Helicopter rotor of gravity fore-aft. However, it requires the expense of two large rotors rather than the more common one large main rotor and a much smaller tail rotor. The Boeing CH-47 Chinook is the most common tandem rotor helicopter. Coaxial rotors are a pair of rotors mounted one above the other on the same shaft and turning in opposite directions. The advantage of the coaxial rotor is that, in forward flight, the lift provided by the advancing halves of each rotor compensates for the retreating half of the other, eliminating one of the key effects of dissymmetry of lift: retreating blade
Chinook Health Mennonites live in the Chinook Health region. Numbers vary as groups migrate between home communities in Central America and the region. Chinook Health operates 12 hospitals, 15 community health centres, and 5 continuing care facilities in 14 communities. The health region employs more people in Lethbridge than any other single organization. Employees include 3,500 staff and 200 physicians. Chinook Health provides the following services throughout the region: Chinook Health Chinook Health is part of Alberta Health Services, the governing body for healthcare regulation in the Canadian province of Alberta. Chinook Health administers public health services in southwestern Alberta, Canada; the