CEDAR CITY, Utah USA — AeroTech has initiated an exchange program for older nozzles used in the M2400T reload kit.

AeroTech has found that in rare circumstances certain older phenolic nozzles used in the AeroTech M2400T reload kit may fail during operation. The nature of this failure is that a crack will develop during the motor burn that can result in vectored thrust and/or ejection of a portion of the nozzle exit cone. This may cause the rocket to fly in an erratic manner and may also result in damage to the motor's aft closure, casing or even the rocket vehicle.

The nozzles that are suspect in this failure mode have a distinctive machined interior exit cone profile. They are easily distinguishable from the more recent 98mm nozzles which have a molded interior exit cone. The molded exit cone nozzles have a darker, smooth interior surface appearance, and a more shallow entrance angle (120 degrees vs. 90 degrees) in the nozzle's convergent section.

Customers who have machined exit cone M2400T nozzles in their possession are requested to return them to AeroTech or to an authorized dealer at their earliest opportunity. They will be replaced with the newer molded exit cone nozzles at no charge.

AeroTech Consumer Aerospace is a division of RCS Rocket Motor Components, Inc., Cedar City, UT.