Differences

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--- projects:parafoil:one [2007/05/27 16:23] – created jcoxon
+++ projects:parafoil:one [2008/07/19 23:33] (current) – external edit 127.0.0.1
@@ Line 7: / Line 7: @@
-  * Restrung Parafoil Kite (bought off ebay) using design and measurements from [[http://www.eddiem.com/toys/rcplanes/myfoil/myfoil.html|The Black Rainbow]]. As can be seen the parafoil lines are brought up to 2 wooden bars which have servo horns glued on allow it to be attached to the payload.
+  * Restrung Parafoil Kite (bought off ebay) using design and measurements from [[http://www.eddiem.com/toys/rcplanes/myfoil/myfoil.html|The Black Rainbow]]. As can be seen the parafoil lines are brought up to 2 wooden bars which have servo horns glued on allow it to be attached to the payload. Therefore by turning this bars you actually change the parafoil's angle of attack.
 {{projects:parafoil:restrungparafoil.jpeg|}}
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   * Adapted R/C Transmitter so that both sticks were in the vertical plane (as each controls one servo). This was achieved by hacking up the controller and gluing the stick in place.
+  * Test video can be seen [[http://www.pegasushabproject.org.uk/parawing/p1010048.mov|here]]
+==== Testing ====
+  * Drop tests from a tethered balloon. - helium balloon tied normally, through the loop created when you turn the neck back on itself is a carbonfibre rod from which the cutdown device is hung from and also the 2 grounding lines are attached. To attach the payload it was necessary to bring down the balloon by pulling on the ground lines. We changed this set up adding a small ring in the middle of the rod through which we strung a long line which could be used to hoist the cutdown device and payload up speeding up the time between testing.
+{{projects:parafoil:tetheredballoon.jpg|}}
+  * Changed Parafoil to Steve's and instead of adjusting the angle of attack we directly attached most of the lines to the payload and used the servo + bar to control the break lines.
+  * Managed to get some degree of control
+  * Video of a sucess full drop [[http://www.pegasushabproject.org.uk/parawing/P1010052.MOV|here]]
+==== De-brief ====
+  * Brake lines are the best method of controlling the payload
+  * It is actually possible to control the parafoil with 2 servos.