Posted by: Paul M
« on: February 20, 2015, 03:03:54 AM »The formula for detection range versus target size is:
Detection_Range(Target_Size) = max_sensor_range*(Taget_Size/Sensor_Resolution)^2 if Target_Size < Sensor_Resolution
If Target_size >= Sensor_Resolution then Detection_Range = max_sensor_range
Using the example below:
MR77-R80 has: max_sensor_range = 77.3 m km
Sensor_Resolution = 80
Target it 750 tonnes or Target_Size 15
Detection_Range(15) = 77.3 * (15/80)^2 = 2.7 m km
For fun if the inbound target was a "typical" anti-ship missile (size = 0.6):
Detection_Range(0.6) = 77.3 * (0.6/80)^2 = 4 348 km (you will never see the missiles that kill you)
Using the new DD MR24-R15
Detection_Range(0.6) = 24.4*(0.6/15)^2 = 39 040 km (you are very much unlikely to see the missiles which will destroy this ship, it is safe to assume that the missiles will move >50 000 km per 5 s turn)
FACs are going to take around 20 points of damage to destroy, depending on their armour belt and so on. Also depends what you are using for a weapon. Likely it will take 2-4 missiles to remove their armour belt (assuming they have 2 layers) then the next missile is likely to destroy them or at the least mission kill them. Without an idea on the FAC it is harder to say, also take into account you have only a 1 in 3 chance to hit more or less so you need to fire 15 missiles to have a reasonable chance to destroy the FAC.
It is a good idea to always have a resolutiion 1 sensor on any military ship. Coupled with a reasonable passive detection system this gives you the best chance of knowing that you are targeted, and not just blowing up spontaneously.
Detection_Range(Target_Size) = max_sensor_range*(Taget_Size/Sensor_Resolution)^2 if Target_Size < Sensor_Resolution
If Target_size >= Sensor_Resolution then Detection_Range = max_sensor_range
Using the example below:
MR77-R80 has: max_sensor_range = 77.3 m km
Sensor_Resolution = 80
Target it 750 tonnes or Target_Size 15
Detection_Range(15) = 77.3 * (15/80)^2 = 2.7 m km
For fun if the inbound target was a "typical" anti-ship missile (size = 0.6):
Detection_Range(0.6) = 77.3 * (0.6/80)^2 = 4 348 km (you will never see the missiles that kill you)
Using the new DD MR24-R15
Detection_Range(0.6) = 24.4*(0.6/15)^2 = 39 040 km (you are very much unlikely to see the missiles which will destroy this ship, it is safe to assume that the missiles will move >50 000 km per 5 s turn)
FACs are going to take around 20 points of damage to destroy, depending on their armour belt and so on. Also depends what you are using for a weapon. Likely it will take 2-4 missiles to remove their armour belt (assuming they have 2 layers) then the next missile is likely to destroy them or at the least mission kill them. Without an idea on the FAC it is harder to say, also take into account you have only a 1 in 3 chance to hit more or less so you need to fire 15 missiles to have a reasonable chance to destroy the FAC.
It is a good idea to always have a resolutiion 1 sensor on any military ship. Coupled with a reasonable passive detection system this gives you the best chance of knowing that you are targeted, and not just blowing up spontaneously.