's scary and unknown and that hurts so much you want to tear the soul out of your own body.

Real airplanes have to be optimized to perform some mission. Since its tough to beat the basic wing/fuselage/tail configuration for aerodynamic efficiency, most planes look that way. The mission of a paper airplane is to provide a good time for the pilot. Sometimes that means the amazement of seeing something radical fly through the air. The combinations of wings, tails, fuselages, and other parts that can be made to fly is endless. Beyond the traditional paper airplane designs there are many exotic shapes that don't look like they should fly. One of these is the "hoop shape", known as the Vortex in my original book. Another exotic shape is in my 1997 calendar called the X-Plane. It is basically two wings attached in the middle and at different angles to form an "X" shape. Other more familiar shapes, but not thought of as airplanes, can also be made to fly. One of these is the Starship from my 1997 calendar, which looks like a futuristic space craft , but it actually flies. With paper airplanes its easy to make airplanes that don't look like real airplanes. Most people who are reading this know that airplane wings are "Cambered" which means they have generally a curved shape, with the top of the airfoil rounded and the bottom fairly flat. As explained in section 3.0, paper airplane wings must be thin to work well. In addition, they need very little camber, and generally any curvature is limited to the front portion of the wing. I have had people ask me why I don't advocate cambered airfoils for paper airplanes in my books. Since most paper airplanes are flying wings, only small amounts of camber are practical, as large amounts of camber create nose down pitching moments which need tails to balance. Generally I do use a little curvature at the leading edge of the wing. I have noticed that paper airplane performance is not noticeably degraded with flat, uncambered airfoils. The reason for this is likely due to low Reynolds numbers. Remember that a large portion of the boundary layer across the front of the wing is laminar flow, but for high lift we need a turbulent boundary layer. The use of a flat uncambered wing produces a large pressure gradient at the leading edge, which likely aids the transition to a turbulent boundary layer, which could likely be the reason for little camber in insect wings. Also, swept wings with uncambered leading edges promote vortex flow just behind the leading edge on the upper surface. Although lift coefficients at these Reynolds numbers aren't large enough to promote a large amount of vortex lift(vortex lift increases exponentially with lift coefficient), any vortex flow likely helps the transition to a turbulent boundary layer. M.M. O'Meara and T.J.Mueller, "Experimental Determination of the Laminar Separation Bubble Characteristics of an Airfoil at Low Reynolds Numbers", AIAA-86-1065, May 1986

Fold in half, but make you sure you fold it outwards on itself, not inwards. You want the previous triangular fold to be visible on the bottom edge. This is a very good reference, as hand launched gliders and paper airplanes have the same aerodynamics] Paper airplanes are very helpful when you want to illustrate air traffic control guidelines. There was a time when people used the paper airplane to explain and discuss the fundamental parts of real aircraft. People of a certain age may recall buying those fancy "White Wings" in the store made from several sheets of squeezed chipboard paper, and these cutout versions are still paper airplanes too. How to Make a Paper Airplane? This bird-inspired paper airplane does more than look good, it can give you worthwhile gliding distance that more closely emulates an actual bird of prey. Functional, delicately decorative, and best of all, easy to fold; there’s no one who can’t find something to love here. A number was devised which gives the relative importance of viscosity in fluid flow. It is called the Reynolds Number, and it is the ratio of momentum forces to viscous forces in a fluid. The bigger the number, the less influential the viscosity. The viscosity is essentially a constant for a fluid (it changes a bit with temperature), but momentum is proportional to the speed of a fluid over a surface times the distance it has traveled over the surface. For air it is roughly:

Fold the top two corners down so they meet the center crease. This is the classic way to start a paper airplane, and probably what you first learned as a kid. Substituting the minimum sink results into the power equation, and knowing that vertical velocity is power/weight, gives the following: Over dinner she tells Daniel she is leaving the next day for Spain. They disagree. He doesn't want her to go and she doesn't want to stay. The next day they hardly speak, he heads to work. Just as she's getting in a cab to leave for the airport Daniel arrives to kiss her cheek goodbye and she's off. Daniel who writes wishes on paper planes and set them on fire to make them come true. Daniel who enjoys every second of life, like a kid. Daniel who's too good for this world. Daniel, who's a trader working on the 101 floor of the North Tower of the World Trade Center, who disappears on a warm September morning when a plane crashes into his building at 8.46 in the morning on 9/11/2001. I currently live with my wife and two dogs in Fort Walton Beach, FL where I work as an aeronautical engineer for the Air Force doing research on all sorts of air vehicles. Previously I worked for Boeing and McDonnell Douglas in St. Louis on jet fighters and other military vehicles.Many thanks to Netgalley and She Writes Press for sharing a free copy with me in exchange for a honest review. All opinions are my own.] There’s no reason to go over the top when it comes to making a paper airplane. Classics are that way for a reason, and the dart is as traditional as they come. Made for distance and simple to fold, there’s no need to overthink, underthink, or even really think at all. Japanese businessman Takuo Toda has made his mark on the world in more ways than one. He will go down in history as having folded and thrown the paper airplane with the longest hang time. He beat the previous world record by 0.3 seconds, for a total of 27.9 seconds. Not only that, but he’s even gone so far as to write entire books on folding paper airplanes–talk about passion!

This wasn't going to be easy. If successful, it would be my forth time at setting the record. Each time was the absolute I could achieve, with improvements resulting from improving my planes and from working on a faster throw. My best unofficial time, 20.88 seconds, was the product of months of working out and well over 100 airplanes constructed. And I have another enemy sneaking up on me as well - time. I am 35 years old, and soon I know my arm speed is likely to decrease. Paper is a lousy building material. There is a reason why real airplanes are not made of paper. Although high aspect ratio wings reduce drag, they also require better building materials. The low strength of paper does not allow the use of high aspect ratio wings. I commend Tabitha for being upfront and warning her readers that the prologue may be traumatic for some people.It’s 2001, and Erin O’Connor’s life is going great. She is a high-powered attorney in Manhattan and is married to a man she loves dearly, Daniel O’Connor, a trader on the 101st floor of the North Tower at the World Trade Center. When her best friend invites Erin to go to Mallorca after a breakup, Erin is hesitant—she’ll miss her mother-in-law’s birthday party—but ultimately decides to go despite Daniel wanting her to stay. The original design was by 12 year-old Arturo Valdenegro, whose submission was accepted in a contest run by the Pima Air & Space Museum. Then, a team of aerospace engineers lead by one of the designers of the B2 stealth bomber brought Arturo’s vision to larger-than-life. Given an initial lift by a helicopter, Arturo’s Desert Eagle is a soaring example of American ingenuity spanning generations. First you fold the paper in half lengthwise, and then unfold. This initial crease is simply a guideline for the next folds. For more than twenty years, Harry Smith (1923–1991) collected paper planes that he found on the streets of New York. Now 251 planes have been documented in Paper Airplanes: The Collections of Harry Smith Catalogue Raisonné, Volume I, a book showcasing Smith’s collection. Jason Fulford, co-founder and publisher of J&L Books, photographed the planes before Anthology Film Archives donated them to the Getty Research Institute, in California. Fulford, who did not know Harry Smith during his lifetime, was taken by the planes and their whimsical nature. As the photographic process unravelled, the idea of sharing the photographs to a wider audience became inevitable.



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