Post on 24-Feb-2016
description
Harding Flying Bison Team
Team made up of 16 members with diverse educational backgrounds:
Greg Libby ElizabethHunter Matt G. AprilJosh Lisa DarahChi Patrick Matt I.Meredith Cortney ShailerEd
Organization
Seven Divisions
Airframe Greg, Mgr.Motor Matt G., Mgr.Science Payload Darah, Mgr.Avionics Chi, Mgr.Launch Operations Matt I., MgrRecovery Patrick, Mgr.Outreach Elizabeth, Mgr.Team Official & Safety Officer EdProject Progress Cortney
Mission Statement
• Design, build, test and fly a hybrid rocket• Achieve an altitude of exactly 1.00 mile• Measure gamma radiation as a function of altitude• Measure temperature and pressure• Measure x-, y-, z- acceleration during flight• Done safely with no injuries, no damage to property • Rocket recovered without damage
Airframe
Length 90.3 inches 7.5 feetDiameter 4.0 inchesSpan Diameter 12.0 inchesEstimated Mass 246.4 ounces 15.4 pounds
Airframe
Center of Pressure 65.5 inCenter of Gravity 52.0 inMargin of Stability 3.40 body calibers over stable
Motor
Contrail Rockets Certified K-888-BM Hybrid MotorDiameter of motor 75 mmLength of Motor 40.0 inchesNozzle mediumFuel Grain Used Black Smokey
MotorMotor
ManufacturerContrail Rockets Test Date 22 May 2005
Motor Designation K-888-BM-P Certified Until Indefinitely
TMT Metric Designation
K896(87%) Samples per second 480
Metric Dimensions 76 mm x 1016 mm Burn Time 2.67 seconds
Total Weight 4173 g Total Impulse 2400 Ns
Recovery Weight 3992 g Maximum Thrust 3024.8 N
Fuel Grain Weight 625 g Average Thrust 896 N
Nitrous Oxide Volume
2050 cm3
Tripoli Rocketry Association, Inc., Certification
Payload
• Science payload consists of:
– Flight computer number 1– Flight computer number 2– Embedded microcomputer system– Radiation counter– Temperature sensor– Pressure sensor– x-, y-, z- accelerometers– Battery power supply
Payload
• Science instruments, flight computers, recovery transmitter and batteries fit inside 3.78 in diameter by 12.0 inch long phenolic coupler tube
• Switches ,status LEDs, computer connectors mounted on ring in the middle of the coupler
Payload
9-Volt Battery Pack on left Pefectflite Computer on bottom rightG-WIZ FlightComputer on top right
Payload
Geiger counter and x-, y- accelerometers on rightZ- accelerometer in middleEmbedded controller, temperature and pressure sensors on right
Payload
• Science Payload Objectives.• Test and calibrate a Geiger-Mueller radiation counter• Interface Geiger counter to embedded controller to operate
the instrument and collect and store the data.• Test the complete instrument mounted in the airframe using
laboratory alpha, beta and gamma radiation sources.• Test and calibrate pressure sensor• Test and calibrate a temperature sensor• Test and calibrate a low sensitivity and a high sensitivity 3-axis
accelerometer
Payload
• State the payload success criteria
Payload success will be achieved if all the sensors perform satisfactorily and data from each is collected and stored in the on-board computer memory.
Avionics
The recovery subsystem is composed of the following components:
• PerfectFlite MiniAlt/WD to measure and store altitude and deploy drogue and main parachutes.
• DT2x Data Transfer Kit for connecting MiniAlt/WD to computer• G-Wiz MC-2.0 Flight Computer to provide redundant backup of
the PerfectFlite• Nine pin female to female cable with subminiature D
connectors to connect G-Wiz MC-2.0 to computer
Avionics• Software to download data from G-Wiz
• Ejection charges with electric matches to deploy parachutes
• SkyAngle Main Parachute with 57 square feet
• SkyAngle Drogue Parachute with 6.3 square feet
• Shock cord – to be determined
• Walston Retrieval System with Rocket Transmitter, 3-Channel Receiver, and 3-element Antenna
AvionicsDual Deployment Avionics Test
• Test planned for middle of February
PerfectFlite MiniAlt/WD Official USLI Altimeter and Flight Computer
Launch Operations
• We plan to assemble the motor ahead of time, so that all we have to do is load the nitrous
• Draft Launch Plan in Appendix A in CDR, Page 29
RecoveryEjection Charge Amount Test
• Test planned for middle of February• Walston Retrieval System for Rocket Locating• SkyAngle 24 in for Drogue• SkyAngle Large Cert-3 for Main
Outreach
The timeline with major milestones is on page 5• The milestones accomplished are grayed out in
the table• We are behind in launching scale model rocket • We are slightly behind in the construction of the
airframe• We are behind in writing procedures needed• We are behind in outreach with the Girl and Boy
Scout Programs.
Outreach
We are excited about a rocket display in the Harding University Library in late February
We have applied to be introduced with a program in Harding University Chapel that could potentially reach more than 5000 students
We will be giving talks and posters on the USLI Program at Arkansas Undergraduate Research Conference and Sigma Xi Poster