Sam SanGregory
Sam SanGregory
  • 49, Male
  • Xenia, OH
  • United States
Share on Facebook Share Twitter

Sam SanGregory's Friends

  • Susan Gavin
  • Jonathan Juhl
  • Jason Krueger

Sam SanGregory's Discussions

Cedarville University completes HALO II launch

Started Apr 5, 2009

 

Sam SanGregory's Page

Gifts Received

Gift

Sam SanGregory has not received any gifts yet

Give Sam SanGregory a Gift

Latest Activity

Profile Icon
Shane DeMeulenaere commented on Sam SanGregory's blog post 'Tree recovery system'
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…
Jul 12, 2010
Profile IconProfile Icon
Sam SanGregory and Susan Gavin are now friends Sep 1, 2009
Profile Icon
Howard Brooks commented on Sam SanGregory's blog post 'Tree recovery system'
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…
Apr 13, 2009
Profile IconProfile Icon
Sam SanGregory and Jonathan Juhl are now friends Apr 9, 2009
Profile Icon
Sam SanGregory replied to Jason Krueger's discussion 'Analyzing HALO Data'
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…
Apr 9, 2009
Profile Icon
Sam SanGregory replied to Jason Krueger's discussion 'Analyzing HALO Data'
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.
Apr 9, 2009
Profile Icon
Sam SanGregory replied to Jason Krueger's discussion 'Analyzing HALO Data'
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…
Apr 9, 2009
Profile Icon

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…See More
Blog post by Sam SanGregory Apr 8, 2009
2 Comments
Profile Icon
Thumbnail
Thumbnail
Photos posted by Sam SanGregory Apr 8, 2009
Profile Icon

Cedarville University completes HALO II launch

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 tops of the trees in a woods about 10 miles east of Greenfield, OH. A very friendly farmer helped us recover our equipment by cutting down two trees in which the pods were entangled.
Discussion posted by Sam SanGregory Apr 5, 2009
0 Comments
Profile Icon
Sam SanGregory is now a member of Near Space Network Mar 23, 2009
Welcome Them!

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

Loading…
  • Add Photos
  • View All

Sam SanGregory's Blog

Sam SanGregory

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

Comment Wall

You need to be a member of Near Space Network to add comments!

Join Near Space Network

  • No comments yet!
 
 
 

© 2012   Created by Jason Krueger.

Badges  |  Report an Issue  |  Terms of Service