RLP - 1

AAE 439

ROCKET LAUNCH PROJECT

AAE 439Fall 2008

ROCKET LAUNCH PROJECT

AAE 439Fall 2008

IVANA HRBUD

RLP - 2

AAE 439

Flight of Model RocketFlight of Model Rocket

The Trajectory of a Rocket is dictated by:

Atmospheric Conditions (Wind)

Aerodynamics

Propulsion

Recovery

Launch Angle

RLP - 3

AAE 439

Model RocketModel Rocket

RecoveryParachute

Shock Cord/Wadding/

Swivel

Nose Cone

Body Tube

Fins

Single-UseRocket Motor

Rail Buttons

Motor MountPayload:• Altimeter• Beeper

RLP - 4

AAE 439

Single-Use Rocket MotorSingle-Use Rocket Motor

RLP - 5

AAE 439

Single-Use Rocket MotorSingle-Use Rocket Motor

Motors used for Rocket Launch Project

F42–4T G40–4W G77–4R G80–4T

14.8

cm

10.7

cm

10.4

cm

8.4

cm

m = 76 g m = 121 g m = 125 g m = 113 g

2.9 cm

Notch forMotor Retainer

RLP - 6

AAE 439

PayloadPayload

AltimeterDimensions:

6.3 cm x 1.7 cm (h) x 1.4 cm (w)

Mass: 14 g with battery

BeeperDimensions:

7.8 cm x 1.5 cm x 1.5 cm

Mass: 14 g with battery

Protection Case: m = ?? g

Payload bay should be installed in nose cone!

RLP - 7

AAE 439

AerodynamicsAerodynamics

Tasks:Drag balance calibration

Experimental data acquisition

Data reduction: CD as a function of wind speed

Data analysis: experimental vs. analytical

RLP - 8

AAE 439

Propulsion TestPropulsion Test

Tasks:Thrust stand calibration

Experimental data acquisition

Data reduction: Thrust profile as a function of time

Data analysis: experimental vs. analytical

Data conditioning (trajectory code)

RLP - 9

AAE 439

Propulsion TestPropulsion Test

RLP - 10

AAE 439

Drop/Recovery TestDrop/Recovery Test

Tasks:Experimental data acquisition

Data reduction: CD evaluation

Data analysis: experimental vs. analytical

RLP - 11

AAE 439

Model RocketModel Rocket

RecoveryParachute

Shock Cord/Wadding/

Swivel

Nose Cone

Body Tube

Fins

Single-UseRocket Motor

Rail Buttons

Motor MountPayload:• Altimeter• Beeper

RLP - 12

AAE 439

CONSTRUCTIONCONSTRUCTION

GENERALAnalytically determine Center of Gravity (CG) and Center of Pressure (CP)!

MOTOR MOUNTYou are not allowed to glue the motor into the motor mount or to perform any

physical alterations to the motor!

Motor Stop (front)

Motor Retainer (aft)

Motor Spacer for F42–Motor

FINS

RAIL BUTTONSOne rail button must be installed at the Center–of–Gravity point.

PAYLOAD BAYSPayload bays for altimeter and beeper are to be installed in the nose cone.

Payload bays have to have front (FIXED) and aft closures (REMOVABLE)!

RLP - 13

AAE 439