Neelam Patel David Wade Brian Reyes TARC ALPHA TEAM PRESENTS: BLACK & YELLOW

 Problem Statement  Team Roles and Responsibilities  Timeline  Background  Project Scope  Research  Exploring Possibilities  Design Solution  Construction Phase  Demonstration of Prototype  Testing Phase  Refinements  Lessons Learned  Conclusion TABLE OF CONTENTS

The Team America Rocketry Challenge requires us to design, build, and fly a rocket that can carry an egg at least 750 feet into the air within the duration of 40 to 45 seconds and land it safely using a specifically sized parachute. PROBLEM STATEMENT

TEAM ROLES AND RESPONSIBILITIES David Wade Leader Neelam Patel Scribe Robert Silva Facilitator Brian Reyes Timekeeper

Team Role Team Member Responsibilities Leader David Wade  Responsible for keeping group on track  Review work done by team members  Keep track of day-to-day activities  Resolve conflict  Provide nourishment Scribe Neelam Patel  Write in project notebook  Revise documents created by facilitator  Check group website and daily for updates Facilitator Robert Silva  Create documents for project portfolio  Keep in contact with members to determine status of project  Be a good listener for the group during discussions Timekeeper Brian Reyes  Create timeline with help of group  Fills in planned/ actual dates into timeline  Ensures group follows timeline  Enforces deadlines set by group  Fill in planned/actual chart daily TEAM ROLES AND RESPONSIBILITIES

Planned DatesActual Dates Description 11/17- 12/10 “Formation” Stage and Researching 12/7- 12/2012/10- 12/22Exploring possibilities and final solution selection 12/21- 1/1212/16- 2/28Project specs and CAD 1/15- 1/311/18- 3/20Construction (planning, shopping, building) 1/27- 3/11/19- 4/3Create testing procedure and test rocket 2/10- 2/104/3- 4/3Qualification Flight with NAR 3/2- 4/44/3- 5/2Refine Design, Re-test, and Re-evaluate 4/5- 5/64/22- 5/5Final Presentation Preparation TIMELINE

 Largest rocket contest in world  Designed to encourage students to study math and science and to pursue a career in aeronautic  Sponsored by Aerospace Industries Association & National Association of Rocketry  Several corporate, educational, and government partners  National Association of Rocketry (NAR)  GE  Boeing  IBM  Provide future employees BACKGROUND

 Adhere to TARC guidelines  750 Feet Launch  Airborne for seconds  Safe Landing  Rocket Weighs max 1000g  Powered by motors with ≥ 62.5g of propellant each (No more than 125g combined)  Parachute (15 in diameter) sole recovery device  Egg weight between 57-63g (45 mm diameter) SCOPE

 Competition date: May 14 th  Duration of project: 100+ hours  Resources  Calculus Textbook  Internet  Mrs. Brandner  Mr. Pritchard SCOPE

 Approximate Budget: $500  Entrance Fee: $105  Useable Stores:  Online Web Stores  Hobby Lobby  Deliverables  Technical report  Engineering Notebook  PowerPoint  Prototype SCOPE

RESEARCH

Pros(+)Cons(-) Payload system presentNot enough dimensioning Feasible recovery systemEgg compartment too complex Egg safely storedNo launch lugs Shows connections between body tubeDoes not show how altimeter is attached All criteria metNo specific engine model AerodynamicNose cone oddly shaped DAVID’S SOLUTION

Pros (+)Cons (-) Appropriate heightFins are too big/ no dimensioning Accurate dimensionsNo payload system indicated Proper Nose Cone Shape No connecting system from top and bottom sections of rocket Possible Choice for Recovery System Does not show how egg will be stored safely Appropriate amount of launch lugs Does not show how altimeter will be attached Ease of constructionFin shape is inappropriate for the large rocket BRIAN’S SKETCH

Pros (+)Cons (-) Well dimensionedFins bizarrely shaped Labeled rocket partsEgg capsule not attached to rocket Proper Nose Cone ShapeNot enough launch lugs Criteria metAltimeter placement not feasible AerodynamicParachute is complex Ease of constructionRecovery system unfeasible NEELAM’S SKETCH

Pros (+)Cons (-) Good recovery systemUnnecessary extra shock cords Accurate dimensionsOnly one separation Ease of constructionMissing dimensions Reasonable fin choiceParts are unlabeled / parts missing Shows connection of separate partsConfusion of placement of parts Reasonable place for egg capsuleNo motor ROBERT’S SKETCH

FIN SHAPE SELECTION

 Simulate test flights  Testing different engines  C11-3  D12-3  E9-6  F20-6  E9-6  Height: ft.  Flight Duration: seconds ROCKSIM

MOTOR SELECTION

Specifications AlternativesMaterialAppearance Easy Launch Prep InexpensiveSafetyAccuracyDurabilityReliabilityTotal Design 1 (David) Design 2 (Neelam) Design 3 (Brian) Design 4 (Robert) SELECT AN APPROACH Rating Scale 1- Does not meet expectations 2- Meets expectations 3- Exceeds Expectations

