The Camair Twin Navion was a civil utility aircraft produced in the United States in the 1950s by converting single-engine Ryan Navions to twin-engine power. It had been one of two programs to improve the performance of the otherwise-pleasing Navion that was generally considered to be underpowered. The other program had resulted in the TEMCO-Riley D-16A Twin Navion. The Twin Navion design had been undertaken by the White brothers of White Engineering in San Antonio, Texas. They replaced the Navion's engine with a baggage compartment, mounted two engines within new nacelles attached to the wing leading edges, fitted the aircraft with a new tail fin made of fiberglass, and added tip tanks made from recycled WWII napalm canisters. Designated the WE-1, the prototype and the rights were sold to