The Kansas Organization for Spacemodeling (KOSMO) is a group of families and individuals in Kansas that have a common interest in model rocketry. KOSMO is a chartered Section of the National Association of Rocketry (NAR).

Apollo 17 50th Anniversary Night Launch

Posted: November 30, 2022

On Saturday, December 3 from 4:30pm to 6:30pm, KOSMO will be hosting an Apollo 17 50th Anniversarry launch and reenactment at our launch field in Hutchinson at the Kansas State Fairgrounds.

This is a joint effort between the Kansas Organization for Spacemodeling and the St. Louis Rocketry Association.

Model rocket enthusiasts from Kansas and St. Louis welcome the public to enjoy a historic NASA scale model themed launch at 4:45pm, a twilight Saturn/Skylab launch reenactment at 5:30pm, a Kansas Organization for Spacemodeling and St. Louis Rocketry Association launch at 5:45pm, and an Apollo 17 launch reenactment at 6:15pm. The launches are weather dependent and will run if there is no precipitaiton, temperatures above 39 degrees F, and winds under 10mph.

High Power Season is Here

Posted: August 24, 2022

KOSMO typically schedules about three launches each year at our flying field near Ellinwood, KS that allows for flying high power rockets. The next two scheduled launches are planned for this field. First is the Final Frontier Fun Fly on Saturday September 10th. That will be followed by Rocket-tober Fest on Saturday, October 8th. There are alternate dates as well if the weather doesn't cooperate. See the Events page for all the details.

At both of these events we will have an FAA waiver good to 10,000 ft above ground level. That means any high power rocket can fly up to that altitude. The size of the field generally supports rockets using up to a K motor, though certain circumstances may allow bigger motors as well. To fly high power, you must have the proper NAR or Tripoli certification. We will be flying under NAR rules, so no experimental motors. If you are interested it getting your Level 1 or Level 2 certifications we will have people on site that can help you do that.

Of course, it isn't only about the high power. There will be plenty of the small model rockets and mid-power rockets flown too. Unfortunately, due to dry weather, we are going to have to pay special attention to flying conditions and/or burn bans. Watch for further announcemnts as the launch dates approach.

KRAMO is Here

Posted: June 6, 2022

KRAMO 42 is this coming Saturday and Sunday, June 11-12. This is the KOSMO contest launch as well as a NAR sanctioned National Rocketry Competition (NRC) event. There will be contest flights as well as sport flights. Be aware that while the weather looks quite good for Saturday, there might be wind on Sunday. Final decisions will be made later in the week, but be prepared for the possibility of having to cancel flights on Sunday.

Go to the KRAMO page for more information about the contest events and other details: KRAMO Page.


Posted: April 5, 2022

KOSMO is proud to announce the 42nd annual Kansas Rocket Aero Modeler's Open competition event. This is a club contest launch as well as a NAR sanctioned National Rocketry Competition (NRC) event. It will take place Saturday and Sunday, June 11-12, 2022 at the Kansas State Fair parking lot. This is a two day event full of fun and prizes. Check out the KRAMO Page for all the details.

Spring Fling

Posted: March 7, 2022

The KOSMO flying season is starting this month, with Spring Fling, one of our three high power launches at our launch site near Ellinwood, KS. Unfortunately, this year has been very dry so we are watching the conditions carefully. Watch this page or our Facebook page of updates related to this launch.


Annual Meeting

Sat, Jan 21, 2023
12:00pm - 3:00pm
Steve Hamous Home


Oct-Dec 2022

Check out the latest club newsletter. Click the image above.