Flight Readiness ReviewAtomic Aggies

Final Launch Vehicle Dimensions

Diameter 5.5”Overall length: 117.14 inchesApproximate Loaded Weight: 35.25 lb.

Key Design Features of launch vehicle5.5 “ Blue Tube Fiber glass reinforced3 (3/8”) Birch Plywood fin setOgive polycarbonate noseconeElectronic Bay contains 3 ports for external

data acquisition (solar irradiance, UV and video)

Motor DescriptionCesaroni Technology L800 ReloadPropellant Weight: 63.3 oz.Average Thrust: 804 NTotal Weight: 123.8 oz.

Rocket flight stability in static margin diagram

CP: 92.65 inches CG: 69.84 inchesStability Margin:

4.13 Overstable

Launch thrust-to-weight ratio and rail exit velocityExit Rail Velocity from RockSim: 57.1

feet/sec.

Mass statementMet mass predictions for designMaintained vehicle weight to 440 oz.Mass growth since CDR 6%

Parachute sizes, recovery harness type, size, and lengthDrogue Parachute:Classic Elliptical 24” diameterDecent Rate: 53.91 ft/s

Main Parachute:Iris Ultra96” diameterDecent Rate: 5.34 ft/s

Recovery harness will be 27’ of ½” tubular nylon.

Kinetic energy at key phases of the mission

Parachute Velocity at Deployment (ft./s)

Landing Velocity (ft./s)

Kinetic Energy During Decent (ft-lb)

Kinetic Energy Upon Landing (ft-lb)

Drogue0

Section 1 – 333.5Section 2 – 300.1Section 3 – 606.98

Main 49.5 5.34 Section 1 – 3.27Section 2 – 2.94 Section 3 – 5.955

Predicted drift from the launch pad with a 5-,10-,15-,20-mph wind

Wind Predicted Drift

5 MPH 340.845 MPH

10 MPH 682.155 MPH

15 MPH 1023 MPH

20 MPH 1362.45 MPH

Test plans and proceduresFull scale test launch:

1st test launch took place February 16th 2nd and 3rd test launch took place on March 17th

Full-scale flight testAltitude vs. time

Feburary 16th March 17th

Recovery system testsAltimeter check - Simulation of altitude by

changing the pressure in jar. Wiring test – check for continuity by shorting

leads on terminalGround test – test ejection charges and shear

pins

Summary of Requirements Verification (Launch vehicle)1 dedicated altimeter for scoringMaximum velocity is 52% of Subsonic (589.64 ft./sec.)Peak Altitude is 5277.8 ft. Rocket is recoverable and reusable containing 3 independent

sectionsAssembled and prepared vehicle in 1 hr. 20 mins during 2 test flightsTested on board components and have remained flight ready for 2.3

hoursLaunch Vehicle is designed to fit on 8’ x 1” rail and launched by a

12 V ignition system w/o external supportCesaroni L800 is a reloadable motorTotal impulse is 3757 Ns3.4% of design is BallastVehicle design construction costs has maintained under $5,000

Payload design and dimensionsThe scientific payload and components will

be mounted on a 5.36” x 18” piece of ½” ply board.

Blue-Tube coupler material split lengthwise around the payload making a 5.36” diameter

Payload integrationThe payload will be encased in a blue tube

coupler that will be cut to fit inside of the air frame allowing for easy access to the internal components.

The payload bay will be integrated into the rocket body by sliding it in the air frame and held in place by a piece of blue tube cut to the radius of 2.68” place below the payload inside of the air frame.

The payload will be aligned with a hole on the exterior of the airframe for the HD video camera.

Interfaces with ground systemsGPS – The GPS system is the BRB900 TX/RX

Base GPS Telemetry system operating at 900MHz. The data will be received by a LCD hand held receiver and Smart Data Controller connected to the ground station computer.

Transmitter/Receiver – The Xbee Pro 900 transceiver will transmit and receive the stored data from the DE0 – Nano board to the ground station.

Summary of requirements verification (payload)The payload measures solar irradiance, ultraviolet

radiation, atmospheric pressure, temperature, and humidity .

The payload contains one camera taking video throughout the duration of the flight.

The payload includes a GPS unit to aid in vehicle recovery.

Data will be sampled and stored starting at apogee until ten minutes after landing.

The data will be transmitted wirelessly to a ground receiving station and stored on a personal computer.

Questions from Panel?