1. 1 First Presentations We will have the second half of the individual presentations today. Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

2. 2 First Presentations The set of Individuals presentations today. Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

3. 3 First Group Presentations We’ll start the group presentations Thursday Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

4. 4 First Group Presentations We’ll start the group presentations Thursday with groups 6, 5 & 4 Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

5. 5 First Group Presentations We’ll start the group presentations Thursday with groups 6, 5 & 4 Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

6. 6 First Group Presentations We’ll start the group presentations Thursday with groups 6, 5 & 4 I’d like to to follow the SAE grading document precisely Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

7. 7 First Group Presentations We’ll start the group presentations Thursday with groups 6, 5 & 4 I’d like to to follow the SAE grading document precisely Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html What I mean is that you should have slides with exactly these titles, in their order and only talk about the things they list.

8. 8 SAE Aero Design East Technical Presentation by: The Flying None The Catholic University of America Washington, DC SAE Aero Design East April 11, 2014 Marietta, Georgia

9. 9 Technical Approach Our team … Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

10. 10 Vehicle Sizing, Lift & Drag 175” Weight budget CG just behind CL Main gear position Drag budget and drag as a function of speed Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

11. 11 Configuration High, mid or low wing, why? Tail configuration, Payload Landing gear style and Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

12. 12 Stability & Control Drag center and tail design Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

13. 13 Weight Buildup Weight Budget Weight distribution Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

14. 14 Propulsion Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

15. 15 Performance Analysis Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html Take off analysis

16. 16 Performance Analysis Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html Crouse analysis

17. 17 Stress Analysis Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html Hard landing

18. 18 Material Selection Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html Because it’s cheep Because it’s light

19. 19 Trade Studies Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

20. 20 Empirical Results Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

21. 21 Project Plan / Schedule Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

22. 22 Flight Testing Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html Show DC flight tests

23. 23 Conclusions Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html The Design meet the requirements

24. 24 First Presentations Aim for 7 minutes of presentation and focus on design and how the design was translated into a prototype Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

25. 25 First Presentations Aim for 7 minutes of presentation and focus on design and how the design was translated into a prototype You should have no less that 14 PowerPoint slides Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

26. 26 First Presentations Aim for 7 minutes of presentation and focus on design and how the design was translated into a prototype You should have no less that 14 PowerPoint slides Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

27. 27 First Presentations Aim for 7 minutes of presentation and focus on design and how the design was translated into a prototype You should have no less that 14 PowerPoint slides There should be figures on all slides Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

28. 28 First Presentations Aim for 7 minutes of presentation and focus on design and how the design was translated into a prototype You should have no less that 14 PowerPoint slides There should be figures on all slides… And use your plane Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

29. 29 Skip the Embellished Slide Template Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

30. 30 Skip the Embellished Slide Template Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

31. 31 Skip the Embellished Slide Template Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

32. 32 Skip the Embellished Slide Template Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

33. 33 Skip the Embellished Slide Template Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

34. 34 Skip the Embellished Slide Template Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

35. 35 Skip the Embellished Slide Template Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

36. 36 Skip the Embellished Slide Template Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html They add nothing

37. 37 Focus on Facts Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

38. 38 The Tyranny of Facts Focus on Facts But Facts aren’t enough Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

39. 39 The Tyranny of Facts Focus on Facts But Facts aren’t enough Include context… why the facts matter. Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

40. 40 The Tyranny of Facts Focus on Facts But Facts aren’t enough Include context… why the facts matter. Examples of facts without context: The lift coefficient is 1.2 which is high The density of Balsa (or Paulownia) is 160 kg/m 3 (or 350 kg/m 3 ) Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

41. 41 Pace and Speed Plan and rehearse your words Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

42. 42 Pace and Speed Plan and rehearse your words Talk fast and cover as much ground as you possibly can in 7 minutes Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

43. 43 Pace and Speed Plan and rehearse your words Talk fast and cover as much ground as you possibly can in 7 minutes You audience will get it. Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

