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 Wines as a winemaker and Mackey as a viticulturalist. They opened their winery at a time that the Washington wine industry began developing in leaps and bound and Chinook was part of a wave of small "mom and pop" wineries that opened in the 1980s. That same year, the Yakima Valley AVA was established as the first American Viticultural Area in Washington State. Chinook released their first wines from the 1983 harvest, a Chardonnay and Sauvignon blanc in August, 1984. In November of that year they released a sparkling Riesling that they also served at their wedding reception. Throughout the 1980s