Need help with RAOBF calculation

Lymark · 02-27-19, 03:39 PM

I've recently started playing SH3 GWX for the first time(Yeah i know, only played SH4/5 before), been practicing manual TDC with the stationary tramp steamer in torpedo exam using RAOBF, and I've just realized that my range/AOB calculation has been very inaccurate even though the method is correct. I'll describe my issue with the following screenshot:

Tramp Steamer: ~800m, AOB:~36 from torpedo exam

To my understanding, getting range by multiplying mast height x2 is the nom here in SH3. However, in my case, that would result in the range being doubled. Even weirder, If I were to drag the 800m mark to the ship's length(78.5m) then read off the AOB based on center to bow length tick(7 ticks), AOB would be ~20 degrees off. Therefore, I now have to multiply the mast height after getting my range, instead of dragging the calculated range right away.

Not really a big deal, but I have been pulling my hair wondering why my math is different than everyone else. It also confuses me because I feel like I'm not doing it right.

I'm using 'ARB WideGui 1920x1080'(an improved version of Ahnenerbe's), and the only mod I think that might have an effect on this are both MFM and MFM's displacement correction mod.

Any help would be appreciated! Thank you!

bstanko6 · 02-27-19, 03:54 PM

Hope this helps. I have many more videos.

Things can throw off calculations like the bobbing of your boat or waves moving the ships around.

bstanko6 · 02-27-19, 05:21 PM

If you are using the RAOBF wheel, there is no reason to use math for anything. The answers are on the wheel. If you want to manually calculate range:

Lymark · 02-28-19, 02:21 AM

Quote:

Originally Posted by bstanko6

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Hope this helps. I have many more videos.

Alright, I see where the problem lies after watching your video. With the widescreen mod, I've been told to multiply the mast height and only use half the ship length for AOB. However, you didn't do either of that, I managed to get the right numbers now following what you did.

I swear these widescreen mods that alter zoom or the way RAOBF works confuse me so much, but at least it's solved.

Thanks for the help

02-27-19, 03:39 PM	#1
Lymark Swabbie Join Date: Jul 2012 Location: Hong Kong Posts: 11 Downloads: 96 Uploads: 0	Need help with RAOBF calculation[Solved] I've recently started playing SH3 GWX for the first time(Yeah i know, only played SH4/5 before), been practicing manual TDC with the stationary tramp steamer in torpedo exam using RAOBF, and I've just realized that my range/AOB calculation has been very inaccurate even though the method is correct. I'll describe my issue with the following screenshot: Tramp Steamer: ~800m, AOB:~36 from torpedo exam To my understanding, getting range by multiplying mast height x2 is the nom here in SH3. However, in my case, that would result in the range being doubled. Even weirder, If I were to drag the 800m mark to the ship's length(78.5m) then read off the AOB based on center to bow length tick(7 ticks), AOB would be ~20 degrees off. Therefore, I now have to multiply the mast height after getting my range, instead of dragging the calculated range right away. Not really a big deal, but I have been pulling my hair wondering why my math is different than everyone else. It also confuses me because I feel like I'm not doing it right. I'm using 'ARB WideGui 1920x1080'(an improved version of Ahnenerbe's), and the only mod I think that might have an effect on this are both MFM and MFM's displacement correction mod. Any help would be appreciated! Thank you! Last edited by Lymark; 02-28-19 at 02:22 AM.

02-27-19, 03:54 PM	#2
bstanko6 Admiral Join Date: Feb 2015 Location: Murwik Naval Academy Posts: 2,122 Downloads: 390 Uploads: 13	Hope this helps. I have many more videos. Things can throw off calculations like the bobbing of your boat or waves moving the ships around.

02-27-19, 05:21 PM	#3
bstanko6 Admiral Join Date: Feb 2015 Location: Murwik Naval Academy Posts: 2,122 Downloads: 390 Uploads: 13	If you are using the RAOBF wheel, there is no reason to use math for anything. The answers are on the wheel. If you want to manually calculate range: