
The Diesel Broadens Its Field
"Packaged Power" for Many Uses . . . A Complete Power Plant in One Unit . . . How Will Increased Fuel Demand Affect the Market Price?

The Diesel Broadens Its Field
"Packaged Power" for Many Uses . . . A Complete Power Plant in One Unit . . . How Will Increased Fuel Demand Affect the Market Price?

More Horses in the Air
A 50-Fold Increase in Airplane Engine Power Within 34 Years, Basic Advances, Skill II Design and Research, End Not Yet in Sight

Air Transport Looks Aloft
Flight in the Stratosphere Offers Many Advantages, Experimental Flights being Carried Out Systematically, Huge New Planes Designed...

The Rise of Air Transportation
Past, Present, Future, Air Mail Reaches All Five Continents, World-Wide Development, Catapults May Become Important

Aircraft Grow Larger
Efficiency Increases With Size . . . 55-Ton Flying Boats Designed . . . 80-Ton Next . . . Promenade Deck in Wings . . . Daily Service to Europe

And Now, The Atlantic
One of the Last Areas to be Conquered By Commercial Air Transport . . . Technical Advances Have Outrun Political and Industrial Plans

Civil Aviation in National Defense

Why Seek Air Records?
Record Flights Point the Way to Scheduled Operation, Prove Correctness of Designs, Test Equipment, Provide an Index of Performance

Wings that Turn
Possibilities of Rotating Wing Aircraft, Vertical Rising, High-Speed, Roof-Top Landing

Safety in the Air
More Improved Weather Service Needed, New Radio Aids Important, Weeding Out of Incompetent Pilots Held to be a Prime Necessity

Fly High For Comfort
Approaching the Stratosphere . . . For Economy and Regularity of Operation . . . More Speed With Less Power . . . Avoiding the Bumps

Wings Over Water
Increased Use of Water-Going Aircraft May Presage a New Era in Aerial Transportation

Airmail
American Air Transport Operators Have Built Up the Finest System of Its Kind in the World. "They Can Do Even Better if They Do Not Have to Play With Loaded Dice."

Business Flies At Higher Speeds

Scheduled Atlantic Flying How? When?

Air Transport Becomes Luxurious

The Distance Flier Takes a Chance
But Highly Refined Devices Act To Reduce the Gambling Element

Fly Fast--Land Slow
High Speed and Safety Are Essential to Aerial Transportation: How Both Ends Are Being Gained

The Truth About Aviation Stocks
Basically Sound, the Aircraft Industry Has Suffered Severely From Growing Pains, But Is Now Becoming Stable

Giant Airplanes
Plans for the Future, and Present Successful Tests, Portend a New Era in Heavier-than-Air Flying

What is the Future of Aviation?
"Remarkable as Has Been the Growth of Flying, Still More Vital Developments Seem to Lie Just Ahead"

Is the Airplane Diesel Practical?
A Summary of the Opinions, pro and con, of Men High in the Aeronautical Industry