Navigating the Air a Scientific Statement of the Progress of Aeronautical Scien
Navigating the Air a Scientific Statement of the Progress of Aeronautical Scien
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30 x 1. 3 NAVIGATING THE AIR 83 equals 39 miles per hour. But because the friction of our machine will be much greater in proportion than the vulture's, we must be content with much lower speed, say 30 miles per hour.
Its wing surface will be in the proportion of the square of the dimension ratio, 1. 72. Dimension ratio 1. 72 squared equals 2. 9584x7 square feet surf ace of the vulture's wings equals 20. 7088 square feet for the wing sail area.
The spread of our wings being 15 feet 2 inches, we... shall make them 1. 25 feet wide, narrower in proportion than the vulture's, which will give about 18 square feet surface per pair and 36 square feet surface in two sets of wings.
The radius of the center of effort of each wing will be 5. 687 feet.
The weight divided by the radius of the center of effort, 155 divided by 5. 687 feet equals 27. 25 Ibs. At the two centers of effort of the two descending wings, and say 13. 6 Ibs. At the center effort of each wing.
TO ASCERTAIN THE SPEED OF WING BEAT NECESSARY TO BALANCE THE TOTAL WEIGHT WEIGHT 155, divided by radius of center of effort, 5.
What to read after Navigating the Air a Scientific Statement of the Progress of Aeronautical Scien?
You can find similar books in the "Read Also" column, or choose other free books by Aero Club of America to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
30 x 1. 3 NAVIGATING THE AIR 83 equals 39 miles per hour. But because the friction of our machine will be much greater in proportion than the vulture's, we must be content with much lower speed, say 30 miles per hour.
Its wing surface will be in the proportion of the square of the dimension ratio, 1. 72. Dimension ratio 1. 72 squared equals 2. 9584x7 square feet surf ace of the vulture's wings equals 20. 7088 square feet for the wing sail area.
The spread of our wings being 15 feet 2 inches, we... shall make them 1. 25 feet wide, narrower in proportion than the vulture's, which will give about 18 square feet surface per pair and 36 square feet surface in two sets of wings.
The radius of the center of effort of each wing will be 5. 687 feet.
The weight divided by the radius of the center of effort, 155 divided by 5. 687 feet equals 27. 25 Ibs. At the two centers of effort of the two descending wings, and say 13. 6 Ibs. At the center effort of each wing.
TO ASCERTAIN THE SPEED OF WING BEAT NECESSARY TO BALANCE THE TOTAL WEIGHT WEIGHT 155, divided by radius of center of effort, 5.
What to read after Navigating the Air a Scientific Statement of the Progress of Aeronautical Scien?
You can find similar books in the "Read Also" column, or choose other free books by Aero Club of America to read onlineMoreLess
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