44. 44 Pace and Speed Plan and rehearse your words Make an outline on layout how many minutes for each section 1)Who am I and what the &*%$ am I talking about ½ minute 2)Premise statement ½ minute 3)Design objectives1 minute 4)Details of fuselage design 2 minutes 5)Discussion of how system effects and is 2 minutes incorporated in to full plane 6) Conclusion showing proof design meets objective 1 minute Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

45. 45 Pace and Speed Plan and rehearse your words Make an outline on layout how many minutes for each section 1)Who am I and what the &*%$ am I talking about ½ minute 2)Premise statement ½ minute 3)Design objectives1 minute 4)Details of fuselage design 2 minutes 5)Discussion of how system effects and is 2 minutes incorporated in to full plane 6) Conclusion showing proof design meets objective 1 minute Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html Have a timer during your talk

46. 46 Pace and Speed Plan and rehearse your words Make an outline on layout how many minutes for each section 1)Who am I and what the &*%$ am I talking about ½ minute 2)Premise statement ½ minute 3)Design objectives1 minute 4)Details of fuselage design 2 minutes 5)Discussion of how system effects and is 2 minutes incorporated in to full plane 6) Conclusion showing proof design meets objective 1 minute Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html Have a timer during your talk And use it

47. 47 What to Include Talk about How you made design decisions and show the fabricated result Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

48. 48 What to Include Talk about How you made design decisions and show the fabricated result Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

49. 49 What to Include Talk about How you made design decisions and show the fabricated result Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

50. 50 What to Include Talk about How you made design decisions and show the fabricated result Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

51. 51 What to Include Talk about How you made design decisions and show the fabricated result Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

52. 52 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints

53. 53 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints Open loop system

54. 54 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints This is not the design process Open loop system

55. 55 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints This is not the design process Open loop system

56. 56 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints Question: does design meet goals?

57. 57 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints Question: does meet goals? if no

58. 58 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints if no Question: does meet goals?

59. 59 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints if no Question: does meet goals?

60. 60 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints if no Question: does meet goals? +

61. 61 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis + Input: requirements & constraints if no Question: does meet goals? Cycle until requirements and constraints are met and the answer is yes

62. 62 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis + Input: requirements & constraints output: design output: proof design meets goals Question: does meet goals? If yes Now you have a complete design

63. 63 What to Include Talk about How you made design decisions and show the fabricated result Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

64. 64 What to Include Talk about How you made design decisions and show the fabricated result List of design goals for the full plane and each subsystem Remember that the design requirements drive the design Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

65. 65 What to Include Talk about How you made design decisions and show the fabricated result List of design goals for the full plane and each subsystem SAE wants you to should a design evolution Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

66. 66 What to Include Talk about How you made design decisions and show the fabricated result List of design goals for the full plane and each subsystem SAE wants you to should a design evolution Lots of SolidWorks drawings of your plane or subsystem Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

67. 67 What to Include Talk about How you made design decisions and show the fabricated result List of design goals for the full plane and each subsystem SAE wants you to should a design evolution Lots of SolidWorks drawings of your plane or subsystem Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html Detail drawings Overall drawings

68. 68 What Not to Include No need to discuss safety issues How you used your time Where you found or purchased items “because Don thought it would work” “because Don had one ” Common knowledge General theory Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

69. 69 What Not to Include No need to discuss safety issues How you used your time Where you found or purchased items “because Don thought it would work” “because Don had one ” Common knowledge General theory No gesticulation to describe a mechanical system Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

70. 70 Be Ready Don’t look helpless Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

71. 71 Be Ready Don’t look helpless Be ready to go Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

72. 72 Writing & Presentation Issues I have posted my document on writing “Writing issues for engineers”. I consider this a work in progress. There is a “First Draft Check List” in the “Writing issues for engineers” document. Please use after you finish your first draft is assembled for all documents to be turned in for this class. There is a separate section of this documents for presentations

