Peter VanderKley, Trevor Arrasmith, Ty Bailey, Cameron Coupe, Sam Frakes, Brandon Harris, Carolyn Mason, Soo Park UP, UP, AND AWAY! CONCEPTUAL DESIGN REVIEW

MISSION OVERVIEW Mission Statement: Our mission is to create a small-scale version of a Balloon Satellite-based cloud seeding system. We will test the dispersal method in order to determine its reliability and effectiveness in the extreme conditions that the Balloon satellite will go through.

WHAT WE EXPECT TO DISCOVER Cloud seeding utilizes the properties of clouds and precipitation to artificially influence the weather. Precipitation occurs from condensation - Cloud seeding introduces particles to condensate upon - Most commonly silver iodide Precipitation also occurs from temperature changes - Cloud seeding occasionally cools the air Often used in droughts - Also used agriculturally, recreationally Sometimes used to alleviate cloud cover - Beijing Olympics

WHAT WE PLAN TO DISCOVER We will disperse 100 grams of salt 40 times during the flight using funnels with a servo, and we plan to discover that our method will be proven effective through the GoPro footages. With the data that we collect, we also plan to prove that our method of cloud seeding is more efficient, which could reveal an untapped source of water.

WHY WE PROPOSE THIS EXPERIMENT Although cloud seeding is not well known, it is well practiced around the world such as China. Although these attempts have been at sometimes unsuccessful, with further research, we believe that cloud seeding can have a long-lasting and global impact. If cloud seeding could be done efficiently, it could alleviate droughts or benefit those areas in need of more precipitation.

C UBESAT D ESIGN Anemometer and Frame (Shown on next page)

8 cm 3mm 6mm 2.5 cm 6.9 cm 5 cm *We are only using one Arduino for our mission; the other may be used for testing or backup, but is not crucial.

Servos Power HOBO SD MemoryCamera HeaterArduino SD MemoryGo Pro AnemometerSD MemoryPower F UNCTIONAL B LOCK D IAGRAM

TESTING Design structure with WHIP test and DROP test Basic Mechanical test of servos and programming Calibration of wind speed fan Dry ice test: -Make sure able to dispense -Test fan at sub temperatures

SCHEDULE Design Complete: 09/27 Proposal Due: 09/28 Conceptual Design Review: 10/02 Authority to Proceed: 10/05 All Hardware Acquired: 10/10 Basic Test of Hardware: 10/17 Pre-Review: 10/18 Begin Structure Build: 10/20 Begin Electronics Build: 10/20 Finish Structure Build: 10/28 Whip, Stair, and Drop Test: 10/28 Finish Electronics/System testing: 11/3 Dry Ice Test: 11/4 Trouble Shoot: 11/10-11/11 Demo Mission Test: 11/13 Start Compilation for Final Report: 11/15-11/27 Launch Readiness Review: 11/27 Last minute Emergency Fixes: 11/28-11/29 Final BallonSat Weigh-in: 11/30 Launch: 12/01

GANTT CHART

TEAM ORGANIZATION Project Manager (Cameron) Structures (Sam, Brandon, Peter) Design Illustration (Trevor) Electrical (Carolyn, Cameron, Sam) Science Documentation (Trevor, Brandon) Programming (Ty, Soo, Peter)

BUDGET Cost Budget ItemQuantityCost Place of Purchase 9v batteries10$21Walmart HS 430BH Servo 2$28ServoCity.com Aluminum Bare Sheet 12” by 12” by 0.249” 2$44.52 OnlineMetals.co m Tin Funnels 2$10McMaster.com Sodium Chloride Powder 500 grams$40 ArtChemicals.co m Dry Ice 15lbs$16King Soopers Mathmos Wind Light 1$19Lamplust.com GoPro100Donated

WEIGHT BUDGET ItemQuantityWeight 9v Batteries3114g Aluminum Plates4150g Servos291g Sodium Chloride100g Tin Funnels250g Mathmos Wind Light110g GoPro1150g Cannon Camera1130g HOBO Data Logger130g Heater1100g Foam Core and Structure 1200g Total1125g

CONCERNS Procurement of NaCl salt (2 to 5 microns) Weight (GoPro, funnel, batteries, etc.) Mechanism failure (jamming, clogging, etc.) Stability of funnel Power failure

SOURCES 1. "Clouds and Precipitation." 2. "Does cloud seeding work?" china-snow 3. "Weather Modification Services." 4. "Why won't the UK make the sun shine for the Olympics"