Manual techniques for measuring target ship speed

Bahger · 03-27-07, 12:41 PM

This is not primarily a question about timing methods, although I use the Imperial measurement scale and will soon be investigating the best "rule of thumb" approach.

What I'd like to know is this: What is the way to mark a contact on the nav chart? If I observe a contact through binoculars or periscope, what is the best way to obtain precise coordinates and get them down onto the nav chart? And is there any way to record the time of the sighting, too? I guess I have the same question about other sensor output, i.e. how to mark sonar or radar contacts on the nav chart but it seems to me that mark one eyeballs are the sensors of choice in sub ops of this era.

The object here is to wean myself off of auto map update but I'm some way off and I have to master speed calculations by marking progressive contact locations on the nav chart and timing them. As always, many thanks.

Liszt_ · 03-27-07, 12:43 PM

http://www.paulwasserman.net/SHIII/

Many of the techniques put together by Wazoo for SH3 are equally applicable to SH4.

tedhealy · 03-27-07, 01:15 PM

#1 get the bearing overlay mod from the mod forum.
#2 use the info at the link provided.

Bahger · 03-27-07, 02:58 PM

Great links, both, thank you. tedhealey, just checking, this is the mod you mean, right?

wetwarev7 · 03-27-07, 03:44 PM

Quote:

Originally Posted by Liszt_

http://www.paulwasserman.net/SHIII/

Many of the techniques put together by Wazoo for SH3 are equally applicable to SH4.

One thing though, distance was measured in km for SH3. In SH4, you can set it for imperial, which will measure distance(on the navmap) in nautical miles.

03-27-07, 12:41 PM	#1
Bahger Watch Join Date: Mar 2007 Location: Los Angeles, CA Posts: 27 Downloads: 0 Uploads: 0	Manual techniques for measuring target ship speed This is not primarily a question about timing methods, although I use the Imperial measurement scale and will soon be investigating the best "rule of thumb" approach. What I'd like to know is this: What is the way to mark a contact on the nav chart? If I observe a contact through binoculars or periscope, what is the best way to obtain precise coordinates and get them down onto the nav chart? And is there any way to record the time of the sighting, too? I guess I have the same question about other sensor output, i.e. how to mark sonar or radar contacts on the nav chart but it seems to me that mark one eyeballs are the sensors of choice in sub ops of this era. The object here is to wean myself off of auto map update but I'm some way off and I have to master speed calculations by marking progressive contact locations on the nav chart and timing them. As always, many thanks.

03-27-07, 12:43 PM	#2
Liszt_ Bosun Join Date: Apr 2005 Posts: 67 Downloads: 0 Uploads: 0	http://www.paulwasserman.net/SHIII/ Many of the techniques put together by Wazoo for SH3 are equally applicable to SH4.

03-27-07, 01:15 PM	#3
tedhealy Grey Wolf Join Date: Mar 2005 Location: St. Louis, MO, USA Posts: 772 Downloads: 13 Uploads: 0	#1 get the bearing overlay mod from the mod forum. #2 use the info at the link provided.

03-27-07, 02:58 PM	#4
Bahger Watch Join Date: Mar 2007 Location: Los Angeles, CA Posts: 27 Downloads: 0 Uploads: 0	Great links, both, thank you. tedhealey, just checking, this is the mod you mean, right?