October 26, 2012

Next-Gen backup AI avionics

What should an ideal backup avionics system be? Should it be a big, heavy, expensive box filling up the airplane with hordes of possibly chaffing or […]
August 5, 2014

No Data

“Whatever goes wrong with tomorrow’s flight, it WON’T be access to data.” These were among my last words to my wife that evening as I settled […]
February 23, 2015


This adventure is LONG, and maybe boring, but full of information! Many might be bored and should stop now, but anyone interested in experimental aviation construction […]
March 1, 2015

Low Pressure

OK so I was flying West to East in the winter in my Columbia-400 and the Garmin-1000 winds-aloft page showed 100-knot tailwinds up high. (Real high: […]
March 2, 2015

Xavion Flight Test

So a thing I have been doing a lot recently is writing, testing, and tuning Xavion! Xavion is an App that I wrote to do everything […]
March 5, 2015

iPads at 25,000 ft

Apple says that iPads are good to at least 10,000 feet. But how much higher can they go? Xavion can detect and warn of cabin de-pressurization, […]
March 10, 2015

N844X Test Flight

So flying N844X is a different type of flying than I have ever done, and uses a rather large amount of fuel (25 gallons per hour […]
March 23, 2015

Xavion Level-2

Check out Xavion at www.Xavion.com if you do not know what it is. OK done? All right. So all of my Xavion testing so far in […]
March 31, 2015

No Gas

It’s always easy to ADD MORE STUFF to a design. The HARD part is TAKING STUFF AWAY. I remember the first time I saw X-Plane, and […]
April 13, 2015

An Open Letter to Congress

Dear Senator or Congressman: Some years ago, living in a cheap apartment by my local airport, I wrote X-Plane, a flight simulator that has since grown […]