From: Phillip E. Pournelle <pepourne@n...>
Date: Tue, 29 Jun 1999 22:51:31 -0700
Subject: Electronic Warfare
Hello, Below are some thoughts on how to expand the Electronic Warfare rules
from More Thrust. The means to detect another ship come in four flavors.
Passive detection of his engines, Passive detection of his active sensors,
Active sensors, Visually. Visual sensors are established on all ships. Any
ship, fighter, etc is automatically IDed, tracked and assessed when it comes
within 6 inches of an interested party. Large Facilitates like a Base can
double or triple this ability. Passive sensors can make an attempt to ID a
ship based on its engine signature. The effects of an engine burn are full if
the ship is accelerating away from the observer ( stern aspect), half if
orthogonal
to the observer (beam aspect) and 1/4 if accelerating towards the
observer (Bow Aspect). Passive Sensors can get at least a bearing on active
sensors, possible an ID, and even an estimated range. Active sensors can
possibly ID a ship at a long range.
Navigation Sensor operated by civilian ships modify the 1D6 roll by
-2
Standard Basic Military sensors modify the 1D6 roll by 0.
Enhanced Military sensors modify the 1D6 roll by +2.
Superior Military sensors modify the 1D6 roll by +4.
Modifiers:
-1 per 12 Measureing Unit (MU) between target and observer.
-1 per 5% of mass devoted to stealth by the observer.
-2 per ECM unit effectively jamming the observer. Note: Observer
automatically gets a line of Bearing towards the jamming unit.
+1 per 50 mass of the target.
+1 per thrust factor of target unit. Note: only applies to passive
detection of engines on ship and subject to modifications noted above.
+ 6 to passive detection of active sensor or ECM in use on target.
Roll Passive Sensor Active Sensor 3 Loose LOB Bogey 4 LOB Track
6 System ID/Mass Mass
8 Bogey ID
Loose LOB: Line of Bearing (LOB) based on engine exhaust/Sensor signal
accurate within 1D6 * 2 degrees. LOB: Accurate LOB towards contact.
System ID: If using passive systems against Enemy active system, then
a general statement of the system in question ("Enhanced Active Sensor used by
NAC.") Mass: Apparent mass of the target in question. This includes mass
spoofed using Weasel systems. Round up to the nearest 20 Mass. Bogey: A
general position of a target ("Captain, there is something out there...") Not
sufficient to fire upon. Accurate within 1D6 * 2 MUs of accuracy in any
direction. Track: A Fire Control quality track of a contact. ID: Actual Mass
of the contact, Fire Control Quality track, and general statement of the
target's design (military, cruiser, etc.) If you know this enemy, then the
class type.