FINAL SKETCH

DESIGN SOLUTION

FINAL SOLUTION (EGG CAPSULE) Foam Nose Cone Balsa Donut Padding Egg Body Tube

PART PART DESCRIPTIONQUANTITYUNIT COSTTOTAL COST Body Tube 18” length by 1 5/8” diameter, pack of 6 1 $12.91/pack $12.91 Motor Estes, single-stage, E9 – 6, pack of 3 2 $19.99/pack $39.98 Motor Estes, single-stage, D12 – 3, pack of 3 1 $14.99/pack $14.99 Motor Coupler 4” length by 1” diameter 1 $1.80/pack $1.80 Nose Cone/Egg Capsule Black, cone shaped plastic, 8.2” length 2.32” diameter 1 $14.57/unit $14.57 AltimeterPerfectflite ALT15k/WD1$55.00/unit$55.00 Parachute15” round nylon cloth1$7.99/unit$7.99 Shock CordRubber, ¼” thick x 36” length1$0.36/foot$1.08 FinsBalsawood board 1/10” thick, 4” x 12”2$3.50/board$7.00 Foam Egg-shaped, 2.12” length, 3.07” diameter, pack of 4 1$2.77/pack$2.77 Balsawood2” x 2” x 12”1$3.99/board$3.99 Basswood3/16” x 4” x 24”1$3.49/board$3.49 Eyescrew Length 0.78”, inside diameter 0.19”, outside diameter 0.4”, thread length 0.28” 1Already owned- Engine Hook0.02” thick, 4.22” length, pack of 21$1.22/pack$1.22 Styrofoam6” diameter x 1” thick1$1.75/wheel$1.75 Recovery wadding75 sheets of fire proof recovery wadding1$4.99/pack$4.99 Yellow Spray PaintRust-Oleum Specialty 11 oz. Yellow Fluorescent2$4.98/can$9.96 Black Spray Paint Rust-Oleum 12 oz. Gloss Black Universal Spray Paint 1$6.50/can$6.50 Painter’s Tape ScotchBlue 1 in. x 180 ft. for Delicate Surfaces 1$5.87/roll$5.87 TOTAL COST $ BILL OF MATERIAL

 Design Changes  Existing parts BUILD PROCESS

CONSTRUCTION Egg payload section Altimeter section Engine Mount Fins Shock Cord/Parachute

PROTOTYPE ASSEMBLY

PROTOTYPE PARTS

ALTIMETER ASSEMBLY

ENGINE MOUNT ASSEMBLY

EXPLODED VIEW

CALCULATIONS Height

 Check if rocket meets TARC Guidelines  Single Stage rocket  Approved Motor  Engine Weight  Parachute  Altimeter  Pass/Fail Result  Pass= Meets guidelines  Fail= Does not meet guidelines QUALIFICATIONS

 Randomly Dropping Egg Capsule  5 from balcony  5 from test flights  Graded based on scale 1- No Damage 2-Slightly Cracked 3-Cracks take up over 50% of eggs, No oozing 4-Cracks take up over 50% of egg, Oozing present 5-Completely Smashed  Any score above 2= fail SAFETY

 Test rocket if operational  Rocket can launch  Recovery System Activates  Weight Chamber  Removable altimeter  No parts fall off  Pass/Fail Result  Pass= All aspects function  Fail= one or more aspects fail to function FUNCTIONALITY

 Launch rocket for air time  Start stopwatch the moment rocket launches  End when rocket touches the ground  Average all trials  Pass/fail criteria FLIGHT DURATION Desired Range (pass) Undesired Range (Fail)

 Launch rocket for height distance measure  Collect altimeter readings  Average all trials for final height  Pass/fail criteria ALTITUDE <700 Ft.<800 Ft. Desired Range

 Assessment of altimeter’s functionality  Manually change air pressure  Listen for a reading  Pass= reports change in air pressure  Fail= no report or no new report ALTIMETER

 All qualifications were met QUALIFICATION TEST Qualifications of the Rocket CriteriaPass Fail Single Stage RocketX Approved MotorX Engine WeightX Complete Rocket WeightX ParachuteX AltimeterX

 Initially, problems with recovery system and falling parts  After adjustments the rocket is functional for last two launches. FUNCTIONALITY TEST Functionality of Rocket Trial 1Trial 2Trial 3Trial 4Trial 5 PassFailPassFailPassFailPassFailPassFail Recovery System X X XX X LaunchX X X X X Variable weight chamber X Removable Altimeter N/A X X X X No Parts Falling Off X X X XX OverallX X XX X

 Functioned satisfactorily 60% of the time FUNCTIONALITY TEST

 Some cracking  Adjustments made SAFETY TEST Safety of Rocket Trial 1Trial 2Trial 3Trial 4Trial 5Trail 6Trail 7Trail 8Trail 9Trail 10MeanMedian Conditio n of the Egg Rating Scale 1- No Damage 2-Slightly Cracked 3-Cracks take up over 50% of eggs, No oozing 4-Cracks take up over 50% of egg, Oozing present 5-Completely Smashed

 Flights averaged around 20 seconds FLIGHT DURATION TEST Flight Duration of Rocket Trial 1Trial 2Trial 3Trial 4Trial 5MeanMedian Flight Duration 18 sec15 sec23 sec21 sec25 sec20.4 sec23 sec

 Altitude averaged around 400 ft. ALTITUDE TEST Altitude Trial 1Trial 2Trial 3Trial 4Trial 5Mean Altituden/a

 Altimeter is functional and gives readings ALTIMETER TEST Altimeter Trial 1Trial 2Trial 3Trial 4Trial 5 PassFailPassFailPassFailPassFailPassFail X X X X X

FLIGHT #1 (PROTOTYPE #1)

 Slight damage noticed to body tube directly beneath egg capsule  Added duct tape to reinforce REFINEMENTS

FLIGHT #2 (PROTOTYPE #2)

 Trimmed egg capsule and body tube  Altimeter mount shorter  Secured engine mount with lots of glue REFINEMENTS

FLIGHT #4 (PROTOTYPE #3)

 Not much changed  Painted  Damage repairs to fin FINAL PROTOTYPE

 Math & Science principles of rockets  Importance of model launches  Earlier Testing to account for error  Time Management was better LESSONS LEARNED

 Refined Design  Average Height: 400 ft  Functionality Success: 60%  Fail TARC qualification flight  Stronger Motor CONCLUSION

THANK YOU FOR YOUR TIME