Transcript Slide 1
Our Mission Statement
Launch a high-power rocket to an altitude of one mile carrying the Operation: Epic Beep payload package. At lift off, the rocket’s payload will begin emitting a series of high volume “beeps” at one third-second intervals. These beeps will cease at apogee. By recording and analyzing the beeps, we will be able to determine velocity, acceleration, and altitude of the rocket throughout the duration of its flight. This data will be compared to computer simulation data and onboard telemetry to determine the accuracy of our measurements.
The “Operation: Epic Beep” Team
Main Criteria for an EPIC launch
1. Successful Motor Ignition and Launch 2. Beep Start at Launch 3. Near Vertical Flight to Apogee 4. Proper Beeper Operation Throughout Flight 5. All Beeps Clearly Recorded for Duration of Flight 6. Proper Operation of Altitude and Temperature Loggers Throughout Flight 7. Proper Rocket Performance Throughout Flight 8. Apogee of Approximately 5,280 Feet 9. Drogue Chute Deployment at Apogee 10. Beeper Cut-Off at Drogue Deployment 11. Main Parachute Deployment at 500 Feet 12. Beeper Restart at Deployment of Main (for tracking) 13. Soft Landing of Rocket 14. Proper Operation of Rocket Hunter Tracking System 15. Recovery of Rocket and Data Logging Systems 16. Data from Beeper Comparable to Loggers and Simulation
Rocket Flight Stability in RockSim Diameter: 2.27” CG: 44.2” CP: 47” Margin 1.22 (Stable)
Motor Selection
Aerotech J-275W-18 54mm Motor Reload Doctor Rocket RMS 54/852 Motor Casing with end closures We used Rocksim to determine our motor size
Launch Guide Data
Launch Guide Length and Angle: 144” at Zero Degrees from Vertical Velocity at Launch Guide Departure: 82 ft/s Launch Guide Cleared: 0.34 Seconds Minimum Velocity for Stable Flight: 44 ft/s Reached at: 42 In.
Parachute Sizes and Descent Rates 18” Nylon 8-Sided Drogue Parachute 58” Rip-Stop Nylon Main Parachute Recovery System Data Drogue Deployed at: 17.2 Seconds at Velocity of 10.8 ft/s Altitude at Deployment: Drogue: 5,257 ft, Main: 500 ft Recovery Speed 19.7 ft/sec.
Test Plans and Procedures
Follows NAR regulations Check for personnel and environmental hazards
Scale Model Flight Test
January 10 th , 2009, 4:00PM Behind Denmark Elementary School on public land Christened “Dark Density” Purpose to test integration of pods, proof of concept, and parabolic microphone
Scale Model Flight Test
58% Scale of Dark Doppler Projected altitude: 2000 Ft.
Weight: 22 oz.
Height: 42” Results: Stable Flight Small degree of weather cocking Soft landing
Challenges Addressed
Synchronization of beepers Volume of Beepers Tracking of rocket with parabolic microphone Triggering Payload Events Parachute’s ability to handle weight of rocket
Sound Output Frequency Spectral Analysis This is the test recording, the lines represent the beeps.
Black Powder Ejection Charges
4F Black Powder (grams) = Compartment Diameter2 (inches) x Compartment Length (inches) x .006
Drogue Powder = 2.175” x 2.175” x 26” x .006 = .74 grams Main Powder = 2.175” x 2.175” x 10.75” x .006 = .31 grams
Dual Deployment Avionics Test
After extensive testing we determined that more powder was needed. Slowly adding more powder in testing we worked up to the final amounts needed.
Powder Amounts Drogue = 1.0g
Main = .5g
Motor Ejection (Drogue) = 1.0g
Payload Integration Feasibility
Main Payload Bay The temperature logger will be securely mounted and enclosed within the payload bay, located below the nosecone of the rocket. Located in the nosecone, our battery pack Porting is constructed for the flow of ambient air into the payload bay.
Altitude tracking will be accomplished via the deployment altimeter in the avionics bay.
Beeper Pods
Two high-volume piezoelectric beepers are mounted on the outside of the airframe directly below the nosecone with the sound ports facing down.
Surrounding the beepers are specially designed, sound-increasing megaphones which will protect the beepers in flight.
Breakdown
36v Battery Pack
Foam Battery Casing (To fit in nosecone) Power hook-up Battery Pack (4 x 9v’s)
Upper Body Tube
Wire Conduit Beeper Pod Wire Conduit Switch Shroud Vent Wire Conduit Beeper Pod
Payload Bay
Temperature Data Logger Magnetic-reed Switch
Beeper Re-Activator
Shroud Micro-Roller Switch Switch Depressor
Safety
Adhere to MSDS standards Follow shop safety Respect dangerous chemicals and abide by instructions Follow instructions on rocket assembly Use proper safety equipment such as: Gloves Safety glasses Masks Ventilation systems
Budget
Rocket Expenses Public Relations Donations Fundraising NASA payment $1800 $600 $2305 $2200 Pending...
We are confident at this point of the project, but with the economy outlook, we are not anticipating many more donations.
The planned booyah fundraiser was an EPIC success.
BOOYAH FUNDRAISER
Besides using booyah as a fundraiser, we displayed our rocket and answered questions to educate the public about our journey of epic rocketry.
Outreach
We presented rocketry basics to over 150 students from grades 3-7.
We continue to distribute our brochures explaining SLI and our project.
We continue to be showcased in various local newspapers.
In May, we plan to present and display our project at Rockets for Schools at Spaceport Sheboygan.