The National Geographic Magazine, Volume 98National Geographic Society, 1950 - Geography Indexes kept up to date with supplements. |
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Page 307
... engine resumed full power and pushed the plane up out of danger for another , more suc- cessful , attempt . " Why did the pilot wait so long ? " I asked . " A jet doesn't respond as quickly as a con- ventional airplane , " explained the ...
... engine resumed full power and pushed the plane up out of danger for another , more suc- cessful , attempt . " Why did the pilot wait so long ? " I asked . " A jet doesn't respond as quickly as a con- ventional airplane , " explained the ...
Page 310
... engine is most economical in fuel at around 90 percent of full power , compared to about 60 percent for a piston engine . Also , it gives more miles to the gallon in the rare upper air where " drag , " the friction of the atmosphere ...
... engine is most economical in fuel at around 90 percent of full power , compared to about 60 percent for a piston engine . Also , it gives more miles to the gallon in the rare upper air where " drag , " the friction of the atmosphere ...
Page 321
... engines are vibrationless compared with the piston engine . With the turboprop its advocates predict airliner speeds up to 500 miles an hour or even more . The British are building planes of this type , and in this country several ...
... engines are vibrationless compared with the piston engine . With the turboprop its advocates predict airliner speeds up to 500 miles an hour or even more . The British are building planes of this type , and in this country several ...
Contents
Copraship Voyage to Fijis Outlying Islands By Marjory C Thomas 121 | viii |
Down the Susquehanna by Canoe By Ralph Gray With 45 illustrations in color from | xvi |
Here Come the Marines By Frederick Simpich 647 | xxii |
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