Zero gyro shooting

Dorjun Driver · 02-25-13, 04:24 PM

This is the quick and not–so–dirty method I use. I've found it quite handy when the tactical situation gets chaotic.

Plug the formula into your fx-5000F or smart phone and Bob’s your uncle. Heck, grab a pack of Lucky’s, a cup a joe, whip out the old slip-stick and do it old school!

Don't let the trigonometry intimidate you. After a couple of patrols you may find yourself solving this in your head.

I hope you find it useful.

Carrollsue · 02-25-13, 06:50 PM

Yep, that's it

fireftr18 · 02-25-13, 08:23 PM

Thanks for all the work.

TorpX · 02-25-13, 09:51 PM

I see someone else has been putting their high school geometry to good use.

I like your diagram there. I assume the " fx-5000F " is your calculator. I have used my TI-85 very successfully since my SHCE days, but now, every time I want to add something to it, I have to find something to delete.

Dorjun Driver · 02-25-13, 10:30 PM

Quote:

Originally Posted by TorpX

I see someone else has been putting their high school geometry to good use.
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.
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There are some interesting hacks one may use to eliminate the above trig functions altogether. But seeing as this formula is only executed a couple of times per hour, the effort to include them far outweighed their utility.

Dignan · 03-05-13, 03:07 PM

Hey Dorjun. Do you know if the "asin" function is the same as "arcsin"? I'm trying to replicate your formula in a smartphone calculator and it only has an asin function. I'm not getting the correct solution in my tests and I'm wondering if this is why. Math was never my strength.

EDIT: another question... I am building my formula using letters for my variables. V for ship velocity, T for Torp speed. This seems to work fine but for track angle do I need to attach some trig function so the calculator knows its an angle and not a quantity? I've just been using "A" for track angle but I don't know if the formula is understanding this as an angle. Is this my problem by chance?

02-25-13, 04:24 PM	#1
Dorjun Driver Loader Join Date: Jul 2012 Location: The Upper Left Edge Posts: 81 Downloads: 77 Uploads: 0	Zero gyro shooting This is the quick and not–so–dirty method I use. I've found it quite handy when the tactical situation gets chaotic. Plug the formula into your fx-5000F or smart phone and Bob’s your uncle. Heck, grab a pack of Lucky’s, a cup a joe, whip out the old slip-stick and do it old school! Don't let the trigonometry intimidate you. After a couple of patrols you may find yourself solving this in your head. I hope you find it useful.

02-25-13, 06:50 PM	#2
Carrollsue Old man of the Sea Join Date: Oct 2009 Location: Imus, Philippenes Posts: 58 Downloads: 1288 Uploads: 0	YEP,yep, steel on steel Yep, that's it

02-25-13, 08:23 PM	#3
fireftr18 Ocean Warrior Join Date: Feb 2010 Location: Kentucky Posts: 2,528 Downloads: 77 Uploads: 0	Thanks for all the work. __________________ Of all the forms of Martial Arts, Karaoke causes the most pain!

02-25-13, 09:51 PM	#4
TorpX Silent Hunter Join Date: Sep 2010 Posts: 3,975 Downloads: 153 Uploads: 11	I see someone else has been putting their high school geometry to good use. I like your diagram there. I assume the " fx-5000F " is your calculator. I have used my TI-85 very successfully since my SHCE days, but now, every time I want to add something to it, I have to find something to delete.

03-05-13, 03:07 PM	#6
Dignan Seasoned Skipper Join Date: Mar 2008 Posts: 698 Downloads: 262 Uploads: 0	Hey Dorjun. Do you know if the "asin" function is the same as "arcsin"? I'm trying to replicate your formula in a smartphone calculator and it only has an asin function. I'm not getting the correct solution in my tests and I'm wondering if this is why. Math was never my strength. EDIT: another question... I am building my formula using letters for my variables. V for ship velocity, T for Torp speed. This seems to work fine but for track angle do I need to attach some trig function so the calculator knows its an angle and not a quantity? I've just been using "A" for track angle but I don't know if the formula is understanding this as an angle. Is this my problem by chance? __________________ Last edited by Dignan; 03-05-13 at 03:53 PM.