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Experimental Sounding Rocket Association

Founded in 2003 as a non-profit, ESRA seeks to further the field of experimental sounding rocketry.
ESRA looks forward to seeing all of the teams joining us for the 2023 Cup June 19th - 24th. 

2023 Spaceport America Cup Team Selection is COMPLETE!
Click here to see if your favorite team will be launching with us!
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Who We Are:

The Experimental Sounding Rocket Association (ESRA) is a non-profit organization founded in 2003 for the purpose of fostering and promoting engineering knowledge and experience in the field of rocketry. ESRA's primary focus is providing safe and exciting opportunities for academic groups to compete in aerospace challenges.

What We Do:

ESRA has operated the Intercollegiate Rocket Engineering Competition (IREC) since 2006. In 2017, ESRA partnered with Spaceport America to expand the IREC into the Spaceport America Cup. Each year, over a hundred university teams from across the USA and around the world compete at Spaceport America’s amazing Vertical Launch Area for the coveted title of Overall Winner. This year is our biggest yet; 150 teams! Each team designs, builds, tests and launches rockets with a payload size of 8.8 pounds and target altitudes of either 10,000 or 30,000 ft. Rockets are typically 4 to 8 inches in diameter and 8 to 20 ft. long. Multistage rockets and all chemical propulsion types (solid, liquid, and hybrid) are allowed. For information about competing in the Spaceport America Cup, please visit http://www.soundingrocket.org/

The IREC has been an annual occurrence since 2006. The competition achieved international status in 2011 – when schools from Canada and Brazil joined – and has continued to grow rapidly ever since. More than 1,500 students attended the 2019 competition, representing over 100+ schools from 6 different continents. 
web login
  • ESRA Home
  • News
  • About ESRA
    • What is IREC?
  • SA Cup/IREC competition
    • SA Cup Home
    • IREC Fees
    • SA Cup Documents & Forms
    • SDL Payload Challenge
    • Video Challenge
    • SA Cup Lodging
    • SA Cup Travel
  • Events
    • 2023 SA Cup
    • 2022 SA Cup - 15TH ANNIVERSARY
    • 2021 Virtual SA Cup
    • 2020 SA Cup
    • 2019 SA Cup
    • 2018 SA Cup
    • 2017 SA Cup
    • Past IREC Events >
      • 2016 IREC
      • 2015 IREC - 10th Anniversary
      • 2014 IREC
      • 2013 IREC
      • 2012 IREC
      • 2011 IREC
      • 2010 IREC - 5th Anniversary
  • Contact Us
    • Donate
    • Sponsors
    • Rocket Vendors
    • Sponsor a Challenge
    • Volunteer