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#3560822 - 04/22/12 09:11 AM T-62 firing [Re: Krabb]
Krabb Offline
Member

Registered: 01/08/12
Posts: 147
T-62 has a stabilized horizontally and vertically main gun (and coax machinegun), which enables the gunner to track and fire on the move with significantly improved accuracy. To turn it on and off press N key.

Selecting a shell

The bar at the bottom right displays the selected shell, the status of "load" command and the number of available shells.



Keys:
1 - armor-piercing fin-stabilized discarding sabot tracer (APFSDS-T 3BM3),
2 - high-explosive anti-tank fin-stabilized (HEAT-FS 3BK4),
3 - high-explosive fragmentation fin-stabilized (HE-FRAG-FS 3OF11).

Pressing R key commands the loader to start loading until all shells are exhausted or until the cancellation command (by pressing R again).

Firing within battlesight range

For APFSDS-T 3BM3 battlesight range is 1900 m, for HEAT-FS 3BK4 and HE-FRAG-FS 3OF11 - 900 m.

Look in sights - V key, switch zoom - Tab, look closer - Backspace. Set battlesight range for the selected shell with mouse wheel or Page Up and Page Down keys (hold Shift for larger steps). Aim at the base of the visible target.



Determine the range using the stadia

At the bottom right of the sight there is range estimation stadia set for a 2.7 m high target (average tank). To determine the range to the target center the full height of the target between the stadia lines, so that it touches both lines. Read the range, in 100s of meters, on the upper stadia line where the top of the target touches the upper line. In this case the tank (the left one) is at about 1400 m.



Request the range from the commander

Hold Ctrl to show the cursor and click on the target. The commander will determine the range. Set it for the selected shell with mouse wheel or Page Up and Page Down keys. Aim at the center of the target. You can view the range determined by the commander on the marked icon. Blue triangle on "binocular" icon indicates that the commander sees the target and can determine the range.



Clicking on the target designates it for the entire platoon by default. To avoid this, press ` key (left of 1 and above Tab) and disable shared targets.



In poor visibility you can turn on a light filter - F and reticle highlight - H.





At night you are using TPN-1-41-11 sight, targets are illuminated by searchlight with IR filter. Reticle scale consists of the triangle and dashes, the screenshot indicates corresponding ranges (the first line is APFSDS-T 3BM3, the second - HEAT-FS 3BK4 and HE-FRAG-FS 3OF11, and the third - coax machinegun PKT).



Of course, the enemy can see the searchlight too, therefore you can turn it off by pressing ` key (left of 1 and above Tab) and prohibiting the firing (see screenshot). View through sights deteriorates significantly.



Fire from the gun - left click or Space, coax machinegun - right click or Q.


Edited by Krabb (11/29/12 12:05 PM)

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#3560841 - 04/22/12 10:06 AM Using the rangefinder on the M60 [Re: Krabb]
Krabb Offline
Member

Registered: 01/08/12
Posts: 147
M60 tank commander (F7) has the coincidence range finder, which combines accuracy with speed in determining range. Look in sights - V key, switch to the range finder - Z and C, look closer - Backspace. Switch to partial or full control of fire from the commander's place (marked icon) - key 5. By rotating the mouse wheel or by pressing Insert and Delete keys (hold Shift for larger steps) merge two target images, the range to the target will be determined automatically.





The range is displayed on the marked icon (the range designated to the gunner) and on the indicator to the right of the commander.



Edited by Krabb (11/29/12 12:07 PM)
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#3560927 - 04/22/12 01:13 PM Range determination using the mil-relation formula [Re: Krabb]
Krabb Offline
Member

Registered: 01/08/12
Posts: 147
In gunnery the unit of angular measurement is the mil. The mil is equal to 1/6400 of a circle (NATO; 1/6000 - ex-USSR). Mils facilitate easy and rapid conversion from angular units to linear, and vice versa, since the arc length corresponding to one mil equals one thousandth of the radius (distance to the target) at all distances. For example, at a distance of 500 m one mil equals 0.5 m, at 1 km - 1 m, 1.5 km - 1.5 m, etc. Knowing the size of the target and its visual angle, it is possible to determine the range to the target, or knowing the range and size, to determine the visual angle of the target, etc.

Code:
    H * 1000
D = --------
       A
where: D - range to the target in meters, A - scope size of the target in mils, H - height (width) of the target in meters.

In ex-USSR angles in mils are usually written in two groups: first group - hundreds of mils, the second - tens and ones. E.g., 1 mil is 0-01, 100 mils is 1-00, etc.



Example

Enemy tank, width 3.5 m, visible at angle about 0-04. Determine the distance.



Solution:

Code:
    H * 1000   3.5 * 1000
D = -------- = ---------- = 875 m.
       A            4

Reticles subtensions

T-62

Binocular


Commander's vision device TKN-3


Telescope sight TSh2B-41


Night sight TPN-1-41-11


Collimator sight K10-T (DShK)


M60

Binocular


Periscope nonballistic reticle M32


Telescope ballistic reticle M105D


Machinegun sight M28C (M85)


