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# Zazl

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Thinking
1. ## Dart Trajectory

I think you are spot on mate, a combination of a greater release angle (from the darts COG perspective) and a slightly higher release speed the landing becomes level or slightly tail down. I have watched a slow motion video of his action and at the release point his dart seems to rise unexpectedly at this instance.
2. ## Dart Trajectory

Thanks mate, Just a point on lift: Would it be correct to say that the "lift" flight sector of the parabola is shorter (in time) as once released the dart is losing speed. This would make the remaining flight sector of the parabola longer (in time). Would this time difference in positive lift compared to negative lift actually make the dart drop more than it is lifted. Edit: After reflecting on the above this would only be the case if the launch speed was lower than 5.5 m/s. As most dart players throw at speeds a little higher, the positive lift flight sector would then become longer (in t
3. ## Dart Trajectory

Thanks again OceanBreeze, I often read when people talk about dart flights that a larger flight creates more lift, this implies that it affects trajectory, is this true or just another myth. I understand the concept of stability with flights and how they effect the angle that the dart arrives at the target,larger flights = greater upward angle as the dart strikes the board. I also believe that the flights effect stability by pivoting around the darts COG once released and that this effect can be adjusted by using larger flights (force) in conjunction with different length shafts (levers) a
4. ## Dart Trajectory

Can someone determine the effects of drag and its effect on trajectory of the two darts - 23.5g and 24.5g quoted in this thread, they both have an approximate longitudinal surface area of . 0.00046 square meters with a frontal surface area of approx. 0.00004 square meters. I have sourced this calculator https://www.desmos.com/calculator/on4xzwtdwz which calculates the effect of drag on a projectile, there are some parameters I am unsure of however. Using this calculator and the following inputs: Dart Weight = 23.5g Launch Angle = 20.2 degrees. Launch Speed = 5.6 1m/s Longtitudal Surface Ar

6. ## Dart Trajectory

While on the subject of dart trajectory would it be possible for members of this forum to offer a explanation as to what is the theoretical optimum dart throwing speed. Studies have suggested that this to be around 5.5m/s. Apparently our brain and muscle coordination can not operate with consistent accuracy when we throw at speeds greater than this. At the fraction of a second just prior to a dart reaching its target it is falling at a faster rate than its forward rate, (I think). I believe this faster rate starts once the peak of the parabolic trajectory curve is reached, is this correct? It
7. ## Dart Trajectory

In reply to DaveC The darts I purchased has 1 light dart, unless I mark this dart I have no idea which one it is, When I throw these darts I may throw the first dart a little high so I compensate by aiming the next dart a little lower. If the second dart was the light dart I should land this dart at the same point as the first, so I aim the third dart which is the other heavy dart lower, it should land lower than the second dart as my muscles and brain remember the last throw and try to compensate. This scenario does not take into account any inconsistency I have in my throw which compounds th
8. ## Dart Trajectory

Prior to asking for answers to this problem I found this online calculator https://www.desmos.com/calculator/gjnco6mzjo If this calculator had an additional weight setting slider ranging from 10 grams to 50 grams in .1g increments it would make my understanding of a darts trajectory complete. Would it be possible for this calculater be configured in this way?
9. ## Dart Trajectory

Thanks mate, your a legend. I have enough trouble throwing darts on the level so will give throwing them on a heaving ship a big miss! All the best.
10. ## Dart Trajectory

Thanks for your response OceanBreeze, these calculations are like a foreign language to me, the answers only will be much appreciated. Without knowing them I have absolutely no idea what effect a mismatched set of darts has when trying to throw consistently at a very small target area. Once again thanks for your time.
11. ## Dart Trajectory

Hi, I am a 65 year old dart player, When I was younger I was very good at maths, however in the last few years my mental capacity has diminished, I guess that is the reality of the aging process. My problem is that a set of 24gram darts I purchased has one dart that is 0.5 grams lighter and I need to know what effect it would have on hitting what I was aiming for. When throwing these darts I can not detect the weight difference so assume that I am throwing all three with the same force, if so then the lighter dart would have to hit higher than the other two darts. I do not know how to determin
12. ## Dart Trajectory

Could someone help with the following please: I have a theoretical dart throwing machine that launches darts weighing 24 grams at a height of 1730mm to a target situated at the same height 2000mm from the release point. The force used to propel the dart is constant and generates a launch speed of approximately 5.5 m/s and every dart hits the target exactly 1730mm high. My question is where will darts hit the target if they weigh 23.5 grams and 24.5 grams respectively if launched from my theoretical dart throwing machine without altering the force and angle settings used for a 24 gram dart.
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