Speed/Distance Graph

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Deck Landing
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Speed/Distance Graph

Postby Deck Landing » Mon Nov 20, 2006 11:17 am

Does anybody have a copy of that Speed/Distance graph, the one where the lines taper in and you use it for chart work and it has the lower airspeeds so you can use it for microlights. I have a photocopy that is fadding fast and i need it in a printer/computer format so i can copy it, if you know what i mean! (I dont)
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Junkie
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Postby Junkie » Mon Nov 20, 2006 6:14 pm

Show me a pici of yrs and ill see if ive got un
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Deck Landing
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Postby Deck Landing » Mon Nov 20, 2006 7:05 pm

OK i will see if i can scan it and send it to you
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Morph
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Postby Morph » Tue Nov 21, 2006 6:36 am

These are very easy to make

1. go to the CNA and buy some graph paper
2. Hold the paper in portrait mode
3. Along the bottom mark out the minutes in 10 minute intervals using the left bottom corner as 0 minutes and moving right. You can decide on this scale, i.e. every 10th mark =10min or every 5th mark, your choice but the wider the beter
4. Take your 1:500000 or the 1:1000000 aviation map and at the bottom you will see the scale. Take the scale that you would use, i.e. Statute miles if you fly mph or Nautical miles if you fly in knots. Either measure 10miles or even easier fold the map along the scale. Now as if you are going to use the scale as a ruler place it vertically on the graph paper at the 60minute line. Starting from the bottom mark the different lines 40mph, 50mph, 60mph, depending on how fast you would fly.
6. Draw lines from the bottom left corner through each of these marks and mark them according to the speeds. You could even put the midway marks in for every 5 mph

Now you have a scale that you can superimpose on the map. To determine how far you would go in 10minutes, fold the scale at that time, lay it down on the map along your route, and select the line that represents the ground speed you will be flying at.

BTW
1:500,000
1 mile = 3.21868mm
10miles = 32.1868mm

1:1,000,000
1 mile = 1.60934mm
10miles = 16,0934mm

Now you have a scale you can use on the map.
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