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Systems Tool Kit & StellarXplorers

STK is a software tool that allows engineers and scientists to design and develop complex dynamic simulations of real-world problems, especially those relating to satellites, spacecraft, and aircraft. Through CAP's partnership with Analytical Graphics, the makers of STK, cadets are invited to test-fly this state-of-the-art technology.

STK is a fantastic aerospace/STEM activity for cadets, students, and adults!


DID YOU KNOW that the Air Force Association (AFA) has an exciting and challenging national competition that involves the use of STK?  StellarXplorers is a dynamic program and competition available to ANY high school team from schools, youth organizations, JROTC, OR CAP!  The program leads to a national finals competition held each spring in CO Springs.

*** STLX VI (2020) competition is a wrap!  CAP's Oregon Wing Aurora Composite Squadron team won 2nd place in the national competition.  See national winners story HERE and pre-finals story HERE.  

Looking ahead:

  • STLX VII (2021) competition has begun. CAP has 22 of the 127 STLX teams.  See 2021 STLX Competition Schedule HERE.  Find out all details at! 

To find out more about how the STLX program can help CAP squadrons, click the STLX Info Page for CAP.

  • There is a $200 registration fee, even for CAP teams.

  • See CAP teams having made it to past STLX national finals, below.

Want to get started learning about STK? See info below!

                   INTRODUCTORY VIDEO!

How to Obtain a Free STK Software License:



STK Downloading Instructions - 2018 Update

STK Curriculum
STK PowerPoint - Orbital Mechanics
Lesson plans, slides, activity scenarios, etc.  (6.6 mb Zip file)

Past CAP teams in the national STLX finals:

STLX V (2019) MN Wing, the Anoka Composite Squadron  See CAP.NEWS article.

STLX IV (2018) OR Wing, the Aurora Composite Squadron.  See CAP.NEWS article.

STLX III (2017) OR Wing, the Aurora Composite Squadron.  See CAP.NEWS article.

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