External link opens in new tab or windowAbout Us


2010 46th Ave. Unit 30

Greeley, CO 80634

Phone: 970-714-1420

After payment you can join and get connected to MIFOS.

First please External link opens in new tab or windowclick here to view and print the installation instructions.

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Now click on the the "Sunface" above and follow the download setup instructions.

Thank you for joining MIFOS.

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Thank you for visiting our website. If you need more information, please navigate to the External link opens in new tab or windowContact Page.

The flight data may be transmitted from any place in the world providing cell phone coverage. Also, the updated flight operations records may be accessed, viewed, and printed via the Internet where there is Wi-Fi or cell phone service. You can be in touch with flight operations from any point on the Globe. 

The data transmittals may be viewed on a laptop, PC, or TV screen at home base. A browse window provides an overview of all flights in progress or completed.  Each selected flight operation file may be viewed in detail on separate screens. The user may toggle between the browse window and the flight leg detail. Operational performance, crew compliance, and the operating profit/loss are instantly available for viewing and reports printed.


Avation Management and Support Software for Air Charter Operators Worldwide

                                  Over 25 Years of Aviation Experience


The previous company, Sundance Air, Inc., a CFR 135 air charter company with on-demand passenger/cargo certification, was owned/operated by Bert and Linda van Toornburg for over twenty-five years. Sundance Air began with a DC-3 cargo/passenger/sky diving operation (movie Red Dawn) and migrated to three 30-passenger Nord-262’s flying casino junkets into Atlantic City, on Canadian fishing trips, Mexican white-wing dove hunting/bass fishing adventures, and with sports teas and movie crews.

Later the company focused on a cargo-only operation with seven Navajo Chieftains and one Beech-99. UPS and Airborne awarded cargo contracts for routes throughout the Rocky Mountain region. Sundance Air’s expansion in 1999 involved adding partners, enabling the company to obtain a UPS contract in Puerto Rico. The four Beech-1900’s covered routes throughout the Islands of the Caribbean and Venezuela. In addition, American Eagle, FedEx ad US Airways depended on Sundance for additional luggage transport and backup. In 2002, UPS awarded Sundance Air, the “Caribbean Carrier of Choice” for on-time reliability. 

Linda and Bert will always be thankful for the pilots, mechanics and office staff for their high standards, work ethic and can-do attitude. The company closed in 2005 due to unresolved issues among partners.

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In order to track flight operations, crew compliance, fuel consumption, and operating profit/loss which was labor- intensive, error- prone and time consuming, the company developed the MIFOS data processing system. The company was freed from these tasks and then focused on improving and optimizing operations, marketing, and sales.

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MIFOS was developed in 1990 and was used to track flight operations. As there  were no cell phones at that time, the crew used a small 30K handheld computer developed by Psion, UK.The device stored the data, connected through modems via phone lines to a home-based computer, and transmitted the data for processing. At   the same time, the system created pilot compliance data,operational performance, and operating profit/loss data. The DO could provide contracted cargo clients with flight and reliability data before it was made available to station managers.


MIFOS (now SkyTrax) has evolved to its current form and improved with input from flight and maintenance staff.

A MIFOS flow chart provides an overview of the entire flight operations data processing system.                  Depending on the complexity of a user’s flight operations, some files may not be utilized but they          are available and optional


Please External link opens in new tab or windowclick here to view and print the MIFOS Flow Chart and Overview and Functionality.

                                                   Pilot entering data into phone||||