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• tlw18@hotmail.com
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### tlw18@hotmail.com created the topic: ADF To/from Track

Track 132R
Track from ??
..
080-48 = 32
Now the question is is it a To or From
Page 27 of the irex book say that if the answer is in the top half it a TO. However on page 28, the answer is 32 From

Any help will be much appreciated

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### bobtait replied the topic: ADF To/from Track

If you are using the 'HAT' trick, 'to' or 'from' is determined by the starting point on the ADF dial. If you start at 000°R and move clockwise (+) to the ADF needle, you will obtain the value that must be added to the heading to obtain the 'TO' track. If you start at 180°R and move counterclockwise (-) to the ADF needle, you will obtain the value that must be subtracted from the heading to obtain the 'FROM' track.
In this case, the track TO is 212°M and the track FROM is 032°M.

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• tlw18@hotmail.com
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### tlw18@hotmail.com replied the topic: ADF To/from Track

Thanks for the explanation bob. Now I have moved on a bit and have some trouble with en route ADF indications. I can work out the drift and TMG but when it comes to working out which way the ADF needle will move I am getting all confused. Any assistance in this regard will be much appreciated.
For example, tracking from Bathurst to Mudgee W575, Held a heading of 350, What ADF indication will show the track is being maintained. AD1 tuned to Bathurst and ADF 2 to Mudgee.

I understand FPT = 345 HDG is 350, so the ADF indication will be 5 degrees either way. Now how do I work out if it will be 175 or 185 for ADF1 and the same for ADF 2