The Duncan Download Blog: Business Aviation Advice & Observations

Taking To The Skies for RVSM

Posted by Zack Beyers on Tue, Jul 10, 2018 @ 11:00 AM

When he’s not working as an inspector for the parts manufacturing and fabrication departments, Duncan Aviation’s Randy Dill takes to the skies. 

He has been part of an FAA mandated program called Reduced Vertical Separation Monitoring since 2003. “RVSM”, as it is known, is a process defined as the reduction of vertical space between aircraft from 2,000 to 1,000 feet at flight levels from 29,000 feet up to 41,000 feet. RVSM was implemented as a means to increase airspace capacity and fuel efficient flights.
RVSM Mt. McKinley

Randy embarks on flights around the United States, relaying height monitoring data to the FAA and providing certification to the autopilot systems of different aircraft. Anything that flies between 29,000 and 41,000 feet has to have their auto pilot re-certified every 2 years or 1,000 hours, whichever comes first.

“I’ve completed around 715 flights all around the country since I started,” Randy said. “Most of the time I’ll get a call from someone working at a Duncan Aviation satellite avionics shop, saying they need a customer’s aircraft to go through the process, so I’ll head up to wherever and figure things out with that customer.” This year Randy has already made stops in Denver, D.C., Nashville, and several other cities.


CSSI is the company who supplies Randy with the technology to conduct these in-flight operations. The equipment and program is run by the FAA. A GPS monitoring unit (E2 GMU) is what Randy uses during flights. He puts antennas on the windows and floors of the plane in- flight and tracks the auto pilot at altitude for half an hour. The floor antenna tracks the jet’s transponder. The data from the machine is sent by Dill to CSSI and FAA. The flight is tracked from several centers, while monitoring the altitude and atmospheric conditions.

An iPad is built into the monitoring unit to display the data, including satellite positioning, air speed, and altitude. Randy doesn’t have a problem fitting it in the overhead compartment, but has to have it inspected each time he goes through security.

Bozeman“In all the years I’ve been doing this, only 3 flights have failed,” Randy said. “A Learjet 55 had a hard drive crash and the other two had computer issues with data, so we’ve been pretty accurate and fortunate to have those results.”

Aside from his duties with Duncan Aviation, Randy is an instrument rated pilot along with having a unique and exciting job on Nebraska Cornhusker game days, working as a spotter for the public address announcer at Memorial Stadium in Lincoln, Nebraska.

Tags: RVSM


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