Helium Powered Drones

Airpup is an exceptionally small kite balloon (aka an aerostat), which is a quiet, easy to use alternative for drones. Kite balloons can fly for days. They have no active controls, no software, no moving parts — they just point into the wind and follow where towed.

Kite balloons can be used for aerial photography, as a replacement for a radio tower, or for capturing weather data. Airpup is based on early 20th century kite balloons. It is the first new kite balloon design in 25 years. See also: Kite aerial photography.

Obsolete Technology Prints and Photograph Collections

Tissandier collection

Three wonderful collections from the Library of Congress, showing obsolete technologies.

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Floating Citadels, Powered by Wind and Water Mills

floating citadels

This engraving, published in 1798, shows the gigantic St. Malo raft, designed in 1791 during the French Revolution. The engraving informs us that this extraordinary structure was 600 feet long by 300 broad, mounts 500 pieces of cannon, 36 and 48-pounders, and is to convey 15,000 troops for the invasion of England. In the midst is a bomb-proof, metal-sheathed citadel.

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Airships Past and Present, by A.Hildebrandt (1908)

airships past and present

Airships past and present – together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon” by A. Hildebrandt, captain and instructor in the Prussian Balloon Corps (1908). Pictures, table of contents and list of illustrations below. Related: Camping in the clouds – the zeppelin that never lands / Green slow air cargo / Kite aerial photography.

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