73. Writing & Presentation Issues Will the reader or recipient know what it is? Identify your document with a descriptive title and an introductory sentence. Your document must have your name, the date, the assignment, and a title. Get in the habit of using a premade title pages for MS Word and PowerPoint Use mine as a template if you like 73 Issue 1: Information Rich Title Pages

74. Writing & Presentation Issues Make sure that your reader can quickly find the section he or she is looking for. If you are covering more then one topic, each topic needs to have a titled section. 74 Issue 2: Separate Different Topics

75. Writing & Presentation Issues Use logical sections and subsections Title each so that so that the content is obvious 75 Issues 1&2 Corollary: Sections Titles

76. 76 Writing & Presentation Issues Issue 2: Will the reader or recipient know what it is? Identify your document with a descriptive title and an introductory sentence.

77. 77 Color and other embellishments Color, you can use color but your document but figures should work in B&W if possible. Hyperlinks, you should use them but the web address must appear in a footnote or the reference section. Animations, movies and sound files can be helpful but can also be trouble. Be aware that some of your readers will not be able to access them.

78. 78 Writing & Presentation Issues I have posted my document on writing “Writing issues for engineers”. There is a “First Draft Check List” in the “Writing issues for engineers” document. Please use after you finish your first draft is assembled for all documents to be turned in for this class. There is a separate section of this documents for presentations

79. Information Rich Title Page Will the reader or recipient know what it is? Identify your document with a descriptive title and an introductory sentence. Your document must have your name, the date, the assignment, and a title. Get in the habit of using a premade title pages for MS Word and PowerPoint Use mine as a template if you like 79

80. Separate Different Topics Make sure that your reader can quickly find the section he or she is looking for. If you are covering more then one topic, each topic needs to have a titled section. 80

81. Section Titles Use logical sections and subsections Title each so that so that the content is obvious 81

82. Section Titles Use logical sections and subsections Title each so that so that the content is obvious “Introduction” is not a good subsection title for the introduction “Analysis” is not a good subsection title of the analysis section 82

83. 83 Color and other embellishments Color, you can use color but your document but figures should work in B&W if possible. Hyperlinks, you should use them but the web address must appear in a footnote or the reference section. Animations, movies and sound files can be helpful but can also be trouble. Be aware that some of your readers will not be able to access them.

84. 84 Refine Documentation Each member of the group should be sure that you bring ALL electronic files everyday SolidWorks drawings

85. 85 Documentation Each member of the group should be sure that you bring all electronic files everyday SolidWorks drawings Excel budget and receipts Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

86. 86 Documentation Each member of the group should be sure that you bring all electronic files everyday SolidWorks drawings Excel budget, must be this version or have this information Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

87. 87 Documentation Each member of the group should be sure that you bring all electronic files everyday SolidWorks drawings Excel budget, must be this version or have this information Item(s) Date of purchase Supplier Date received Total cost (items + shipping and anything else) Who’s credit was used Name of the receipt pdf file One line per transaction Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

88. 88 Documentation Please bring all your electronic files everyday SolidWorks drawings Excel budget Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html It’s best to use the document that I started

89. 89 Documentation Please bring all your electronic files everyday SolidWorks drawings Excel budget Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html It’s best to use the document that I started It’s on the class web page

90. 90 Design Support Documents Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html 1)Gantt chart A timeline with milestones, component delivery dates, estimated dates of the completions of sub-tasks. This can be a separate Excel document. 2) Weight and drag budget A document that lists target, design and as-build weight and location for all components on the plane. Specifically state what are estimates and what was calculated in SolidWorks and what was measured as-built. Include the coordinates of the CGs for all subsystem. The coordinates must be in a defined, single coordinate system and include a figure that shows the plane, coordinate system and centers. This should be in the main MS Word document.

