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Sam SanGregory
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- Xenia, OH
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Cedarville University completes HALO II launch
Started Apr. 5, 2009
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My team experienced a similar situation, and after seeing your post I began to think about the topic. My solution to the pod orientation issue is to have the loose end of the spool be connected to the balloon train. The pod itself would only have th…
My biggest worry would be the attachment of the spool to the pod to withstand the pulling without adding excessive weight. On both recoveries where we used the EzHang, there were multiple failures of connectors (swivels) or connections the HALO II p…
After playing with the numbers I am suggesting the following for the RATE column.
RATE = (HEX2DEC(U3)-10000)*3.28084 (Units are Ft/min)
Without the 3.28084 multiplier the units would be meters/min.
When I use this equation I get numbers that appe…
PRESSURE ERROR: I noticed a typo in my previous set of equations. The Pressure equation should be divided by 0.267 NOT the 0.287 as I reported.
Using some equations I obtained from a balloon workshop at Taylor U. last summer, I came up with the following equations which can be used in Excel or Open Office to convert most of the data. I couldn't find the CO2 sensor data sheet post and I coul…
After experiencing a balloon stuck in a tree top, I got to consider ways to simplify the recovery process. I saw the blog post using the ez tool (tennis ball and a string) and thought of a new approach that could be explored. Why not have a pod that…
A team from Cedarville University successfully completed a launch and recovery as part of the HALO II project. The launch took place in a park in Eaton, OH (near the Ohio-Indiana boarder). The balloon peaked at around 84,000 feet and landed in the t…
Profile Information
- What educational institution are you with?
- Cedarville University
- Are you a student or professor?
- Professor
- Where did you hear about Near Space Network?
- HALO Project
Sam SanGregory's Photos
Sam SanGregory's Blog
Tree recovery system
After experiencing a balloon stuck in a tree top, I got to consider ways to simplify the recovery process. I saw the blog post using the ez tool (tennis ball and a string) and thought of a new approach that could be explored. Why not have a pod that contains a tennis ball and a spool of string (say 100 feet for good measure). If upon recovery the balloon is found to be in a tree, issue an electronic command to the pod to deploy the tennis ball. The ball, dropping straight to earth, would have a… Continue
Posted on April 8, 2009 at 9:48am — 2 Comments
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