Questions about the Four bearings method, etc. - Page 2

Pisces · 06-18-18, 03:34 PM

Could you provide links to the video that you watched? I think you use the bearing number between 0 and 180 as-is. As I think he needed the angle to his bow/course. But I hate to make a liar out of myself, so I better confirm. It's been a while since I watched them. And I don't know where it was. Probably Youtube!?

Spectre-63 · 06-18-18, 04:55 PM

Pisces:

http://www.subsim.com/radioroom/show...6&postcount=22

in fact, in Berbster's directions you'll see "Our ‘First Calculation’ will be 360 – 258 = 102 degrees on our ‘Left Side.’"

Pisces · 06-18-18, 05:04 PM

Yeah, because he is using protractors to draw the bearing lines, he has to point one leg to his course. The angle shown in the corner is always a positive number. So for port/left bearings he has to resort to calculate the remainder of the sonar bearing to 360. 360 degrees minus the bearing.

I just watched his SH5 hydrohunt tutorial ( ) where he has only starbord side targets. There he never does this subtraction. As it would basically be bearing-0. Which is trivial.

Spectre-63 · 06-18-18, 05:06 PM

Thanks Pisces - I thought that might've been the case but I seem to be making an SH5 career out of being wrong

06-18-18, 03:34 PM	#16
Pisces Silent Hunter Join Date: Dec 2004 Location: AN9771 Posts: 4,904 Downloads: 304 Uploads: 0	Could you provide links to the video that you watched? I think you use the bearing number between 0 and 180 as-is. As I think he needed the angle to his bow/course. But I hate to make a liar out of myself, so I better confirm. It's been a while since I watched them. And I don't know where it was. Probably Youtube!? Last edited by Pisces; 06-18-18 at 03:45 PM.

06-18-18, 04:55 PM	#17
Spectre-63 Medic Join Date: Jun 2003 Location: Boise, ID Posts: 159 Downloads: 42 Uploads: 0	Pisces: http://www.subsim.com/radioroom/show...6&postcount=22 in fact, in Berbster's directions you'll see "Our ‘First Calculation’ will be 360 – 258 = 102 degrees on our ‘Left Side.’" __________________ System specs:Ryzen 9 7900x, Gigabyte 4080

06-18-18, 05:06 PM	#19
Spectre-63 Medic Join Date: Jun 2003 Location: Boise, ID Posts: 159 Downloads: 42 Uploads: 0	Thanks Pisces - I thought that might've been the case but I seem to be making an SH5 career out of being wrong __________________ System specs:Ryzen 9 7900x, Gigabyte 4080

06-18-18, 05:04 PM	#18
Pisces Silent Hunter Join Date: Dec 2004 Location: AN9771 Posts: 4,904 Downloads: 304 Uploads: 0	Yeah, because he is using protractors to draw the bearing lines, he has to point one leg to his course. The angle shown in the corner is always a positive number. So for port/left bearings he has to resort to calculate the remainder of the sonar bearing to 360. 360 degrees minus the bearing. I just watched his SH5 hydrohunt tutorial ( ) where he has only starbord side targets. There he never does this subtraction. As it would basically be bearing-0. Which is trivial.