National Helicopter Museum National Helicopter Museum traces the evolution of the rotary wing from early predecessors like the boomerang and Chinese tops to designs by Leonardo da Vinci and George Cayley to early motorized experiments to modern helicopters of today. Igor Sikorsky's first helicopter success in Stratford on September 14, 1939 is documented as well as his subsequent productions. Also displayed are the small gas turbine engines developed locally by Dr. Anselm Franz at Avco Lycoming which power such helicopters as the Bell Helicopter UH-1 Iroquois or "Huey" and the Boeing CH-47 Chinook. Other exhibits include ones on tilt rotor development; current photos
Chinook Jargon Chinook words and phrases in her writing. In Oregon, Chinook Jargon was widely used by Natives, trappers, traders, employees of the Hudson's Bay Company, missionaries, and pioneers who came across the Oregon Trail from the 1830s-1870s. In Portland's first half century (1840s-1890s) there were frequent trade interactions between pioneers and Native Americans. After about 1900, when such daily interactions were less frequent, Jargon was spoken among pioneer families to prove how early they arrived out west. Many Oregonians used Jargon in casual conversation—to add humor, whimsy or emphasis and to exhibit deep knowledge of Oregon's history. Though traditions of speaking