Can you imagine having to drive long distances in a car, train, or bus? Airplane travel changed all that, making travel much quicker, easier, and less stressful. This book addresses the four factors that make it possible for an airplane to fly: weight, lift, thrust, and drag, and details what each of these things means to maintain the safety of the passengers who fly on the over 64 million flights a year in the United States. So, buckle up and enjoy...