91. 91 Design Support Documents Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html 3) Cost budget & parts inventory A list of all component parts you will include in your plane. You should have links to data sheets. The budget should include all planed expenditures and all money spent by your group related to the project. This is can be a summary of a separate Excel spread sheet. You must save all receipts. 4) Toolbox inventory A specific list of all tools, bolts and any other hardware with sized. Do not include this in the Excel document. This should be in the main MS Word document. 5) Safety protocols Read the new School of Engineering Safety document and write a statement that indicates that you have read and will comply with all points of the School of Engineering Safety. This document must be signed by all team members.

92. 92 Design Support Documents Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html 3) Cost budget & parts inventory A list of all component parts you will include in your plane. You should have links to data sheets. The budget should include all planed expenditures and all money spent by your group related to the project. This is can be a summary of a separate Excel spread sheet. You must save all receipts. 4) Toolbox inventory A specific list of all tools, bolts and any other hardware with sized. Do not include this in the Excel document. This should be in the main MS Word document. 5) Safety protocols Read the new School of Engineering Safety document and write a statement that indicates that you have read and will comply with all points of the School of Engineering Safety. This document must be signed by all team members. Plus send Ken your SolidWorks

93. 93 Group Purchases Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html We need to purchase: charger Charge level indicator

94. 94 SAE Reports Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html Please don’t resubmit last semesters reports

95. 95 Materials and Purchasing It is very import that we straighten the budget today Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

96. 96 Materials and Purchasing It is very import that we straighten the budget today Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

97. 97 Materials and Purchasing It is very import that we straighten the budget today

98. 98 Materials and Purchasing It is very import that we straighten the budget today

99. 99 Materials I can cut materials for you to any dimension, exactly to the dimensions you give me.

100. 100 Expediency Be sure you are making design decisions based on engineering principles. Please don’t Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

101. 101 Materials Ask Ken to bring specific material you need Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html Ken

102. 102 Materials and Purchasing It is very import that we straighten the budget today There are problems with the credit card MNEY

103. 103 Materials and Purchasing It is very import that we straighten the budget today There are problems with the credit card The card problems include the lost receipts from this class MNEY

104. 104 Materials and Purchasing e-mail Hong right away to schedule time She is nicer that I am and will help you

105. 105 Flight Testing Jim and Ed want to test Tuesday, Feb 25 Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html That’s 7 days off

106. 106 Flight Testing I’m hoping that Ken will schedule and do the technical inspection and taxi tests with you Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html …and you have to do the taxi test and technical inspection before the flight test SMTWThFS 678 9101112131415 161718 Today19202122 232425 Flight Test 262728 SAE Deadline May 1 I’m still working on this but the big issues is

107. 107 Machine Shop Please work with Don, Hong or anyone that has built things Show them sketches of ideas and be open to new ideas This will make it easier for you Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

108. 108 Machine Shop Please work with Don, Hong or anyone that has built things Show them sketches of ideas and be open to new ideas Simplify your design Settle on the details Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

109. 109 Assignment 2 Fix assignment 1 A number of groups did not submit assignment 2 or didn’t really update anything Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

110. 110 Assignment 2 Fix assignment 1 Toolbox Please just list what you need to carry to the airfield. Glue that take overnight to dry is probably not appropriate for that list but cyanoacrylate glue (Superglue) is You should know what each screw is for Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

111. 111 Assignment 2 Fix assignment 1 Toolbox Please just list what you need to carry to the airfield. Glue that take overnight to dry is probably not appropriate for that list but cyanoacrylate glue (Superglue) is You should know what each screw is for Please don’t list random items Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

112. 112 Assignment 2 Fix assignment 1 Toolbox Please just list what you need to carry to the airfield. Glue that take overnight to dry is probably not appropriate for that list but cyanoacrylate glue (Superglue) is You should know what each screw is for Please don’t list random items ¼” screws Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

