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 onethird-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
Length:
1836.32mm
Diameter:
57.63
Stability
margin:
OVERSTABLE
6.67
Motor Selection
Aerotech J-275W 54mm Motor Reload
 Doctor Rocket RMS 54/852 Motor Casing and
End Closures

Launch Guide Data
Launch Guide Length and Angle: 72” at Zero
Degrees from Vertical
 Velocity at Launch Guide Departure: 57 ft/s
 Launch Guide Cleared: 0.25 Seconds
 Minimum Velocity for Stable Flight: 44 ft/s
Reached at: 43 In.

Parachute Sizes and Descent Rates
18” Nylon 8-Sided Drogue Parachute
 36” Nylon 8-Sided Main Parachute
 Recovery System Data
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 Drogue Deployed at: 17.3 Seconds at Velocity of
0.043 ft/s
 Altitude at Deployment: Drogue: 5,295 ft, Main:
500 ft
Recovery Speed <20 ft/sec.
 Final Main Parachute Size YTD
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Test Plans and Procedures
Follows NAR regulations
 Check for personnel and environmental hazards

Scale Model Flight Test
 January 10th, 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
 Synchronization of beepers
 Volume of Beepers
 Tracking of rocket with
parabolic microphone
 Triggering Payload Events
 Parachute’s ability to handle
weight of rocket
Dual Deployment Avionics Test
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Testing to take place after construction of Dark Doppler
Ejection Charge Amount Test

Black Powder Weight (grams) = (0.002 * F * L) + 1.0

Pyrodex Grade P Weight (grams) = (0.002 * F * L) + 2.0
F = Ejection force on Nosecone in pounds
L = Length in inches of body tube to be pressurized
Payload Integration Feasibility
 Main Payload Bay
 The temperature logger, barometric altimeter,
beeper battery and battery holder will be securely
mounted and enclosed within the payload bay
 Located directly below the nosecone of the rocket.
 Porting will be constructed for the flow of ambient
air into the payload bay.
Beeper Pods
 Two high-volume piezoelectric beepers
will be mounted on the outside of the
airframe directly below the nosecone
with the sound ports facing down.
 Surrounding the beepers will be a
custom-fabricated shroud to reduce drag
and protect the beepers.
Safety
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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:
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Gloves
Safety glasses
Masks
Ventilation systems
Budget
Expenses
 Donations
 Fundraising
 NASA payment
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$600
$800
$950
$1500
We are feeling pretty good at this point of the project,
but with the economy outlook, it is becoming difficult
to determine how many more donations we will
receive.
A booyah fundraiser is planned for March.
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 were showcased in
various local newspapers.
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QUESTIONS?