Recent content by lukus09

  1. L

    How much do these type of flaps increase drag?

    if the flaps are fully retracted and theta is equal 0 that would mean the equation is equal to 0? is sin^2(theta) a trig identity? why am i get syntax error on calculator?
  2. L

    How much do these type of flaps increase drag?

    thanks, just what I am looking for... is sin theta the flap angle? it says the change in drag coeffcient is equal to, so do i add this on to the original drag of the aerofoil?
  3. L

    How much do these type of flaps increase drag?

    by how much will single-slotted Fowler-type flaps increase the drag coefficient of an aerofoil?
  4. L

    How much do spoilers increase drag coefficient?

    i am modelling the braking system. so i need to know how much drag the spoilers provide to enhance my model
  5. L

    How much do spoilers increase drag coefficient?

    what do you mean by outside sources?
  6. L

    How much do spoilers increase drag coefficient?

    Approximetly how much is the drag coefficient if orginally the coefficient is 0.02689. I know it depends on aircraft etc but I am only looking a rough estimate.
  7. L

    Master Projectile Graphing: How to Plot Displacement vs. Theta

    i have produced a graph vertical against horizontal distance. However when the projectile angle is closest to angle of 0 it goes the furthest,what is the problem here. Is the horizontal speed for projectile with drag remain Vcos(theta)?
  8. L

    Master Projectile Graphing: How to Plot Displacement vs. Theta

    no it isnt, i woud like to plot the angle against displacement, how hard is that to do? do i need to know the object mass and surface area (to work out Cd) to find it?
  9. L

    Master Projectile Graphing: How to Plot Displacement vs. Theta

    or how can i find the angle launched from a vertical vs horizontal displacement graph?
  10. L

    Master Projectile Graphing: How to Plot Displacement vs. Theta

    i used calculus to derive the equations knowing gravity and initial velocity and angle. for drag: I have calculated the horizontal and vertical distances but is there a way where i can combine these two and use theta in the equation to insert the projectile angle?
  11. L

    Master Projectile Graphing: How to Plot Displacement vs. Theta

    yes i mean total range, can anyone help me out? so basically I am looking foir an equation for total range of a projectile with drag
  12. L

    Master Projectile Graphing: How to Plot Displacement vs. Theta

    yes i mean total range, can anyone help me out? so basically I am looking foir an equation for total range of a projectile with drag
  13. L

    Master Projectile Graphing: How to Plot Displacement vs. Theta

    i know how to plot horizontal dispacement (x axis) against vertical displacement (y axis) but i want to plot displacement (x axis) vs theta (y axis)?
  14. L

    How can I calculate projectile distance with limited information?

    i am looking to find the projectile distance if an object (any object) was launched at 50 degrees considering the only information i know is u and v and theta (50) can someone help me out on the formula i need in order to calculate the range?
  15. L

    Engineering Measuring Current Flow Through Neutral Wire with Open Phase R

    so is 15.1 the correct answer, what explains the non zero value other than its unbalanced?
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