1. Team 5 – Propulsion QDR #2 Scott Bird Mike Downes Kelby Haase
Grant Hile
Cyrus Sigari
Sarah Umberger
Jen Watson
November 20, 2003
Propulsion QDR #2

2. Preview Modification to gold.m New Propeller Choice November 20, 2003
Propulsion QDR #2

3. Which plane are we talking about?
Tail Dragger
Flaperons
Pod
Tractor Engine
November 20, 2003
Propulsion QDR #2

4. Propeller Sizing – Sizing for Take-Off
Updated chord distribution in gold.m
Used modified gold.m code
Varied Pitch and Propeller Diameter
Max HP at RPM = 9000
November 20, 2003
Propulsion QDR #2

5. Updated chord distribution in gold.m
inches
8.17 inches
Divided picture of propeller into tenth of a Radius sections
Red box is 9% of the Radius (default in gold.m)
Yellow boxes were measured at each tenth of a Radius
November 20, 2003
Propulsion QDR #2

6. Updated chord distribution in gold.m
Chord length of each yellow box used to calculate c/R for each 1/10th of a Radius
New chord distribution put into MATLAB code
Modified gold.m ran to find new propeller
November 20, 2003
Propulsion QDR #2

7. Choosing a new propeller (again!)
Propeller Choice: 19x5 OR 18x6
November 20, 2003
Propulsion QDR #2

8. Propeller Sizing – Manufactured Choice
19x5 – DIFFICULT to find on market
Zinger 18x6 Pro-Zinger Wood Propeller
Price = $18.99
Material: Wood
November 20, 2003
Propulsion QDR #2

9. Updated chord distribution in gold.m New Propeller:
Summary
Updated chord distribution in gold.m
New Propeller:
Zinger 18x6 Pro-Zinger Wood Propeller
Next Steps for the Propulsion Team:
Verify takeoff and cruise conditions with new propeller
ITERATE as other values change (yay!)
November 20, 2003
Propulsion QDR #2

10. Questions?
Questions??
November 20, 2003
Propulsion QDR #2

11. Choosing a new propeller (again!)
Some of the larger diameters will not work at all!
November 20, 2003
Propulsion QDR #2

12. Choosing a new propeller (again!)
November 20, 2003
Propulsion QDR #2