Send me BRIEFINGS from IFR, FREE!

Weekly tips, technique and training from IFR.

Routing Puzzles

Routing Puzzles

In the December 2014 issue, I answered a question from Tim, a reader, regarding filing an IFR flight plan. DUATS’ flight planner computer accepted the flight plan but the FSS planner rejected it. That was disconcerting, so we dug into it. This article will explain what’s happening and I’ll illustrate how different flight planning tools can behave differently with some less common routing elements.

Continue Reading


More Avionics

On The Air: October 2019

 Subscribers OnlyThe ride over was smooth and generally clear on a recent flight, but there were intermittent clouds and bumps at...

Skew-T Revisited

 Subscribers OnlyThe Skew-T log-p diagram, typically just called a “Skew-T,” is an amazing tool for understanding...

Clearing Flags

 Subscribers OnlyIt’s certainly legal to fly through the AIRMET. These are advisories covering large areas. But it behooves you...

Why GPS Doesn’t Work

 Subscribers OnlyDark clouds are looming on the horizon of our otherwise exciting GPS future. With increasing frequency, the military...

Canada’s ADS-B

 Subscribers OnlyJust to make sure you understand what’s up, let’s review. In the U.S., we’ve got excellent radar...

Spotting Traffic

 Subscribers OnlyTCAS II is the most comprehensive form of TCAS, but its range depends on what it is asked to do. Overall pulse...

When Things Go Wrong

 Subscribers OnlyIt should be obvious that we never say the words, “Declare,” “Emergency,” “Mayday,” or...

Readback: October 2019

 Subscribers OnlyFirst, we checked with Garmin and their equipment actually decodes the Morse code identifier rather than rely on GPS...

Briefing: October 2019

 Subscribers OnlyThe Air Force and tech company DZYNE have created an ungainly-looking device that can take off, fly and land an...

The Payoff

 Subscribers OnlyHowever, the FAA’s ADS-B installation date of January 1st, 2020 was nearly a decade away, and he faced a hostile...