CH-47C Chinook

The CH‑47C Chinook, a twin‑engine, tandem‑rotor heavy‑lift helicopter, entered service in 1966 as the first production variant of Boeing Rotorcraft Systems’ iconic Chinook line. Developed from the earlier CH‑47A, the C model incorporated a more powerful Lycoming T55‑L-7 engine, an upgraded transmission, and additional fuel capacity, giving it improved payload and range. Its distinctive dual‑rotor configuration provides unmatched lift capability, allowing the aircraft to transport up to 12,000 lb of cargo internally or externally, sling‑load tanks, artillery, or up to 55 troops in a single sortie. The CH‑47C also introduced reinforced landing gear, a strengthened airframe, and upgraded avionics that enhanced reliability in harsh environments. Throughout the Vietnam War the Chinook proved indispensable for troop insertion, casualty evacuation, and logistical resupply, establishing the platform’s reputation for durability and versatility. Over the decades the design has evolved into modern variants such as the CH‑47F, yet the C’s contributions set the standard for heavy‑lift rotary‑wing operations worldwide. Its enduring legacy underscores the Chinook’s pivotal role in shaping modern military and humanitarian aviation missions. The CH‑47C also saw export to allied nations, and its robust design later formed the basis for civilian firefighting and disaster‑relief variants, further cementing its influence beyond the battlefield.