Recent content by lukus09

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    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 im 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 im only looking a rough estimate.
  7. L

    Projectile graph help

    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)?
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    Projectile graph help

    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?
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    Projectile graph help

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

    Projectile graph help

    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?
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    Projectile graph help

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

    Projectile graph help

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

    Projectile graph help

    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

    Finding Projectile distance

    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?
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    Engineering 3 phase circuit

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