My cousin Ed, an avid private pilot, and his wife were living in the San Francisco Bay Area in the 1970s while I was living in the Sacramento Valley. When my great-grandfather died in early 1973, it was decided that Ed, his wife, my sister and I would fly together in a Cessna 182 from San Jose to Mojave to attend the funeral.
The flight to Mojave was routine. After the funeral, we gathered with our extended family and had a bite to eat. By the time we were done visiting, it was nearing sunset and we needed to fly home. Mojave had no airport control tower so my cousin filed his flight plan over the telephone. He also got the weather forecast for the route back to San Jose, which was said to be good. No icing on small planes had been reported, so we took off.
Icing is hazardous for small planes because it changes the shape of the wings, disrupting the plane’s lift. The wings are designed to produce low pressure on top and high pressure below. Plus, the added weight of ice on the fuselage puts an extra burden on the engine to keep the plane in the air.
Shortly after nightfall, at 9,000 feet over California’s Coast Range mountains, the weather made a drastic change for the worse. We ran into clouds, rain and severe icing. The windshield froze over, visibility dropped to zero, and my cousin had to fly on instruments only. As this was nearly 50 years ago, the plane did not have autopilot, GPS, storm scope, radar altitude, headlights or any other modern avionic equipment used today. Also, the airplane did not have de-icing boots on the wings. Fortunately, it did have a heated propeller.