My ekomS ekiN (Nike Smoke in reverse colors). Sorta flying on a CTI K740 C-star. About 300 feet up the thrust ring on our adapter gave up, and the motor slid about a foot up into the airframe, wrecking the lower centering ring and burning up about half my motor tube. Should be a fairly simple fix! The altimeters fired as they should, so everything else was recovered safely.