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Français : En 1907, l'inventeur français Paul Cornu a fabriqué un hélicoptère qui utilisait deux rotors contrarotatifs de 20 pieds (6 mètres) entraînés par un moteur Antoinette de 24 ch (18 kW). Il a soulevé son inventeur à environ cinq pieds (1,5 mètre) et est resté en l'air une minute.
English: In 1907, the French inventor Paul Cornu made a helicopter that used two 20-foot (6-meter) counter-rotating rotors driven by a 24-hp (18-kW) Antoinette engine. It lifted its inventor to about five feet (1.5 meters) and remained aloft one minute.
Date circa 1907
date QS:P,+1907-00-00T00:00:00Z/9,P1480,Q5727902
Source http://www.centennialofflight.gov/essay/Rotary/early_20th_century/HE2G8.htm
Transferred from en.wikipedia
Author Unknown authorUnknown author
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(Reusing this file)		 PD-USGOV

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  • 2007-01-04 21:14 Signaleer 504×157×??? (27573 bytes) In 1907, the French inventor Paul Cornu made a helicopter that used two 20-foot (6-meter) counter-rotating rotors driven by a 24-hp (18-kW) Antoinette engine. It lifted its inventor to about five feet (1.5 meters) and remained aloft one minute. ==Source=

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current07:27, 25 February 2023Thumbnail for version as of 07:27, 25 February 2023984 × 623 (376 KB)FOX 52wider view
14:06, 26 August 2008Thumbnail for version as of 14:06, 26 August 2008504 × 157 (27 KB)File Upload Bot (Magnus Manske) {{BotMoveToCommons|en.wikipedia}} {{Information |Description={{en|In 1907, the French inventor en:Paul Cornu made a helicopter that used two 20-foot (6-meter) counter-rotating rotors driven by a 24-hp (18-kW) Antoinette engine. It lifted its invento

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