Abraham Lincoln is the source for many variations of the following quote: If I have only a day to cut down a tree, I will spend the first half of it sharpening the axe. Jeff Olson adds to that analogy: How you swing the axe, how hard, in what arc and with what rhythm on […]
When you are in motion, it is far easier to maneuver an airplane, to make positive changes. The same is true in life.
What is shimmy? It is an unstable lateral/yaw oscillation in a landing gear. This NASA video shows shimmy testing at Langley, and in it, you can see the lateral movement and twisting modes developing. Here’s what one presentation describes: “Among the various components that make up an aircraft, the landing gear is an important and […]