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Make it Fly PPT By: James Davis. Weight (W) Lift (L)

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Presentation on theme: "Make it Fly PPT By: James Davis. Weight (W) Lift (L)"— Presentation transcript:

1 Make it Fly PPT By: James Davis

2

3 Weight (W)

4 Lift (L)

5 Weight (W) Lift (L) Thrust (T)

6 Weight (W) Lift (L) Thrust (T)Drag (D)

7 Weight (W) Lift (L) Thrust (T)Drag (D)

8 A-10 Thunder Bolt Weight Mass(m) = kg

9 A-10 Thunder Bolt Weight W = ?Mass(m) = kg

10 W = m ∙ g A-10 Thunder Bolt Weight Mass(m) = kg

11 W = m ∙ g = (13,800 kg) ∙ (9.81 m/s 2 ) A-10 Thunder Bolt Weight

12 W = m ∙ g = 135,378 kg ∙ m/s 2 A-10 Thunder Bolt Weight

13 W = 135,378 N A-10 Thunder Bolt Weight

14 W = 135,378 N A-10 Thunder Bolt Level Flight L = ?

15 W = 135,378 N A-10 Thunder Bolt Level Flight L = W

16 W = 135,378 N A-10 Thunder Bolt Level Flight L = W = 135,378 N

17 W = 135,378 N A-10 Thunder Bolt Level Flight (L = W) L = 135,378 N

18 SR-71 Blackbird Steady Flight T = 290, 000 N D = ?

19 SR-71 Blackbird Steady Flight T = 290, 000 N D = T

20 SR-71 Blackbird Steady Flight (T = D) T = 290, 000 N D = 290,000 N

21 Basic Aerodynamics

22 Two Sheets of Paper ( No Airflow)

23 P = P atm

24 Two Sheets of Paper ( No Airflow) P = P atm

25 Two Sheets of Paper (with airflow)

26 P < P atm P = P atm

27 Two Sheets of Paper (with airflow) P < P atm P = P atm

28 Two Sheets of Paper P = P atm P < P atm P = P atm No Airflow Airflow Between Sheets

29 (No) Airflow w/ Straw Balanced Air Pressure

30 (No) Airflow w/ Straw Balanced Air Pressure

31 (No) Airflow w/ Straw

32 Airflow w/ Straw Blow

33 Airflow w/ Straw Blow

34 Airflow w/ Straw Blow

35 Airflow w/ Straw Blow

36 Forces on our ping pong ball

37 Weight

38 Forces on our ping pong ball Weight Wind Hair Dryer

39 Forces on our ping pong ball Weight Wind Hair Dryer

40 Forces on our ping pong ball Weight Wind Hair Dryer Drag

41 Forces on our ping pong ball Weight Drag

42 Forces on our ping pong ball Weight Wind Hair Dryer

43 Forces on our ping pong ball Weight Wind Hair Dryer

44 Forces on our ping pong ball Weight Wind Hair Dryer

45 Forces on our ping pong ball Weight Wind Hair Dryer Drag

46 Forces on our ping pong ball Weight Wind Hair Dryer Drag

47 Forces on our ping pong ball Weight Wind Hair Dryer Drag Lift

48 Forces on our ping pong ball Weight Wind Hair Dryer Drag Lift Weight Wind Hair Dryer Drag

49 Bernoulli's Principle Wind Hair Dryer P < P atm P atm

50 Forces on our ping pong ball Weight Hair Dryer Drag Lift

51 Forces on our ping pong ball/ Aircraft Hair Dryer

52 Forces on our ping pong ball/ Aircraft Hair Dryer

53 Ruler Balancing Act

54 Ruler Balancing Act (No Airflow)

55 Ruler Balancing Act(Blowing Under) Straw

56 Ruler Balancing Act(Blowing Under) Straw

57 Ruler Balancing Act (Blowing Under) Straw

58 Ruler Balancing Act (Blowing Over) Straw

59 Fan Free Stream Velocity The Tuffs(strings) show the direction of the free stream velocity which changes depending on which part of the fan you are in front of. (see next slide)

60 Air Velocity Direction

61 Perform experiments in the area of the fan circled.

62 V air Free Stream Velocity (V air )

63 V air α Relative Angle of Attack (α)

64 Angle of Attack Demo Group Member 1: Hold the back ends of the popsicle sticks. Group Member 2: Hold the front ends of the popsicle sticks. Group Member 3: Control the Fan Speed


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