1. AAE 450 Spring 2008 Nicole Bryan 3.20.08 Avionics Final Presentation Slides 1

2. AAE 450 Spring 2008 Power Budget Avionics 2 Vehicle Flight TimeBalloon Rise Time Vehicle System % of Operating Power Power (W) Energy Consumption (Wh) Mass (kg) Power (W) Energy Consumption (Wh) Mass (kg) Payload5101.040.011030.000.27 Propulsion35707.250.0700.00 Attitude Control15303.110.0300.00 Communications10202.070.022060.000.55 Command and Data Handling5101.040.011030.000.27 Thermal5101.040.0100.00 Power Management25505.180.051030.000.27 Total10020020.720.1950150.001.36 Safety Factor of 1.530031.080.28752252.05 Assumptions: 200g Payload Case, Silver Zinc Battery, Balloon Launch (3hr rise time, 373 second flight time) Source: Justin Rhodes and Nicole Bryan Total System Power: 200 Watts

3. AAE 450 Spring 2008 Non-Space-Rated Sensors Avionics 3 Sensor TypePart NumberManufacturerUnit Price ThermalTS3-85Cantherm$10.29 Pressure2000260 Measurement Specialties Inc.$104.06 Flow26616 Gems Sensors, Inc.$154.95 ForceFSS1500NSR Honeywell Sensing and Control$46.56

4. AAE 450 Spring 2008 Space-Rated Sensors Avionics 4 Sensor TypePart NumberManufacturer Unit Price ThermalS311-641/04 Honeywell Sensing and Control~$800 PressurePPTR Honeywell Sensing and Control$970.00

5. AAE 450 Spring 2008 Electronic Parts: Component Rating 5 CommercialClass BClass S Commercial RequirementsClass S Requirements Infinite production lot sizeBuilt one at a time No burn-in testingExtended burn-in time (up to 240 hours) No detailed failure analysisExtended failure analysis No life testing1,000 hour life test on every lot No traceabilityTraceable to the raw materials > 1% failure per 1000 hours allowed0.0001% failures per 1000 hours allowed 1 NASA Electronics Parts Assurance Group Avionics Reference: Justin Rhodes

6. References  Wertz, James R., and Wiley J. Larson, eds. Space Mission Analysis and Design, 3 rd ed., Torrance, Kluwer Academic and Microcosm Press, 1999.  “Space Applications.” Honeywell Aerospace [online], 2007. URL: http://www.honeywell.com/sites/aero/Space_Solutions.htmhttp://www.honeywell.com/sites/aero/Space_Solutions.htm  www.Digikey.com AAE 450 Spring 2008 6