The National Geographic Magazine, Volume 98National Geographic Society, 1950 - Geography Indexes kept up to date with supplements. |
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Page 281
... hour , said the air - speed indicator . As our jet plane smoothly gathered momentum , the hand moved up to 510 , to 520 . In a mere training plane we were traveling nearly a hundred miles an hour faster than any American fighting ...
... hour , said the air - speed indicator . As our jet plane smoothly gathered momentum , the hand moved up to 510 , to 520 . In a mere training plane we were traveling nearly a hundred miles an hour faster than any American fighting ...
Page 288
... hour ( page 303 ) . " Will it fly faster than sound ? " I asked a Sabre pilot . " She's rated at .95 , " he replied , " but I be- lieve she'll go over the Mach . ' 22 The modern airman's term " Mach , " pro- nounced " Mock , " comes ...
... hour ( page 303 ) . " Will it fly faster than sound ? " I asked a Sabre pilot . " She's rated at .95 , " he replied , " but I be- lieve she'll go over the Mach . ' 22 The modern airman's term " Mach , " pro- nounced " Mock , " comes ...
Page 302
... hour faster than the speed of sound , which varies with temperature from 760.5 miles an hour at 59 ° Fahrenheit to 661.6 miles an hour in the cold , thin air above 35,000 feet . This is not a military airplane , but a flying laboratory ...
... hour faster than the speed of sound , which varies with temperature from 760.5 miles an hour at 59 ° Fahrenheit to 661.6 miles an hour in the cold , thin air above 35,000 feet . This is not a military airplane , but a flying laboratory ...
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