The article is addressed to the analysis of the trajectory parameters and videos obtained during the flight experiment at the launch of meteo-rocket MMP-06 with the purpose to determine major parameters of motion of a round parachute at subsonic speeds in the range of altitudes from 0 to 40 km. The data analysis showed that the trajectory of the parachute represents spiral "stretched"... https://www.roneverhart.com/MagnaFlow-2005-2008-Pontiac-Grand-Prix-Street-Series-Cat-Back-Performance-Exhaust-System/