B:159th Avn(ASH)

• Origins in Vietnam: B Company, 159th Aviation Battalion (Assault Support Helicopter), known as B/159th Avn(ASH), was activated during the Vietnam War to provide heavy lift helicopter support using CH-47 Chinook helicopters. • Nickname "Big Windy": The unit earned the nickname "Big Windy" due to the powerful rotor wash generated by its CH-47 Chinooks. • Role as a "Sky Train": B/159th Avn(ASH) was often referred to as the "Sky Train" because of its critical role in moving troops, artillery, vehicles, and supplies across the challenging terrain of Vietnam. • Key Operations: The unit participated in numerous major operations, including Lam Son 719 in 1971, a cross-border mission into Laos to disrupt North Vietnamese supply lines. • Combat Rescues: B/159th Chinooks were frequently used for emergency extractions of troops under fire, and several crews received commendations for bravery during high-risk missions. • Innovative Sling Load Techniques: The unit developed and refined advanced sling load operations, enabling the rapid delivery and extraction of heavy equipment in combat zones. • Decorations and Awards: B/159th Avn(ASH) and its personnel received numerous unit and individual awards, including the Valorous Unit Award and multiple Distinguished Flying Crosses. • Legacy in Aerial Logistics: The unit’s legacy continues to influence modern Army aviation logistics, with many of its tactics and procedures still in use today. • Post-Vietnam Service: After Vietnam, B/159th Avn(ASH) served in other theaters and was reorganized as part of the 101st Airborne Division (Air Assault), supporting operations through the Cold War era. • Veterans’ Community: The B/159th “Big Windy” Association remains active, preserving the history and camaraderie of those who served, and organizing annual reunions for veterans and their families.