We are the Denver-area chapter of the International Aerobatic Club, a division of the Experimental Aircraft Association. Our members come from all along the Front Range from Ft. Collins to Colorado Springs, as well as from neighboring states. RMAC's goal is safety above all else. We share a love of aerobatic flying, whether for personal enjoyment, the precise demands of competition, or working on the sidelines as judges and support personnel at contests. Our activities fall into three main categories:

  • Competition
  • Recreational flying, including critique and practice days
  • Group meetings and social events

To learn more, click on one of the menu links above. Thanks for visiting!

2011 Ben Lowell Contest Wrap-up

Well this contest is in the books, and a short one it was! We only managed one flight for Primary, Intermediate, and Unlimited. Everything else was weathered out by ceilings that were tantalizingly close to flyable but lifted only briefly. :-( On the upside, many pilots were able to fly for "smooth" patches within the parameters of FAR 91.155 and 91.303.

Congrats to 1st place Sportsman Cody Hale, 1st place Intermediate Sarah Tobin, 1st place Unlimited Bob Freeman, and all the other trophy winners!

Photos from the 2011 Ben Lowell Aerial Confrontation

IAC12's resident photographer extraordinaire, Paul Gordon, shot dozens of photos at the Ben Lowell Aerial Confrontation May 21-22. Despite the "sub-optimal" weather, he captured many stunning images.

Check them out on Paul's Flickr page: http://www.flickr.com/photos/bluedharma/sets/72157626609786187/

Thanks Paul!

Contest Pre-Registration Now Available!

IAC Chapter 12 is now offering on-line pre-registration for the Ben Lowell Aerial Confrontation, May 14-15.


  • Register whenever it's convenient for you
  • Reduces the paperwork for yourself and our volunteer staff
  • Pre-pay via credit card -- optional, and refundable if you don't fly
    • Note: First-time competitors pay nothing!! Just check the box marked 'Student' and put a bogus value under School and Major.
  • Reserve a practice slot -- pre-payment required

Glen Marshman's plane written up in EAA Experimenter Magazine!


Long-time IAC12 member Glen Marshman recently finished building a souped-up Rans S-9 Chaos, for use in aerobatic competition.  A detailed story about the project appears in EAA Experimenter magazine: http://www.eaa.org/experimenter/articles/2011-04_rans.asp

Congrats, Glen!  Can't wait to see your bird in action!

Glen Marshman's Rans S-9 Chaos


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