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jmr · 04-23-07, 05:29 PM

Well I'm feeling a bit more comfortable practicing your example in this thread but over in this thread you gave a different example where the difference in bearing checks was only 7 degrees. I'm having a bit of trouble duplicating your results for that problem.

For example, in the problem listed in this thread where the bearing difference is 20 degrees, I start by moving the hairline to 4 on D scale, slide the 20 mark on S until it's on top of 4 on D, count how many degrees I have between 4 and 7 on D scale which comes out to 17 degrees on the S scale - I'm off by 3 degrees. So move the hairline back to 4 on D and move the S scale 3 degrees which gives me 23 degrees on 4 and 43 degrees on 7. I now have 20 degrees between 4 and 7 and like you indicated I now have the AOB for those two bearing marks.

I'm just having trouble replicating those steps above to match up 7 degrees between the two bearing marks.

04-23-07, 05:29 PM	#45
jmr Commander Join Date: Sep 2004 Posts: 462 Downloads: 62 Uploads: 0	Well I'm feeling a bit more comfortable practicing your example in this thread but over in this thread you gave a different example where the difference in bearing checks was only 7 degrees. I'm having a bit of trouble duplicating your results for that problem. For example, in the problem listed in this thread where the bearing difference is 20 degrees, I start by moving the hairline to 4 on D scale, slide the 20 mark on S until it's on top of 4 on D, count how many degrees I have between 4 and 7 on D scale which comes out to 17 degrees on the S scale - I'm off by 3 degrees. So move the hairline back to 4 on D and move the S scale 3 degrees which gives me 23 degrees on 4 and 43 degrees on 7. I now have 20 degrees between 4 and 7 and like you indicated I now have the AOB for those two bearing marks. I'm just having trouble replicating those steps above to match up 7 degrees between the two bearing marks.