13/230
Home / Albums / Technology / Transport / Air /

Forlanini’s helicopter, 1878

Forlanini’s helicopter, 1878.jpg Hargrave’s kiteThumbnailsLaunoy and Bienvenu’s helicopter, 1784Hargrave’s kiteThumbnailsLaunoy and Bienvenu’s helicopter, 1784Hargrave’s kiteThumbnailsLaunoy and Bienvenu’s helicopter, 1784Hargrave’s kiteThumbnailsLaunoy and Bienvenu’s helicopter, 1784Hargrave’s kiteThumbnailsLaunoy and Bienvenu’s helicopter, 1784
Google+ Twitter Facebook Tumblr

A still more ambitious helicopter was that shown invented by Professor Forlanini, an Italian Civil Engineer, and launched in 1878. The lower screw was fastened to the frame of a steam engine, the upper screw was attached to the crank shaft. Steam was supplied from the globe shown beneath, which was two thirds filled with water, and well heated over a separate fire just before an ascension. As the globe was merely a reservoir of hot water and steam, carrying neither fuel nor furnace, its power waned rapidly. The best flight lasted about twenty seconds, attaining a height of 42 feet. The apparatus weighed 77 pounds, spread 21.5 square feet of screw surface, and lifted about 26.4 pounds per horse power.

Author
Aërial Navigation
A Popular Treatise on the Growth of Air Craft and on Aëronautical Meteorology
By Albert Francis Zahm
Published in 1911
Available from gutenberg.org
Dimensions
840*414
Tags
Visits
649
Downloads
13