113. 113 Assignment 2 Fix assignment 1 Toolbox Please just list what you need to carry to the airfield. Glue that take overnight to dry is probably not appropriate for that list but cyanoacrylate glue (Superglue) is You should know what each screw is for Please don’t list random items ¼” screws, a hammer Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

114. 114 Assignment 2 Fix assignment 1 Toolbox Please just list what you need to carry to the airfield. Glue that take overnight to dry is probably not appropriate for that list but cyanoacrylate glue (Superglue) is You should know what each screw is for Please don’t list random items ¼” screws, a hammer, weed wacker Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

115. 115 Assignment 2 Fix assignment 1 Toolbox Please just list what you need to carry to the airfield. Glue that take overnight to dry is probably not appropriate for that list but cyanoacrylate glue (Superglue) is You should know what each screw is for Please don’t list random items ¼” screws, a hammer, weed wacker Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

116. 116 Assignment 2 Fix assignment 1 Toolbox Please just list what you need to carry to the airfield. Ask Jason, Hong, Ken or me what you really need Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

117. 117 Money Lets start with the group that has the most people here Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

118. 118 Money Thanks for the help resolving the credit card issues Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

119. 119 Flight Testing Jim and Ed want to test Monday, Feb 24 Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

120. 120 Flight Testing Jim and Ed want to test Monday, Feb 24 Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html SMTWThFS 6 Today78 9101112131415 16171819202122 2324 Flight Test 2526272829 I’m still working on this but the big issues is

121. 121 Flight Testing Jim and Ed want to test Monday, Feb 24 Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html …and you have to do the taxi test and technical inspection before the flight test I’m still working on this but the big issues is SMTWThFS 6 Today78 9101112131415 161718 tech insp taxi test 19202122 232425 Flight Test 2627281

122. 122 So Given the Calendar Work with Ken, Hong, Don, and Me Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

123. 123 Flight Test I would like you to make all the arrangements regarding getting up to the airfield Tuesday. Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

124. 124 Money Thanks for the help resolving the credit card issues Today we can start with group ? Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

125. 125 Myths and Truths Myths Gorilla Glue is no stronger than ordinary carpenters glue Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

126. 126 Myths and Truths Myths Gorilla Glue is no stronger than ordinary carpenters glue You can make a part bigger then the travel range of the CNC machine Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

127. 127 Myths and Truths Myths Gorilla Glue is no stronger than ordinary carpenters glue You can make a part bigger then the travel range of the CNC machine Ken brought enough wood for everyone Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html Ken

128. 128 Myths and Truths Myths Gorilla Glue is no stronger than ordinary carpenters glue You can make a part bigger then the travel range of the CNC machine Ken brought enough wood for everyone Purchase always come through as hoped Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

129. 129 Myths and Truths Truths Round holes are easier to make then not round holes Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

130. 130 Myths and Truths Truths Round holes are easier to make then not round holes Hong needs some sleep Taken from http://patheoldminer.rootsweb.ancestry.com/faybuffington.html

131. 131 You need to know where the CG is Weighted averages. x y

132. 132 Mass and Aerodynamic Centers Weighted averages. x y

133. 133 Mass and Aerodynamic Centers Weighted averages. Pick an origin x y

134. 134 Mass and Aerodynamic Centers Weighted averages. Pick an origin, make a table x y componentMass (kg)x-location (cm) engine0.45-3 fuselage2.175 Wing2.327 Front landing gear0.3512 Rear landing gear0.6434 Fuel tank0.338 Radio reciever0.257 tail0.75150 Payload Total7.17319

135. 135 Mass and Aerodynamic Centers Weighted averages. Pick an origin, make a table x y componentMass (kg)x-location (cm) engine0.45-3 fuselage2.175 Wing2.327 Front landing gear0.3512 Rear landing gear0.6434 Fuel tank0.338 Radio reciever0.257 tail0.75150 Payload Total7.17319 51.2 cm

