By Kate Boehm Jerome, David Cain

Age variety: eight - eleven Years

Illustrated by means of David Cain

Amelia Earhart used to be a lady of many "firsts." In 1932, she turned the 1st lady to fly solo around the Atlantic Ocean. In 1935, she additionally grew to become the 1st lady to fly around the Pacific. From her early years to her mysterious 1937 disappearance whereas making an attempt a flight world wide, readers will locate Amelia Earhart's existence a desirable story.

Examines the lifetime of pioneer aviator Amelia Earhart, who mysteriously disappeared in the course of an around-the-world flight in 1937.

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This difference of 6 knots requires a longer time on the water and generates more stress on the floats. The situation becomes more complex when wind is a factor. If the wind is blowing against the current, its speed can help the wings develop lift sooner, but will raise higher waves on the surface. If the wind is in the same direction as the current, at what point does the speed of the wind make it more worthwhile to take off against the current? In the previous example, a wind velocity of 3 knots would exactly cancel the benefit of the current, since the air and water would be moving at the same speed.

With respect to water roughness, consider the effect of a strong water current flowing against the wind. If the current is moving at 10 knots and the wind is blowing the opposite direction at 15 knots, the relative velocity between the water and the wind is 25 knots, and the waves will be as high as those produced in still water by a wind of 25 knots. The advisability of canceling a proposed flight because of rough water depends on the size of the seaplane, wing loading, power loading, and, most importantly, the pilot’s ability.

By far the greatest impact on performance comes from the parasitic drag of the floats. TAKEOFF In a landplane, takeoff distance increases with additional takeoff weight for two reasons: it takes longer for the engine and propeller to accelerate the greater mass to lift-off speed, and the lift-off speed itself is higher because the wings must move faster to produce the extra lift required. For seaplanes, there are two more factors, both due to water drag. As seaplane weight increases, the floats sink deeper into the water, creating more drag during initial acceleration.

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Who Was Amelia Earhart? by Kate Boehm Jerome, David Cain
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