Range on TDC (imperial). Is it yards? How to convert?

[Siinji30]

I play Imperial measurements.

I ID a target and measure range with the stadimeter. What´s the number I get in the TDC? Is it in yards? Feet?

If I want to plot the target on the map (using NO auto map updates), how do I convert this Feet/yard number to NM?

Solve this example for me:
I ID a cruiser. I measure range to 2234 in the TDC. How many NM´s is this? What´s the multiplier?

I remember something about the ruler-tool being faulty in SH3. Something about, at the point on the map where number on the ruler changed from, let´s say, 1.0 NM to 1.1 NM it was actually 1.05 NM, and NOT 1.1 NM. Is this bug still in the game?

[Krupp]

If you use imperial scale, you still get the stadimeter range in meters, game doesen't convert to yards. 2234 meters would be around 1.2 nautical miles (2443 yards).

you can use this converter program: http://www.squarerigged.nl/papa/dimen/conv.htm

[Siinji30]

Ooohh...that´s why things didn´t add up.

How about the ruler-bug. Does anyone know?

[Krupp]

Originally Posted by Siinji30

Ooohh...that´s why things didn´t add up.

How about the ruler-bug. Does anyone know?

Yes, it's there allright.

[WernerSobe]

its yards.

1nM = 2000 yards

[NefariousKoel]

Originally Posted by WernerSobe

its yards.

1nM = 2000 yards

Yeah... after the devs fix the tdc imperial problems.

Originally Posted by Siinji30

I remember something about the ruler-tool being faulty in SH3. Something about, at the point on the map where number on the ruler changed from, let´s say, 1.0 NM to 1.1 NM it was actually 1.05 NM, and NOT 1.1 NM. Is this bug still in the game?

I find that if you zoom ALL the way in, most decimal nm's will be marked by a small circle on the line your drawing. Those small circles look like they are placed correctly and you can then go by them. The range next to the line end changes when you extract the line, and seems to cover a larger "area" when it changes then just at the point.

i.e. it changes to 1.2 when over 1.15 and changes to 1.3 when over 1.25. So you could be 0.05 nm off to either side.

[maerean_m]

When using imperial measurement units:

the dial for range (top right of the screen) uses yards (as it says on the dial). The height of the enemy ship is measured in feet.

(with 1.2 patch) if you place the mouse over the displayed range in position keeper interface, a tooltip will apear telling you again that the range is measured in yards. So the range is always displayed in yards, as far as the TDC is concerned.

About the ruler-tool in the navigation map: it uses a single digit after the decimal separator so when the distance is 1.04 NM it would display 1.0 and when the distance is 1.06 NM it would display 1.1. The value of the nautical mile is an average, 1853.9948 meters. The value of the actual nautical mile is linked to the length of one degree of longitude which varies with latitude, but this is not easy to deal with, so an average is used.

[Donner]

Originally Posted by maerean_m

When using imperial measurement units:

the dial for range (top right of the screen) uses yards (as it says on the dial). The height of the enemy ship is measured in feet.

(with 1.2 patch) if you place the mouse over the displayed range in position keeper interface, a tooltip will apear telling you again that the range is measured in yards. So the range is always displayed in yards, as far as the TDC is concerned.

Unfortunately, Krupp has proven that the stadimeter and resulting range are worthless in Imperial scale. The data within the Japanese ships cfg and sim files are in metric which throws a wrench into the system when using imperial units. Apparently the game is not converting the measurements correctly.

I direct you to the following SH4 Mods thread JP Ship Dimension Fix and specifically to an illuminating discovery by Krupp in that thread.

[LukeFF]

Originally Posted by Donner

Unfortunately, Krupp has proven that the stadimeter and resulting range are worthless in Imperial scale. The data within the Japanese ships cfg and sim files are in metric which throws a wrench into the system when using imperial units. Apparently the game is not converting the measurements correctly.

Ah, so is this the reason why my torpedo attacks nearly always fail? I have set up numerous attacks on freighters sailing at 6 knots, had a good firing angle, good AoB, etc., yet WAY more often than not the torpedoes mysteriously miss time and time again (with the Mark 10 torpedoes). I've never really had a problem with manual firing solutions in SH3, so suffice it to say it's been quite frustrating seeing so many of my shots go astray in SH4.

