The theoretical lift and pitching moment due to angle of attack and pitching and the lateral force and yawing moment due to rolling of a trapezoidal wing are derived. The equations are applicable when the inboard Mach line from a leading-edge tip intersects the trailing edge and the outboard Mach line lies ahead of the side edge. When the side edges are raked in, the former condition is sufficient. A comparison based on theoretical expressions of the lift and rolling effectiveness for half-delta tip (point forward) and trailing-edge flaps on various plan forms is made.

Some have said that if God had wanted us to fly, He would have given us wings. And yet, we were given the ability to dream, to think with our heads, to have courage in our hearts, and to build with our hands. Truly, we have been given everything we need: We really can fly on our own wings! Chris Heintz is a professional aeronautical engineer with a prolific career spanning over 40 years designing and building light aircraft. Recognized worldwide as a uniquely talented and accomplished designer, his aircraft are known and appreciated for their simplicity of construction, pilot-friendly cabins and controllability as well as remarkable performances. Today, Chris Heintz designs are flown throughout the world, mostly by recreational pilots who have assembled their own planes from a kit. His most popular models are also factory-assembled and sold as ready-to-fly sport aircraft on three continents. In FLYING ON YOUR OWN WINGS, Mr. Heintz shares his knowledge and insights into the art and science of light aircraft design. He “walks” readers through the essential understanding and skills required to conceive, develop, build and even test-fly their own personal light airplane. Basic mathematics, essential aerodynamics and stress analysis are just a few of the chapters of this fascinating book. Heintz even provides a sample design to help would-be designers take their first step towards imagining and creating their own wings. Truly a beginner’s guide to everything you need to know in order to achieve that age-old dream: To fly on your own wings!

Every time Jahama Swallowtail looks in the mirror, she sees the same chubby caterpillar. Butterfly Middle School begins tomorrow, and although all the other girls have gotten their wings, Jahama is dreading the fact that she will be starting this school year in exactly the same way she ended the last one. Jahama knows very little about wings, except that she really wants her own, but she is about to get an extremely brutal lesson in how to tell the difference between glamorous wings and genuinely beautiful ones. As the oldest child and only daughter of a single mother, Jahama is well acquainted with struggle. Or so she thinks. But she is about to be taught by a hideous teacher what all-too-real struggling looks like. And through a life and death situation, she will begin to grasp the meaning of what it entails to overcome lifes toughest challenges. From jeopardizing a lifelong friendship to try to fit in, to realizing that her own wings might resemble the unattractive wings that her mother and the hideous teacher both have, she will figure out that there are many cocoons in life. She will also begin to understand that although she will need to ask for help from others and especially from God, she alone will be responsible for how she emerges from each one. Most of all, she will begin the process of discovering that if you are not complete without wings, you will never be complete with them.

An airline captain crafts a riveting, adventurous novel inspired by the remarkable true life of pioneer aviatrix Bessie Coleman, a Black woman who learned to fly at the dawn of aviation and found freedom in the air A few years after the Wright brothers’ first flight, Bessie was working the Texas cotton fields with her family when an airplane flew over their heads. It buzzed so low she thought she could catch it in her hands. Bessie was fearless. She knew there was freedom in those wings. The daughter of a woman born into slavery, Bessie answers the call of the Great Migration. She moves to Chicago, where she wins the backing of two wealthy, powerful Black men—Robert Abbott, creator and publisher of the Chicago Defender, and Jesse Binga, the founder of Chicago’s first Black bank. Abbott becomes her mentor, while Binga becomes her lover. Her true first love, though, remains flying. But in 1920, no one in the United States will train a Black woman to fly. So, twenty-eight-year-old Bessie learns to speak French and sets off for Europe. Two years ahead of Amelia Earhart, Bessie earns her pilot's license, and later she learns death-defying stunts from French and German dogfighting combat pilots. While she finds no prejudice in the air, Bessie wrestles with other challenges on the ground. A plane crash nearly kills her, her brothers seem to be crumbling under the weight of Jim Crow, and, while grappling with tough truths about Binga, Bessie begins to wonder if the freedom she finds in the sky means she must otherwise fly solo. With tenderness and mastery, Carole Hopson imagines the breathtaking moxie Bessie Coleman harnessed in order to lift herself out of poverty and become known as “Queen Bess.”

They are America's best fighter pilots -- from the Navy, Air Force, and Marines. Heroes who push the envelope with their machines, their bodies, and the will to fight and win on their... WINGS OF FURY Here, these airborne warriors reveal themselves as never before. Ride shotgun with TOPGUN pilot Dale "Snort" Snodgrass as he becomes the first student pilot ever to land an F-14 Tomcat on an aircraft carrier. Silver Star winner Rob Graeter recalls a Cold War close call as he flew his F-15 Eagle over Soviet waters -- almost triggering World War III. Feel the adrenaline as Brian "Rocky" Fitzpatrick remembers test-flying the F/A-18 Hornet when it suddenly went haywire, leaving him with a crippled plane, a faulty parachute -- and a very long way down.... From the training grounds of Miramar to combat in Vietnam and Desert Storm, these are the stories of those who defend our skies -- and the dramatic evolution of modern air warfare.