reversible propeller
41Conotoxin — Alpha conotoxin precursor α Conotoxin PnIB from C. pennaceus, disulfide bonds shown in yellow. From the University of Michigan s Orientations of Proteins in Membranes database, PDB …
42HMS Exmouth (F84) — HMS Exmouth , pennant number F84, was a Royal Navy anti submarine warfare frigate of the Blackwood or Type 14 class. Exmouth became the first major warship to be powered by gas turbine engines alone when, in 1966, she was taken in hand and was… …
43PB2Y Coronado — Infobox Aircraft name= PB2Y Coronado caption= An early PB2Y 2 in flight. type= Maritime patrol bomber manufacturer= Consolidated Aircraft designer= first flight= 17 December 1937 introduced= retired= status=Retired primary user= United States… …
44Robert Stanley — –Test pilot and engineer Robert M. Stanley (1912 1977) became the first American to fly a jet aircraft on October 2, 1942, as a civilian test pilot for Bell Aircraft. He flew the Bell XP 59A Airacomet, which was the United States first turbojet… …
45Spencer Heath — (Vienna, Virginia 1876 ndash; Leesburg, Virginia 1963) was an engineer, attorney, inventor, manufacturer, horticulturist, poet, philosopher of science and social thinker.Spencer Heath MacCallum, [http://www.independent.org/pdf/tir/tir 02 2… …
46Soloy Pathfinder 21 — infobox Aircraft name =Soloy Pathfinder 21 type =Twin Turboprop manufacturer =Cessna/Soloy caption = designer = first flight = introduced = retired = status = uncertified test bed primary user = more users = produced = number built = 1 unit cost …
47Silverplate — was the code reference for the United States Army Air Forces participation in the Manhattan Project during World War II. Originally the name for the aircraft modification project for the B 29 Superfortress to enable it to drop an atomic weapon,… …
48Korona (Solarboot) — Die Solgenia ist ein Forschungsschiff und Solarboot in zweiter Generation der Hochschule Konstanz und das weltweit erste überhaupt mit einem neuartigen PV H2 Elektro Hybridantrieb für solare Brennstoffzellentechnik, Photovoltaik und… …
49An-2 — Antonov An 2 Antonov (PZL) An 2P …
50Antonov An-2 — Antonov (PZL) An 2P Rôle Transport Équipage 2 Premier vol 31 août  …