I'm going to have to look into this fix and install it, until (hopefully) the devs fix the problem. Speaking of which, they are aware of this problem, correct?

[Donner]

Originally Posted by LukeFF

I'm going to have to look into this fix and install it, until (hopefully) the devs fix the problem. Speaking of which, they are aware of this problem, correct?

From my experience, metric system is corrected with Krupp's mod, but it hosed for those wishing to use imperial system since the cfg file is in metric. No conversions taking place.

No, I don't think the devs are aware of this problem.

[Bilge_Rat]

Originally Posted by LukeFF

Ah, so is this the reason why my torpedo attacks nearly always fail? I have set up numerous attacks on freighters sailing at 6 knots, had a good firing angle, good AoB, etc., yet WAY more often than not the torpedoes mysteriously miss time and time again (with the Mark 10 torpedoes). I've never really had a problem with manual firing solutions in SH3, so suffice it to say it's been quite frustrating seeing so many of my shots go astray in SH4.

I'm going to have to look into this fix and install it, until (hopefully) the devs fix the problem. Speaking of which, they are aware of this problem, correct?

I would not assume that is the only cause. In my newest 1.2 campaign, (totally vanilla unmodded game, very hard, 100% realism, asiatic fleet, dec. '41), after carefully calculating range, AOB and estimating speed using the Position Keeper and "Seat-of-the-Pants" feel based on SH3 experience, I fired 10 MK14 torpedoes at two freighters at ranges from 2,200 down to 1,200 yds/meters, 6 hit, so the manual TDC does work despite all the problems posters are pointing out, although I think the dud rate is probably too low during the early war period.


I also echo Don1reed's observations, I dont mind the inaccuracies that make life in SH4 a bit more difficult, such as imperial/meters conversion, recognition manual discrepancy, lack of sonar at PD, no push button way to calculate target speed, can't open all torpedo bay doors at once, etc. since WW2 skippers in RL often had no recognition manual to speak off and had to make up all this data on the fly. It serves as an immersion factor and it makes every kill that much sweeter when you have to sweat to achieve it, but then I am also abit of a curmodgeony old man in RL.

[don1reed]

Originally Posted by Siinji30

I play Imperial measurements.

I ID a target and measure range with the stadimeter. What´s the number I get in the TDC? Is it in yards? Feet?

If I want to plot the target on the map (using NO auto map updates), how do I convert this Feet/yard number to NM?

Solve this example for me:
I ID a cruiser. I measure range to 2234 in the TDC. How many NM´s is this? What´s the multiplier?

I remember something about the ruler-tool being faulty in SH3. Something about, at the point on the map where number on the ruler changed from, let´s say, 1.0 NM to 1.1 NM it was actually 1.05 NM, and NOT 1.1 NM. Is this bug still in the game?

To answer some your questions:

If you play using Imperial measure, the range indicator in the upper right corner of the the periscope/TBT screen is in yards.

What a lot of folks don't know about mariners that use the Imperial system in R/L, is this:

1] They round off a nm from 2026 yards to 2000 yards.
So... this means that every 10th of a nm = 200 yards, i.e.,

.1 nm = 200 yds.
.2 nm = 400 yds.
.3 nm = 600 yds.
.
.5 nm = 1000 yds.
.
.
.
.
1 nm = 2000 yds. pretty simple so far.


If you plot a target, (using the rule of 3 min. between two sights with Imperial), and you measure .6 nm with the ruler tool...the distance travelled = 1200 yds. Dividing by 100 gives you the speed of 12 knots.

With the Metric measure use the rule of 3 min. 15 sec.

1.1 nm = 2200 yds.

1.05 nm = 2100 yds.

...if memory serves me, isn't the ruler tool in SH3 in km...not nm?

...one more thing to take into consideration: Difference in 1940 technology compared to 2007. It just seems we're quibling about inches. It could be the Devs, giving them the respect they deserve, threw in a small taste of reality, or the unknown factor, to heighten the reality aspect? Not every WWII skipper returned home with 100K tons under his belt. Some actually missed, I'm told.

I, personally, am not looking for laser-like accuracy...just being able to hit the broad side of a barn is good enough for me.

Cheers,