Helicopters

Helicopters are fascinating. Both of these helicopters are turbine driven and during the airshow this summer I had the opportunity to "look under the hood" of a turbine driven helicopter similar the these. Helicopters require an extraordinary amount of maintenance to keep them flying because they have so many linkages, reduction gears and control systems to get them hovering and moving horizontally. Many of their systems are in duplicate because obviously they don't glide as well as a fixed wing aircraft.
Too cold to do much, 30 below again today.
cheers,
josh