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Current:

• modify solidworks model
• Drag v Velocity model (@ 9000')
• Calculate maximum drag force

Backlog:

• Maximum Stresses
• Bracket design
• Fabrication with carbon renforced plastic
• CFD

From the selection in #7 we will be designing for a M-1290 or a M-795

Current:

• stress analysis (TODO type up)
• solidworks model

Backlog:

• plywood evaluation
• epoxy evaluation

Parameters of Motor

• 98mm diameter
• 1500N thrust (subject to change)
• safety factor of 3
• 6673 g

Being implementation of state machine in the contoller process

Requirements

• have to use Blue tube
• have to use motor [from]http://www.moto-joe.com/)
• speed of 30.5 m/s 5.5m off the rail
• ground hit less than 9m/s
• apogee approx. 3200m with 12km/h wind, 85 deg launch angle
• subsonic velocity
• stability between 1 and 1.5

Current :
Fuck with the fins till we get close to these goals for all three motors

• Stability of 1.5
• low Mach
• Apogee close to 3480m
• low cost

Backlog:

• Performance envelope at various weather conditions

Current:

• minimum dimensions and shroud lengths to meet competition air speed requirements

• first approximate mass 5lbs
• approx diameter ?
• approx. volume ?

Backlog

• mass and volume with shroud lines
• maximum force at ejection
• design anchor bracket for parachute

The GPS itself is setup with the standard TX to RX and power/ground.
When reading, setup a serial with UART. The GPS will then return NMEA sentences. Specifically it will return 4 sentences in the format:

GPGGA,...
GPGSA,...
GPRMC,...
GPYTG,...

This should then be parsed for the GPGGA and GPRMC strings as these 2 strings will be the ones to hold longitude, latitude, angle etc... separated by commas
ex: GPGGA,145240,000,3051.7773,N,10035.7586,W,1,6,1.30,359.4,M,-22.2,M, ,*60
145240 -> time, 3051.7773,N -> latitude using degree minutes, 10035.7586,W -> longitude
Will be updated with what everything else means.

useful links
setup: http://www.toptechboy.com/tutorial/beaglebone-black-gps-lesson-1-hooking-up-the-adafruit-ultimate-gps/
NMEA: http://www.toptechboy.com/arduino/lesson-24-understanding-gps-nmea-sentences/

Current:

• Finalize shape with open rocket

Backlog:

• Drag coefficient
• Spin effect
• Flutter Stresses
• Fabrication with carbon renforced plywood

• 9 DOF IMU with the 6 DOF for backup
• range check radios to 610m minimum

DEADLINE: Tuesday

• 5 Slices cut off Carbon Fiber Plate
• Shroud line connections

Model with material properties + mass properties for

• Blue tube here
• Nose cone here
• Motor M795
• @NikhilPeri Motor Mount
• @OldToast Fins
• @VincentCammalleri Air Brake

More Components that need to be finalized

• Avionics Bay

https://github.com/uOstar/barista/blob/f4348592b627646d7224cc884c453fa12c90b59d/app/rocket/kinetics.py#L53

Instead of np.square(accel), shouldn't this it just be the value of g(9.80 m/s) squared in the reference frame?

Florida International University: Aerotech M-1939 rocket motor here on page 39
Website gives thrust curves and also motor specs here
Texas A&M University here

• wire up board
• read_acceleration and read_orientation returns a hash
• client to send and receive radio
• revisit airbrakes and make sure they work
• Implement altimeter
• Test altimeter
• Add Tests for IMU
• Implement brake deploy algorithm
• take orientation on initialization
• power on and test COTS altimeter
• range test radios

Fix these things please

• Serial port timeouts are not implemented correctly in gps.py.
• Use python logging instead of print statements

lets run our code through a linter to fix style issues and run all the test cases...
even better lets write a shell script to do all this for us

suggested linter here

• update mass model to reflect solidworks
• update apogee to reflect 70 degree worst case launch angle
• compute stability at full and empty mass
• compute launch rail velocity with 5.5m of rail
• compute minimum rail length to achieve rail exit of 30.5m/s