guster900
07-23-2006, 03:13 PM
Around the 4th of July, my younger brother & I were setting off a large custum rocket we had made. It had 3 Aerotech G-804T engines in it. Before we set it off, we launched about 15 regular small estes type rockets.
We were using a custum made launcher designed by Pratt Hobbies, specifically designed to launch three of these Aerotech engines at once, but this was our first time setting off Aerotech engines.
We followed the directions exactly, putting the ignitors all the way down inside just like it said and the picture showed. We used Aerotech ignitor clips, everything was exactly as the directions said.
When we hit the launch button, all three, almost simultaneously exploded, with a load pop pop pop as all three exploded on the launch pad.
The fuel grain core never even lit. It was like the ejection charges all went off first and shredded the engine casing.
Can someone please help me out and shed some light on what we did wrong, and how to avoid this from happening again? :confused:
We were using a custum made launcher designed by Pratt Hobbies, specifically designed to launch three of these Aerotech engines at once, but this was our first time setting off Aerotech engines.
We followed the directions exactly, putting the ignitors all the way down inside just like it said and the picture showed. We used Aerotech ignitor clips, everything was exactly as the directions said.
When we hit the launch button, all three, almost simultaneously exploded, with a load pop pop pop as all three exploded on the launch pad.
The fuel grain core never even lit. It was like the ejection charges all went off first and shredded the engine casing.
Can someone please help me out and shed some light on what we did wrong, and how to avoid this from happening again? :confused: