The Azerbaijan Airlines plane that crashed killing 38 people was downed by a Russian air defence system, according to four Reuters sources. The Embraer 190 passenger jet was en route from ...

Russian air defence systems may have brought down an Azerbaijan Airlines plane this week, a U.S. official said Friday after an Azerbaijani minister also suggested the plane was hit by a weapon ...

From the patent drawings, it appears the engine uses a mechanism on the crankshaft to vary the stroke of the piston as it proceeds through the combustion cycle. If the patent diagrams are anything ...