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--- projects:atlas [2008/03/26 12:53] – jcoxon
+++ projects:atlas [2008/07/19 23:33] (current) – external edit 127.0.0.1
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 ====== Atlas ======
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 Inspired by the work of the UTARC team and their near trans-atlantic crossing with SNOX IV the aim of Atlas is to be a co-operative attempt to break the Amateur Highest GPS Reported Maximum Altitude with a balloon which at present stands at 120,522ft (36744m).
-While in the early planning stages the present plan is to put together an exceedingly light payload and use a dual  balloon system to lift the payload to up to an altitude of 130,000ft. Launching from EARs it will be necessary to carefully monitor the weather to chose a day when there is little to no wind (similar to the FHALP-2 launch) which will allow a slow ascent rate without the risk of landing in the sea.
+While in the early planning stages the present plan is to put together an exceedingly light payload and use a dual  balloon system to lift the payload to up to an altitude of 130,000ft. Launching from EARS it will be necessary to carefully monitor the weather to chose a day when there is little to no wind (similar to the FHALP-2 launch) which will allow a slow ascent rate without the risk of landing in the sea.
 The project is open to everyone who is involved in UKHAS, if you want to be involved get in touch either by email  jacoxon@googlemail.com or join in discussions on #highaltitude on irc.freenode.net .
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   * Parachute
     * Drogue? dual parachute system?
-    * 18" thin mil ripstop nylon chute (24g)
+    * 18" thin mil ripstop nylon chute (12g) - or 15" may do (8g)
   * Payload (150g)
-    * Flight Computer (18km+ GPS, GSM and Radio (RTTY 434mHz))
+    * Badger1 Flight Computer (18km+ GPS, GSM and Radio (RTTY 434mHz))
     * <del>Secondary radio beacon (on separate power supply)</del>
     * Camera: Stripped down Premier DS-3080S (used on Peg I) aquired on ebay (requires 2 x AA lithiums and takes SD cards)
     * Cutdown - (pyro cutdown 2g)
-    * Powersupply - LiPo 2000mAh-
+    * Powersupply - tbd
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 ===== Launches =====
   * Atlas 1 - May 2008
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   * Flight Computer design - //edmoore & fnoble//
   * Flight software - //edmoore & fnoble//
-  * Camera - //rocketboy//
+  * Camera - obtain camera and weight reduce - provide flight computer interfaces (Power/Shutter) //rocketboy//
-  * Parachute - //rocketboy//
+  * Radio TX (434MHz,300Baud,200Hz shift,8bit,ASCII,RTTY) - interface logic level RS232 at 9600 baud // rocketboy //
-  * Cutdowns - //rocketboy//
+  * Parachute - obtain and modify for standard bottle top operation //rocketboy//
+  * Cutdowns - make //rocketboy//
+  * Cutdown circuit - develop lightweight cutdown circuit //rocketboy//
   * Payload construction - //everyone//
   * Administration + Weather - //jcoxon//
-  * Ground software - //jcoxon//
+  * Ground software (inc ASCII cocoamodem) - //jcoxon//
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   * [[projects:atlas:downlink|Atlas Downlink Software]]
+  * [[projects:atlas:hardware|Atlas Hardware]]
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   * Steve Randall (rocketboy)
   * Fergus Noble (fnoble)
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   * Li-Po batteries about 140mWh/g
   * A123 rechargable lithiums 110mWh/g
+  * GU container (ID 110mm x 110mm x 110mm - ID 90mm x 90m x 86mm) - 24g