REQUEST FOR PROPOSAL

REQUEST FOR PROPOSAL (RFP) NUMBER: 28504850_00 FOR

DESIGN CONCEPT OF THE

CU Balloon Experimental Satellite (CUBESAT)

PROJECT: HINDENBURG

DATE: October 30, 2000

TIME:

4:12 PM MST

LOCATION: Integrated Teaching & Learning Laboratory

Room 1B50

ATTENTION:

CHRIS KOEHLER 303-492-4750

koehler@colorado.edu

Project: Hindenburg

The HOBOs 1

Overview We are endeavoring to launch a 10 cm3 cube into the upper atmosphere to collect temperature data and return safely. We are proposing this design because we are interested in observing the relationship between altitude and temperature. We already know that temperature is dependent on altitude. We plan to reveal the precise fluctuation and correlation between altitude and temperature. With this data, we will be able to predict the temperature at any given altitude.

Technical Specifications

We will be using a HOBO thermocouple logger with a Type T thermocouple to take temperature data. The Type T thermocouple consists of copper and constantan wire. This thermocouple can measure temperatures within the range of �85◦F to 270◦F (-65◦C to 130◦C). The data logger and thermocouple will be housed in an aluminum cube. The cube will be divided into two sections. The data logger will be insulated in one section and the thermocouple sensors will be exposed in the other section to allow temperature measurements.

We will need to purchase the HOBO data logger and thermocouple. We will also need to purchase aluminum to construct the housing. The software used by the data logger is Box Car 3.6 for windows. We will divide up into two teams, a structures team, and a science team. The structures team will work on machining the housing, interfacing with the

Data Logger

Thermocouples

Interface rails

Project: Hindenburg

The HOBOs 2

balloon, and securely fastening the science components. The science team will work with the data logger to calibrate and test it, and ultimately interface it with the housing. The structures team will consist of Ryan Olds, Brian Mihok, Stephen Russell, Jacob Boettcher, and Jeremy Selstrom. The science team will consist of Scott Miller, Chris Poyzer, Graham Smith, Justin Simmons, and Paul Spotts. We will test the data logger by exposing it to a range of temperatures, simulating the anticipated atmospheric conditions during the flight. We will do this by putting the data logger in a cooler with solid state carbon dioxide, or dry ice. At T-60 minutes, we will verify the functionality of our equipment and attach the cubesat to the balloon. At T-10, we will start collecting data. At launch, the ground station will gain control of the balloon until the loss of the signal. At T+n minutes, we will continue to track the balloon and prepare for retrieval. The people on the structures team must all be certified through the ITLL machine shop class. That way, nobody will be hurt during construction. The science team will use gloves and responsible procedures when handling the solid state carbon dioxide. On the launch site, we will make sure that the package is securely fastened to the tether so that nothing will fall and injure by-standers. Our design is unique because it includes a vertical three-compartment design, which will separate the balloon interface from the data logger and thermocouples. Because the data logger is temperature sensitive, we will insulate it with foam to ensure functionality.

Launch site:

Project: Hindenburg

The HOBOs 3

Management and Cost October 30, 2000 Proposal due @ 4:12 PM MST November 1, 2000 Await comments and Authority to Proceed If proposal is accepted, order parts November 6, 2000 Start machining the housing Await arrival of data logger

Upon arrival, calibrate and test science instruments

November 13, 2000 Integrate parts into housing Conduct tests of structural integrity of the cube

November 18, 2000 Launch the Hindenburg! The structure and science teams will perform the aforementioned tasks. The teams consist of the members stated above. Specific tasks will be delegated according to each team members� strengths. Jacob Boettcher- (303) 583-0358; 1210 Ithaca Dr. Boulder, CO 80305; University

of Colorado Boulder, Aerospace Engineering; Mathematics Brian Mihok- (303) 786-3659; 212 Aden Boulder, CO 80310; University of

Colorado Boulder, Aerospace Engineering; Scanning experience Scott Miller- (303) 786-1370; 363 Baker Boulder, CO 80310; University of

Colorado Boulder, Aerospace Engineering; C++ Programming Ryan Olds- (303) 786-2705; 368 Hallett Boulder, CO 80310; University of

Colorado Boulder, Aerospace Engineering; Modeling, mathematics Chris Poyzer- (303) 786-2159; 131 Buckingham Boulder, CO 80310; University of

Colorado Boulder, Aerospace Engineering; Photoshop Stephen Russell- (303) 786-2268; 377 Buckingham Boulder, CO 80310;

University of Colorado Boulder, Aerospace Engineering; Mathematics Jeremy Selstrom- (303) 786-3673; 224 Aden Boulder, CO 80310; University of

Colorado Boulder, Aerospace Engineering; Comp. Sci.: C++ Justin Simmons- (303) 786-3119; 207 Brackett Boulder, CO 80310; University of

Colorado Boulder, Aerospace Engineering; Robotics Graham Smith- (303) 786-3654; 213 Aden Boulder, CO 80310; University of

Colorado Boulder, Aerospace Engineering; Soccer player Paul Spotts- (720) 565-2937; 4500 19th Street #572 Boulder, CO 80304; University

of Colorado Boulder, Aerospace Engineering; Computers

Project: Hindenburg

The HOBOs 4

Specifications

Component Mass Dimensions Cost Thermocouple with Connector Wires-Type T N/A ~5 cm of wire; Connector ~2 cm by ~3 cm $15 HOBO Type T Thermocouple Logger 26 g 68 mm x 48 mm x 19 mm $95 Boxcar 3.6 for Windows N/A N/A $14 Aluminum Rails 10 cm x 2 cm x 2 cm ~$5 Aluminum Plates ~160 g 10 cm x 10 cm x .1 cm ~$15 Logger Insulation-Unknown Total Budget $144