Re: Questions RE: STRPG -
Originally posted by Tomcat
If a ship's deflectors are not activated, is the ship's Protection Rating still equal to that offered by the deflectors? If not what would the Rating be?
The Protection Rating with no shields is 5, with no Threshold - exactly the same as if the shields had been battered down to Strength 0, on Table 7.9 in the NG, or 1.20 in Starships. The only thing that would change this would be Hull Plating (in Starships).
Originally posted by Tomcat
Is TN 10 always the standard for attempting to detect a ship out to Extended range? I only read that that is what it is in the example ship combat section of the Narrator's Guide (Page 110 under Range), otherwise, there is no other clarification that I have seen.
Then in the Starfleet Ops manual, it is further explained (confusingly) as to what TN's to use to detect other ships at different emission settings... is there any clarification on SYS Ops (Sensors) other than table 7.2 of the Narrator's Guide for ship detection?
Here is what I know-
{snip!}
As you can see, it is a rather confusing mess. If anyone knows (i.e. Doug Burke) what standard TN we use at Extended range (and then I can see adding or subtracting appropriate modifiers), it would be a huge help?
Ok, first off, try to avoid confusion from Target Numbers (e.g. TN 10) and modifications to Target Numbers (+5 TN, -5 TN) 
It's easy to get lost in the way it's written.
This is how I understand it (Doug may correct me!):
Basically, the chance to detect another ship is TN 10 (in other words, dice roll +/- modifiers must equal 10 or better). This roll is made at Extended Range. (NG p110)
This roll is modified for sensors at the appropriate range category (check the sensors type in the ship statistics against table 9.7). Most sensor systems give no bonus at Extended Range. (NG p138)
Other modifiers may also apply for conditions, such as nebulae, damage and so on.
To cover your points:
1- A ship Running Silent has a +15 TN (per NG pg 103)
2- A ship running on Survey missions with all sensors active is easier to detect so it has a -10 TN (per SOM pg 6)
Both correct - note that these are TN modifiers, not TNs.
3- Ships chance to detect another at Long Range normally is a TN 15 (per SOM pg 6).
This is actually correct, but confusing! The range is irrelevant except for sensor system bonuses (see above). Using active sensors then applies a -5 TN, giving you a TN of 10, as mentioned below.
4- A ship with full active sensors gains a -5 TN at long range (per SOM pg 6)
See 3.
5- As soon as two opposing ships enter within extended range make a TN 10 sensors test (per NG pg 110-111)
Correct.
6- A cloaked ship with a class 1 Cloak has a rating or TN of 16
Cloaked ratings substitute directly for the base TN 10 - this is assuming the ship is actively looking. If not, add a +5 TN.
I think this is right!
Doug? Don?
Jon
"There are worlds out there where the sky is burning, where the sea is asleep and the rivers dream; people made of smoke and cities made of song.
Somewhere there's danger, somewhere there's injustice, and somewhere else the tea is getting cold. Come on, Ace, we've got work to do."
THE DOCTOR, "Survival" (Doctor Who)
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