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An early flying machine...

New York City Underground Railway...



Item # 552599

February 13, 1875

SCIENTIFIC AMERICAN, New York, February 13, 1875
 
* Early aviation... Strange looking flying machine...
* Almost 30 years before Wright Brothers...
* Images of the NY City Underground Railway...

An inside page has a 4 by 5 illustration of Blackford's Flying Machine. The companion report headed A New Form of Flying Machine, written by Mr. Blackford, begins with his solution to successful flight: "Screw propulsion is the principle upon which will, probably, be accomplished the great problem of aerial flight. The plan here proposed is a modification of the device presented...in a recent issue....The horizontal driving shaft is attached below the spar, above which the wing propellers revolve in opposite directions. This shaft is rotated by means of cranks actuated by the machinery below, and is connected with the wings by means of bevel gearing. Many more details about the mechanics of this flying machine and its potential to fly. The report concludes with an interesting observation about the benefits of flight, mentioning that: The time may yet come when...nations will be brought into such easy, rapid, frequent, and intimate commercial and social connection as to result in a grand unity in language, law, and government on earth."

The issue also contains images (see photos) of the NY City Underground Railway at "125th Street - The Harlem Open Cut and Cross Street Bridges".

Other illustrations with text throughout this 16 page issue. The issue is complete and is in good condition, with only a small amount of foxing.

Category: Post-Civil War

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$64.00