Visit our Colorado State Extension office for more news, tools and resources.

Close Icon
We are here to bring you research and resources that help you in your everyday life at home and in the community. How can we help you?

4-H Model Rocketry   arrow

4-H Model Rocketry Project

Learn how to design, build, or demonstrate flying or non-flying model rockets.

Tip Sheet


All project manuals are received through the Larimer County 4-H Extension office. These will be distributed to 4-H members through their organizational leaders (club leaders) after enrollment is complete. For more information on enrollment visit Join 4-H (opens in new tab)

E-log / Record Book

4 -H Record Books are also called e-Records. Each project has its own record book that members are required to complete each year. The links to e-Records in the specific project areas are below. Record books are turned in at Interview Judging before our County Fair. In June, you will need to schedule an interview for each of your project areas and bring your record book with you to Interview Judging the week of the Larimer County 4-H Fair.

We have more information about how to fill out your record books here (link opens in a new tab).

Policies and Rules

  • Updated information coming soon

Events and Opportunities

Larimer County Workshops:

We have some great workshops coming up for our Model Rocketry members to develop and practice their skills! 

Those who register will be emailed workshop details in advance of each workshop.

If you have questions about the project, please feel free to contact your Key Leader, Ryan Gebhardt (

Build & Fly Workshop

April 17th, 2022
9am – 3pm
Berthoud Room, McKee 4-H Building

Sign-up Here

Open Launch Workshop

May 14th, 2022
9am – 12pm
Grassy Field near parking lot AA, The Ranch

Sign-up Here

Practice Fly Day

Final practice before July 30th Fly Day Contest at County Fair
June 11th
9am – 12pm
Grassy Field near parking lot AA, The Ranch

Sign-up Here

Model Rocketry Launch Day Extravaganza

Join us for a fun filled day of model rocketry!

View a pdf of the flyer here (link opens in a new tab)

  • Bring your model rocket to launch it before fair
  • Ask questions about ways to improve your rocket before fair
  • Get help with the project record book
  • If you do not have a model rocket, no worries! Come launch a pre-built rocket!

When: July 9th at 7:00 A.M.
Where: Arapahoe County Fairgrounds Rodeo Arena

Register here by July 1st (link opens in a new tab)

Maximum of 100 participants

If you have questions, contact:

  • Adam Fricke:
  • Shaylen Florez:
  • Katie Seelhoff: katie.seelhoff@admin


Temporary Office Closure

Our office is closed Monday, February 21st, 2022.