Angeles Airways, a local helicopter commuter airline, but the deal fell through. Golden West did acquire Catalina Air Lines, a seaplane operator that served Catalina Island off the coast of southern California with the Grumman G-21 Goose. These Grumman amphibious aircraft were operated as Catalina Golden West which was a division of Golden West. Because of California's growth and tourist appeal, Golden West was able to become an interline partner with a number of domestic and international airlines. According to the January 1, 1973 Golden West system timetable, these airlines included Aer Lingus, Aerolíneas Argentinas, Aeroméxico, Air Canada, Air France, Alaska Airlines, Allegheny Airlines, Aloha Airlines, American, Braniff International, Continental Airlines, Delta, Eastern, Finnair, Frontier Airlines, Hawaiian Airlines, Hughes Airwest, Japan Airlines (JAL), Lufthansa, National Airlines, Northeast Airlines, Ozark Air Lines, Pan American World Airways (Pan Am), Piedmont Airlines, Scandinavian Airline System (SAS), Southern Airways, Trans World Airlines (TWA), United Airlines, Western Airlines, Wien Air Alaska and other air carriers. By the early 1980s, Golden West was the largest commuter airline in California operating a high frequency shuttle schedule between LAX and Santa Barbara and San Diego. In 1981, Golden West was the only air carrier flying nonstop between Santa Barbara and LAX with up to fourteen round trip flights a day. Its fleet had grown to include larger aircraft such as the Short 330 and de Havilland Canada DHC-7 Dash 7. The 50-passenger seat Dash 7 was the largest aircraft ever operated by the airline. A huge debt service, among other factors, drove Golden West Airlines out of business in April 1983. In 2000, Pinnacle Air Charter, Inc. acquired the Air Carrier Certificate for Golden West Airlines. It ultimately operated again, under the DBA of Pinnacle Air Charter, and later, Platinum Air Charter, Inc., conducting on-demand air charter and air ambulance operations under FAR Part 135. Its base of operations was located at Pomona's Brackett Field, and conducted flight operations primarily out of San Bernardino International Airport. It suspended operations and closed in 2007. Fleet The Golden West fleet consisted of the following aircraft models and quantities. 4 – Beechcraft Model 99 Airliner 27 – de Havilland Canada DHC-6 Twin Otter 5 – de Havilland Canada DHC-7 Dash 7 1 – Grumman G-21 Goose (amphibious aircraft that were formerly operated by Catalina Air Lines which was acquired by Golden West) 1 − HFB 320 Hansa Jet 5 − Short