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Night Vision - 2/28/2016 8:17:11 AM

HeinzBaby

Posts: 174
Joined: 12/1/2014
From: WEST AUSTRALIA
Status: offline

From what I've read in the manual there are basically 3? kind of Night vision optics
Thermal Imaging (TI) systems
Night vision/Light Applification
Infrared (IR) sights - Long/short range
How are these played out in FPRD, ie. TI is passive, any unit radiating a heat sig. will be 'seen', where as the others..?

_____________________________

Heia Safari

Post #: 1

RE: Night Vision - 2/28/2016 3:05:53 PM

CapnDarwin

Posts: 8467
Joined: 2/12/2005
From: Newark, OH
Status: offline

From the manual (I know nobody reads these things

)

6.6.5.3 SENSOR LIST:
� Air Search Radar (ASR) � Unit can search for aircraft and helicopters with
radar.
� IR-S = Short Ranged IR Sights � Allows a unit to see out to about 500
meters in the dark.
� IR-L = Long Ranged IR Sights � Allows a unit to see out to about 1500
meters in the dark.
� NV = Night Vision-Light Amplification Sights � Allows a unit to see in the
dark very close to the same as daytime

Weather can still effect these values and reduce effectiveness.

_____________________________

OTS is looking forward to Southern Storm getting released!

Cap'n Darwin aka Jim Snyder
On Target Simulations LLC

(in reply to HeinzBaby)

Post #: 2

RE: Night Vision - 2/29/2016 2:44:43 AM

IronMikeGolf

Posts: 899
Joined: 3/19/2010
Status: offline

Don't get hung up on IR vs NV. The vast majority of these systems are image intensifiers based on photomultiplier tubes (see Starlight Scope). They are all passive, however, low levels of ambient light (moonless nights, overcast not near urban areas, etc) will drastically reduce the range at which targets can be detected and identified. Of greatest interest, of course, are tanks sights. Let's look at the TPN series. Ranges quoted are often for 100% illumination (moon's surface fully lit). The range of the sight can be increased by using battlefield illumination. This can be flares, searchlight (either visible or IR), even headlights. Visible and near infrared spectrum light both work. IR searchlight are mounted on fighting vehicles because, if you use a visible spectrum light, you can easily be effectively engaged using day sights. Regardless of illumination, there is an upper range limit. This is determined by the diameter of the optics and the magnification.

Soviet light amplification tank sights:
TPN-1: range 600 meters/800 meters with battlefield illumination
TPN 3 (Generation 1): 850 m/1200 m
TPN 3K (Gen 2): 1100 m/1200 m
TPN 3KS (Gen 3): 1200 m/1200 m

Let's look at night vision systems for US infantry platoons:
PVS-5: image intensifier goggles, detect troops and vehicles out to 150 m. Short range IR illuminator for map reading, etc (about 10 m range)
PVS-2: Gen 1 small arms sight, 300 m in starlight/400 m in moonlight
PVS-4: Gen 2 small arms sight, 400 m starlight/600 m moonlight
TVS-2: .50 cal MG or tripod mounted, 800 starlight/1000 m moonlight
TVS-5: .50 cal MG or tripod mounted, 1000 starlight/1200 m moonlight
PAS-7: Handheld thermal image viewer, troops 400 m/vehicles 1000 m
TAS-5: thermal sight for Dragon ATGM, detects vehicles at 2000,/identify vehicles at 1200 m

In the game, we simplify this plethora of equipment and capabilities into the above mentioned categories.

_____________________________

Jeff
Sua Sponte

(in reply to CapnDarwin)

Post #: 3