October 2022 by Patrick McMullen
I ordered Estes model rocket engines on sale. They arrived, as expected. What was not expected is that the engines were all 10+ years old, and out of the 15 or so I have tried to launch, only one has actually gone successfully. Some completely destroying my son's model rockets when the explode inside the rocket.I emailed Kelvin with pictures and details about the date stamp, and their response was that Estes engines do not have a shelf life. However, I contacted Estes and that is completely dependent on storage conditions, and older engines definitely run more risk of improper storage conditions causing issues.All said and done, I was then ignored, and I am out over $60 for "on sale" engines that are unusable.I will not order from Kelvin again, now knowing they do not back their product, or care about their customers (even when it is a child that's devastated from their projects exploding because of their lack of concern).