XAVIEN: Single and Dual stage rocket timers for sale.
( Click on LINK above. )
Project Beginnings:
A co-worker of mine wanted a small timer that ranged from 1s to 15s depending on what the user selected. They wanted to use a set of 4 dip switches to select the time. Needed to be as small as possible (weight being very critical) and run off of a 9V battery. Needed 2 failsafes to prevent accidental ignition of the second stage of the rocket. The following information is the end product of those requirements. You can buy IMPROVED single and dual stage rocket timers from XAVIEN .
- The
schematic is in .PDF format here.
- The firmware
is available here.
- Firmware
flowchart is in .PDF here.
Model Rocketry Links:
Tutorials:
Beginner’s Guide to Model
Rockets (NASA GRC)
TRIPOLI (FAA Documentation)
Randy Culp's Rocket Equations Page
Parts Suppliers:
ESTES – Great
for easily available supplies.
Apogee Components – Fantastic kits and motors.
Rockets 2 GO – Great kits.
The great thing about this project was that it allowed me a reason to buy a few rockets to experiment with.
I purchased 3 rockets and have flown them each about 10 times. All 3 rockets are from ESTES since their engines are the easiest to get at the local hobby shop. Of course my son Xavier loves launching them. The first time he did, that was it, now he thinks he is a “Captain” because he launches rockets! Kids are great!
The blue rocket (“TIDALWAVE”) has a maximum altitude of
600FT. using an ESTES “C6-5” engine. The red and white rocket (“HEATSEEKER”)
has a maximum altitude of 800FT. using an ESTES “C6-7” engine. The small
rockets (“X-RAY”) has a maximum altitude of 500FT. using an ESTES “A10-3T”
engine
Here is a picture of the “Captain” before
launch.
Here is a picture of the “Captain” after
launch.
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Web Site last updated:08/28/02
Page operating since: 08/28/02
If you have any questions please contact me at:
steevn.geo@yahoo.com