1. Group 13 Heavy Lift Cargo Plane Richard-Marc Hernandez Yoosuk Kee Stephen McNulty Jessica Pisano Chi Yan Project Advisor: Siva Thangam

2. 10/02/03ME-423 Senior Design2 Objectives  The plane to be flight capable  The plane to carry 2-3 times its own weight  The plane meets the specifications of the 2004 SAE Aero Design East competition  To finish the design of the plane by December and begin construction and testing in January  To compete well at competition and improve Stevens reputation  For the team to improve and expand their knowledge of the design and construction of airplanes  To stay within the parameters of the budget that is set by the team

3. 10/02/03ME-423 Senior Design3 Team Dynamics  Five members  High level of commitment and motivation  Team divided into 2 smaller groups for more efficient use of time  Smaller teams research separate parts of plane  Team meets as a whole weekly to discuss research results

4. 10/02/03ME-423 Senior Design4 Advisor Meetings  Project Advisor: Siva Thangam  At least once a week  Offers guidance from experience  Teaches team some of the knowledge not yet learned

5. 10/02/03ME-423 Senior Design5 Schedule

6. 10/02/03ME-423 Senior Design6 Journal/Progress  Detailed journal kept weekly for our group  Updates on work done by smaller groups kept  Advisor meetings kept in journal  Our group is fairly on track according to our Gantt Chart and proposed progress  Our advisor feels that we are ahead of where previous groups were at this stage

7. 10/02/03ME-423 Senior Design7 Deliverables  An airplane design  Budget for the prototype  Detailed calculations  CAD drawings  Various analyses of the design

8. 10/02/03ME-423 Senior Design8 Purpose  Individual member interest -- career or hobby oriented  Expand knowledge, and experience with the design and manufacture of airplanes  To compete against other colleges and universities  To get exposure to students at other schools and their approach to the engineering design process

9. 10/02/03ME-423 Senior Design9 Major Problems  Building the selected design  Lack of experience to correct problems that arise  Building as early as possible to have time to correct problems that arise  Conforming to ALL specifications of the competition  Designing sturdy landing gear to withstand many test runs

10. 10/02/03ME-423 Senior Design10 Budget

11. 10/02/03ME-423 Senior Design11 Approach  Understand rules and regulations of competition  Breakdown plane into smaller components –Airfoils –Wing shape –Tail stabilizer –Landing gear –Fuselage –Control Surface

12. 10/02/03ME-423 Senior Design12 Approach (cont.)  Construction of aircraft  Test –Make small adjustment to enhance performance  Fly aircraft  Attend competition and compete well among other schools

13. 10/02/03ME-423 Senior Design13 Competition Specs  Last year’s competition –Take-off within 200ft –Land safely within 400ft –Total wingspan cannot exceed 6ft –Planform area cannot exceed 1200in 2 –Dimensions of the payload support must be built with a minimum volume of 300in 3 –Engine will be provided by the event organizers

14. 10/02/03ME-423 Senior Design14 Disciplines Used  Fluids  Dynamics  Control Systems  Statics  Mechanics  Physics  Calculus  Engineering Economics  Machine Shop

15. 10/02/03ME-423 Senior Design15 Conceptual Designs Wing Elliptical Ideal for flight at slow speeds Minimum drag for a given aspect ratio (5.1) Difficult to construct Stall characteristics are not as favorable as a rectangular wing

16. 10/02/03ME-423 Senior Design16 Conceptual Designs (cont.) Wing Rectangular Wing Rectangular Dihedral Not as efficient as elliptical wing Stalls first at the wing root Provides stall warning Greater aileron control

17. 10/02/03ME-423 Senior Design17 Conceptual Designs (cont.) Wing Tapered Wing Tapered Dihedral Decrease in drag Increase in lift (most effective at high speeds) Highly tapered wing stalls first slightly inboard of the wingtip Combination of both rectangular and tapered configurations better for low-speed aircraft The rectangular inboard section provides good stall characteristics and is cost effective The tapered outboard portion decreases weight and increases aspect ratio

18. 10/02/03ME-423 Senior Design18 Questions?