Moon with Rocket Explorer Post 1010
Lockheed Martin Exploring Program

Project Home

We are planning to use 24mm motors in the E and F class. To get to the 825ft level we will use AeroTech re-loadable and single use motors. We need to get the ejection at around 7 seconds, but many of the 7 second delays go past 9 seconds. We might want to look into modification holes drilled into the delay element. If the rocket is over 380g (including motor) we will need an F motor.

Possible Motors
Motor Type Loaded
Impulse *
Time *
Rocket Weight
  for 825ft
Cost Comment
E20-4/7W Single Use 49 35.0 1.6 320-360g $14 2 pack
E28-4/7T Reload 55 39.7 1.2 320-380g $17 3 pack
E30-4/7T Single Use 47 34.5 1.2 320-360g $21 3 pack
F24-4/7W Reload 62 47.3 2.1 420-460g $20 3 pack, need to add weight
F30-4/6FJ Single Use 54 47.0 1.5 410-460g $14 May need to add weight
F39-6T Reload 59 49.7 1.3 430-480g $20 3 pack inconsistent delays
F32-4/6T Single Use 64 56.9 1.7 480-530g $11 Most expensive

* According to

Here are the thrust charts from AeroTech.


Assembling an AeroTech reloadable is something we need to learn. You need to follow the instructions closely. Making one error in the assembly may destroy your rocket. One place where we differ with the instructions is at the end. We don't use the red cap to hold the igniter. We use either a rubber band or masking tape.

Here is a cheat-sheet on assembling an AeroTech motor.

Here is a YouTube demonstration of assembling a G motor.

Copyright 2014 Explorer Post 1010
Updated: April 17, 2014