Weather

Every year structural icing claims a small but steady number of airplanes. Many of the accidents are on approach in clear air-after the airplane has already collected a load of ice. We look at it afterwards and wonder-the airplane had been doing fine-why did it crash well after it escaped from icing conditions?

Next to poor visibility and low ceilings, ice is one of winters most common weather hazards. A recent study of icing accidents showed that 71 percent of the pilots were instrument rated, averaged 2000 hours, and over half of the flights received a proper icing forecast. This strongly suggests that ice is not well understood or is ignored.

Why is it when youre trying to do something good, the weather always turns bad? Todays mission is a Patient Airlift Services (PALS) flight from Montpelier, Vermont to Boston, Massachusetts. Your quick hop from your home base in Burlington, Vermont already gave you a decent instrument warm-up.

Fall conjures memories of bright blue skies, cool mornings and generally good daytime flying. But in aviation, looks can be deceiving. New air masses are on the move, the jet stream begins to flex its muscle over much of the United States, fronts are marching southward, and theres likely a tropical storm in the Caribbean or the Gulf. How does this affect your flying and how can you avoid an unplanned turn of events?

Pilots want ways to mitigate bad weather. The Coded Departure Route (CDR) is one of the least-known such tools in GA, although its been available since 2007. The AIM tells us, CDRs provide air traffic control a rapid means to reroute departing aircraft when the filed route is constrained by either weather or congestion. So, if youd rather not wait, a CDR might be for you.

The main article covers a lot of things to consider for your various briefings. Here, though, is a view of the items you might want to brief for each phase of your flight.

Preflight weather planning has long consisted of calling an FAA Flight Service Station. Years ago, you might have even visited one. But, using the Internet, you can now draw on the same resources that meteorologists use. While the 2000s brought weather data to the cockpit, were now getting some Internet tools to the cockpit via dedicated datalink. Although we cant yet cheaply surf the web at cruise, we connect to the Internet at the FBO, on the ramp and in the plane on the ground, using phones and tablets with WiFi and cellular data.

Remember that web sites outside the FAA and NWS domains should be considered supplementary tools to be used in combination with a weather briefing through official sources.

Last months clinic began a detailed look at the reports we are required to give ATC or FSS during an IFR flight. Specifically, we began looking at the reports other than the position reports required by 14 CFR 91.183(a), which well cover separately. The remaining reports come from three sources: 14 CFR 91.183 (paragraphs b and c), 14 CFR 91.187, and AIM 5-3-3.

When it comes to avoiding structural icing, the enhanced infrared satellite image ( Read More »