bladed structure
41USS Skipjack (SSN-585) — USS Skipjack (SSN 585), the lead ship of her class of nuclear powered attack submarine, was the third ship of the United States Navy to be named after the fish; Skipjack tuna. Her keel was laid down on 29 May 1956 by the Electric Boat Division of …
42Collins class submarine — HMAS Rankin, sixth submarine of the Collins class, underway in 2006 Class overview Builders: Australian Submarine Corporatio …
43XF-12 Rainbow — infobox Aircraft name = XF 12 Rainbow type = Strategic reconnaissance manufacturer = Republic Aviation caption = designer = Alexander Kartveli first flight = 4 February 1946 introduced = December 1945 retired = June 1952 produced = number built …
44Komatiite — Komatiites are ultramafic mantle derived volcanic rocks. They have low SiO2, low K2O, low Al2O3, and high to extremely high MgO. They were named for their type locality along the Komati River in South Africa. True komatiites are very rare and… …
45Vickers Virginia — infobox Aircraft name = Virginia type = heavy night bomber manufacturer = Vickers Limited caption = designer = first flight = 24 November 1922 introduced = 1924 retired = 1941 produced = number built = 124 status = unit cost = primary user =… …
46Arthur Sack A.S.6 — The Arthur Sack A.S.6 was an experimental German aircraft tested during World War II with an unusual circular planform.DevelopmentArthur Sack was a farmer and aero model construction enthusiast. In June 1939 in Leipzig Mockau he attended the… …
47Helicopter rotor — This article is about helicopter main rotor systems. For antitorque control, see tail rotor. Helicopter rotor The rotor head of a Sikorsky S 92 A helicopter main rotor or rotor system is a type of fan that is used to generate both the aerodynamic …
48Kherubim — The Kherubim or Kherans are an alien race in the fictional Wildstorm comic books. They were created by Jim Lee and first appeared in WildC.A.Ts #1 (1992).BiologyKherubim are various groups/races of people from the planet Khera. Kherubim resemble… …
49Caproni Ca.111 — NOTOC Infobox Aircraft name=Ca.111 caption= type= manufacturer=Caproni designer=Rodolfo Verduzio first flight=February 1932 introduced= retired= status= primary user= more users= produced= number built=148 variants with their own articles=The… …
50helicopter — /hel i kop teuhr, hee li /, n. 1. any of a class of heavier than air craft that are lifted and sustained in the air horizontally by rotating wings or blades turning on vertical axes through power supplied by an engine. v.i. 2. to fly in a… …
