Experimental Sounding Rocket Association

Where tomorrow's rocket engineers and rocket scientists get their start

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Competition Rules:


     "Basic" Category

  •   Design, build, and launch a rocket with a 10-lb (minimum) payload closest to 10,000 feet above ground level (AGL) (14,320 feet above mean sea level).
  •   Rocket must reach at least 5000 feet and not exceed 12,000 feet AGL to receive points for altitude.


     "Advanced" Category

  •   Design, build, and launch a rocket with a 10-lb (minimum) payload closest to 25,000 feet above ground level (29,320 feet above mean sea level).
  •   Rocket must reach at least 12,500 feet and not exceed 27,000 feet AGL to receive points for altitude.


     Rules common to both Categories:

  •   Rocket must clear the launch rail to qualify in the competition.
  •   All rocket and payload components must be recovered. Maximum points are awarded if components are in re-flyable condition after recovery (less consumables such as propellants or battery charge).        
  •   Maximum points are given for student-designed and -built components, though commercial components are acceptable.
  •   Nontoxic solid, liquid, or hybrid propulsion is acceptable.
  •   Maximum points will be awarded for clear assignments of personnel, use of checklists, communication discipline, and level of preparation/readiness for launch.
  •   Payload design is not specified. Rocket must be designed to reach target altitude independent of any payload function. Bonus points will be awarded based on Judges' assessment of payload functionality and innovation.
  •   A commercial altimeter must be flown to verify peak altitude. A judge will accompany the ground recovery team to verify the peak altitude reported by the altimeter. The altitude must be verified within two hours from the time the team is released to recover the rocket (see note below).
  •   A technical paper, no longer than 12 pages, describing the rocket design must be submitted to paul.mueller.iii@gmail.com by May 26, 2010, 5:00 PM MDT. Papers from the 4th IREC can be found here for reference.
  •   A 25-minute oral presentation with 5 minutes for questions will be given at the Competition. All participants are required to attend all presentations in their Category (Basic or Advanced). Presentations from the 4th IREC can be found here for reference.
  •   A safety plan identifying potential hazards, risk assessment, and mitigating procedures must be submitted to paul.mueller.iii@gmail.com by May 26, 2010, 5:00 PM MDT.

International Traffic in Arms Regulations (ITAR)
Attendees are reminded that some topics discussed in the papers and presentations could be controlled by the International Traffic in Arms Regulations (ITAR). US Nationals, which are US Citizens and Green Card Holders, are responsible for ensuring that technical data they include in their papers and presentations is not export restricted by the ITAR. Non-US Nationals are likewise responsible for ensuring that they do not disclose ITAR export restricted information to other non-US Nationals in attendance.


Note: Teams are responsible for finding their rockets within 2 hours of being released to look for it. ESRA is currently working with the Bridgerland Amateur Radio Club (BARC) of Logan, Utah, to have them place small transmitters on the rockets to help locate the rockets after they have landed. BARC has built some small transmitters to place on the teams' rockets, and they will use their radio finding equipment to track the rockets during descent and locate them after they have reached the ground. Teams who elect to use this free service will be asked to pay a $75 deposit to cover the cost of the transmitter if it is not returned to BARC in working condition after the flight. Also, teams are still responsible for finding their rockets; BARC cannot be held responsible for loss of points, etc., if the rocket cannot be found within the 2-hour window. To use the transmitter, the rocket must have a cavity that is not surrounded by metal or carbon fiber composite. The dimensions of the transmitter are on the drawing here and a photo of the "guts" is below:


Rocket finding transmitter

For the judging sheet, click here.