The National Geographic Magazine, Volume 98National Geographic Society, 1950 - Geography Indexes kept up to date with supplements. |
From inside the book
Results 1-3 of 74
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 ...
... 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 ...
Page 321
... hour or even more . The British are building planes of this type , and in this country several companies are planning to replace piston engines with turboprop power . Consolidated Vultee's revolutionary new turboprop flying boat made ...
... hour or even more . The British are building planes of this type , and in this country several companies are planning to replace piston engines with turboprop power . Consolidated Vultee's revolutionary new turboprop flying boat made ...
Other editions - View all
Common terms and phrases
ACADEMY Accredited Air Force American Anthony Stewart Beach beauty Biscayne Bay boats boys bromeliads buildings built camera camp canal canoes Catalog color Company Cusco Dept Douglas DC-6 Electric famous feet Fiji Fijian fish Florida flying French Geographic Society Kodachrome Harbor hour hurricane Inca Indian Insurance Island Kirghiz Kodachrome Kodachrome by Willard Lake land light look Machu Picchu Marine Maynard Owen Williams MELVILLE BELL GROSVENOR Mention the National Miami miles MILITARY mountain National Geographic Magazine National Geographic Photographer National Geographic Society National Geographic-It identifies Navy night North Park plane Polident porcupine Puya Puya raimondii radio ride River road rock rocket ROTC sailed School ships shore South speed stars Street Susquehanna Swiss television tion town trees Valley village walls watch West wind Write York