136. 136 Mass and Aerodynamic Centers Each component that is exposed to the exterior flow Has a net drag force that acts on that component The magnitude of that force is 51.2 cm These drag forces occur at specific locations These location must be determined Once you have them x z

137. 137 Mass and Aerodynamic Centers Each component that is exposed to the exterior flow Has a net drag force that acts on that component The magnitude of that force is x z 51.2 cm These drag forces occur at specific locations These location must be determined Once you have them

138. 138 Mass and Aerodynamic Centers x z 51.2 cm Once you have them… DRAW A FREE BODY DIAGRAM

139. 139 Mass and Aerodynamic Centers Once you have them Then sum forces and moments mg thrust Wing drag tail drag fuselage drag

140. 140 Mass and Aerodynamic Centers Once you have them Then sum forces and moments mg thrust Wing drag tail drag fuselage drag x z

141. 141 Mass and Aerodynamic Centers Once you have them Then sum forces and moments mg thrust Wing drag tail drag fuselage drag x z

142. 142 Mass and Aerodynamic Centers Once you have them Then sum forces and moments mg thrust Wing drag tail drag fuselage drag x z

143. 143 Mass and Aerodynamic Centers Once you have them Then sum forces and moments mg thrust Wing drag tail drag fuselage drag x z

144. 144 Mass and Aerodynamic Centers This summing for moments is precisely the same as the weighted average x z 51.2 cm componentNet drag (N)z-location (cm) x-location (cm fuselage2.7544 Wing15.31745 Front landing gear 3.5-1234 Rear landing gear 5.8-1176 tail13.721125 Total40.7

145. 145 You MUST include this information This summing for moments is precisely the same as the weighted average x z 51.2 cm componentNet drag (N)z-location (cm) x-location (cm fuselage2.7544 Wing15.31745 Front landing gear 3.5-1234 Rear landing gear 5.8-1176 tail13.721125 Total40.7 So have a figure with YOUR plane, a coordinate system, and the location of the centers

146. 146 Design to Meet Objectives The objectives are requirements and constraints Requirements and constraints are separate Requirements: what you are expecting from the full system or subsystem Constraints: what you are stuck with They must be specific

147. 147 Design to Meet Objectives The objectives are requirements and constraints Requirements and constraints are separate Requirements: what you are expecting from the full system or subsystem Constraints: what you are stuck with They must be specific Landing gear must be strong enough

148. 148 Design to Meet Objectives The objectives are requirements and constraints Requirements and constraints are separate Requirements: what you are expecting from the full system or subsystem Constraints: what you are stuck with They must be specific Landing gear must be strong enough Must remain elastic for 3 f/s vertical fall will transferring less that a 2 g impulse to the fuselage

149. Requirements and Constraints There MUST be requirements and constraints for the plane itself Every subsystem MUST have bulletined requirements and constraints listed separately The should have numbers and be specific

150. Fuselage Requirements Hold: 4 cell battery (based on 6 minute flight) z57 model radio receiver (with link to data sheet) 27 lbs payload at plane’s unloaded CG and wing’s CL Removable wing mount able to transfer 42 lbs from wing to fuselage. Engine mount within ± ½ in of current estimate of plane’s aerodynamic center Transfer 2 x planes full weight (84 lbs) to landing gear … Support 2.5 lb horizontal force generated by tail with rudder at full deployment …

151. 151 ME 442 Senior Project Week 3 Dr. Joseph Vignola Pangborn G43, Phone 202-319-6132, vignola@cua.eduvignola@cua.edu Tuesdays & Thursdays, 9:35-12:25 AM, Pangborn G43 Office Hours: Tuesdays, 1:00-2:00 PM

152. Week 3 Build

153. Week 3 Please email your t-shirt size to Ms. Hicks and Nicole Bull 43bull@cardinalmail.cua.edu Today I would like to see Excel budgets