LAS VEGAS, Nevada USA -- AeroTech has identified an issue with RMS Plus™ delay grains supplied as part of the following Blue Thunder reload kits:

• F62T
• G104T
• H238T
• H242T
• I357T

AeroTech has determined that a chemical interaction takes place between the delay grain and the unbagged propellant grain(s) in these kits which can substantially shorten delay times. The actual amount appears to be a function of the amount of time that the reload kit has been sitting on the shelf and the ambient temperature during storage.

One or two months storage appears to be sufficient to cause an unacceptable deviation from the certified delay time (i.e., more than 20%). However, AeroTech has determined that once the delay grain is installed in the rocket motor the delay times remain stable. Note: This effect does not occur with other Blue Thunder reloads.

In order to prevent this interaction, these reloads are now packaged with a non-porous barrier (plastic bag) maintained between the delay grain (s) and all propellant grains. This barrier must be maintained until the grains are installed in the motor.

Flyers with these reload kits manufactured prior to 7/2/01 must replace the existing delay grain with a new delay grain prior to use! These replacements may be obtained through your dealer or direct from AeroTech warranty ( This email address is being protected from spam bots, you need Javascript enabled to view it ).

All AeroTech Easy access dealers have been notified of this issue. They will correct the problem with the affected reload kits in their stock.

If you have any questions regarding this information release, please call Mike Martens at 702-920-2716 or Jason Blatzheim at 702-920-2711.