The main rotor or rotary wing on the H-3 has five identical wing blades. Other helicopters may have two, three, or four blades. A typical wing blade is shown in figure 1-17. The rotary-wing blade is made of aluminum alloy, except the steel cuff by which the blade attaches to the rotor hub. The main supporting member of the blade is a hollow, aluminum alloy extruded spar, which forms the leading edge. The steel cuff is bolted to the root end of the spar. Twenty-three individual pockets constructed of aluminum ribs, aluminum channels, and aluminum skin covering are bonded to the aft edge of the spar.
Text and cutaway view: www.tpub.com courtesy
The Eurocopter X3 concept is a High-speed long-range Hybrid Helicopter (H3 concept) which flies up to 220 knots or 410 km/h. Special thanks to Xavier – http://passiondesavions.blogspot.com webmaster – who stumbled upon this French-subtitled video:
Here is a tribute to CPT Georges GUYNEMER who was killed in action on September 11th, 1917. Three months earlier, he fought with Ernst Udet, the ace who came up 2nd after the Red Baron. You can watch hereafter how this dogfight reportedly happened, and how these fighter pilots had the gut to keep honor above all:
– « Il y a une limite à toute chose, et il faut toujours la dépasser. « Everything has a limit which has always got to be surpassed. »
– « Lorsque l’on n’a pas tout donné, on n’a rien donné. » « As long as you have not given your all, you have given nothing »
Loyal to these principles, the French ace took part in several hundreds of aerial combats, crediting 53 victories. He was shot down seven times, and he was admired for he always survived, but that September 11, Ninety-three years ago. The hero took off once again. Outnumbered by German warplanes in a last dogfighting over Belgium. Then, he fell.
Since then, the French Air Force aviators have worn a black tie in sign of mourning.