Range estimation tables

Code:
Mils              10       9       8       7       6       5       4       3       2       1
--------------------------------------------------------------------------------------------
T-62, T-55, BRDM-2, GAZ-66, M113A1//////////////////////////////////////////////////////////
Height 2,4 m     250     250     300     350     400     500     600     800    1200    2400
BMP-1, BTR-60///////////////////////////////////////////////////////////////////////////////
Height 2,2 m     200     250     300     300     350     450     550     750    1100    2200
M60A1///////////////////////////////////////////////////////////////////////////////////////
Height 3,2 m     300     350     400     450     550     650     800    1050    1600    3200
Chieftain Mk.5//////////////////////////////////////////////////////////////////////////////
Height 2,6 m     250     300     350     350     450     500     650     850    1300    2600
Olifant Mk IA///////////////////////////////////////////////////////////////////////////////
Height 3,6 m     350     400     450     500     600     700     900    1200    1800    3600
Ratel///////////////////////////////////////////////////////////////////////////////////////
Height 2,9 m     300     300     350     400     500     600     750     950    1450    2900
Man-sized target////////////////////////////////////////////////////////////////////////////
Height 1,7 m     150     200     200     250     300     350     450     550     850    1700
Single storey house/////////////////////////////////////////////////////////////////////////
Height 4,5 m     450     500     550     650     750     900    1150    1500    2250    4500
Telegraph post//////////////////////////////////////////////////////////////////////////////
Height 6 m       600     650     750     850    1000    1200    1500    2000    3000    6000


Code:
Mils              10       9       8       7       6       5       4       3       2       1
--------------------------------------------------------------------------------------------
T-62, T-55//////////////////////////////////////////////////////////////////////////////////
Length 6,6 m     650     750     850     950    1100    1300    1650    2200    3300    6600
Width 3,3 m      350     350     400     450     550     650     850    1100    1650    3300
BMP-1///////////////////////////////////////////////////////////////////////////////////////
Length 6,7 m     650     750     850     950    1100    1350    1700    2250    3350    6700
Width 2,9 m      300     300     350     400     500     600     750     950    1450    2900
BTR-60//////////////////////////////////////////////////////////////////////////////////////
Length 7,6 m     750     850     950    1100    1250    1500    1900    2550    3800    7600
Width 2,8 m      300     300     350     400     450     550     700     950    1400    2800
BRDM-2, GAZ-66//////////////////////////////////////////////////////////////////////////////
Length 5,8 m     600     650     750     850     950    1150    1450    1950    2900    5800
Width 2,4 m      250     250     300     350     400     500     600     800    1200    2400
M60A1, Chieftain Mk.5, Olifant Mk IA////////////////////////////////////////////////////////
Length 7,5 m     750     850     950    1050    1250    1500    1900    2500    3750    7500
Width 3,5 m      350     400     450     500     600     700     900    1150    1750    3500
M113A1//////////////////////////////////////////////////////////////////////////////////////
Length 4,9 m     500     550     600     700     800    1000    1250    1650    2450    4900
Width 2,7 m      250     300     350     400     450     550     700     900    1350    2700
Ratel///////////////////////////////////////////////////////////////////////////////////////
Length 7,2 m     700     800     900    1050    1200    1450    1800    2400    3600    7200
Width 2,5 m      250     300     300     350     400     500     650     850    1250    2500


Edited by Krabb (11/30/12 11:43 AM)
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#3560932 - 04/22/12 01:20 PM Tanks weak spots [Re: Krabb]
Krabb Offline
Member

Registered: 01/08/12
Posts: 147
Yellow - ammo
Red - fuel
Green - engine
Blue - transmission

T-55A


T-62


M60A1


Chieftain Mk 5


Olifant Mk 1A


Edited by Krabb (05/06/12 07:21 AM)
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#3561316 - 04/23/12 08:27 AM Re: Tanks weak spots [Re: Krabb]
skimbo Offline
Junior Member

Registered: 02/22/12
Posts: 96
Loc: UK
Brilliant Krabb - well done mate.

Going to study this a bit more in depth when I get home from work.

Skimbo
_________________________
Never open an umbrella in your trousers

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#3561339 - 04/23/12 09:20 AM Re: Tanks weak spots [Re: Krabb]
MaceUK33 Offline
Everything is true
Veteran

Registered: 01/10/05
Posts: 12185
Loc: Darlington, UK.
A tanks' weak spots are 4 or 5 squishy bags of blood inside... smile
_________________________
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#3561387 - 04/23/12 11:08 AM Re: Tanks weak spots [Re: Krabb]
Krabb Offline
Member

Registered: 01/08/12
Posts: 147
Then it'll be 3 or 4 bags. Who's fifth?

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#3561412 - 04/23/12 11:57 AM Re: Tanks weak spots [Re: Krabb]
MaceUK33 Offline
Everything is true
Veteran

Registered: 01/10/05
Posts: 12185
Loc: Darlington, UK.
Erm, someone they were giving a lift to.... smile
_________________________
Intel i7 920 2.66Ghz D0 OC'd to 3.40GHz | MSI GeForce GTX 660 Black Knight 2048MB GDDR5 | Samsung F3 1TB | Corsair 6GB DDR3 | Gigabyte EX58-UD3R Intel X58 | LG DVD±RW SATA DL RW | Corsair TX 650W ATX2.2 PSU | Antec 902 | Coolermaster V8 CPU Cooler | W7 HP 64 bit | 27" iiyama monitor | TM HOTAS Warthog #05225 | TM Cougar MFDs | Saitek Pro-flight combat pedals | Track IR 5

Falcon BMS | DCS A-10C | Flaming Cliffs 3 | RoF | BoB 2 2.12 | EECH 1.15 | ArmA 3

"A nugget of purest green!"

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#3561445 - 04/23/12 12:56 PM Re: Tanks weak spots [Re: Krabb]
Krabb Offline
Member

Registered: 01/08/12
Posts: 147
Yeah, i remembered Israeli movie "Lebanon". Their Sho't (if I'm not mistaken) had enough space first for killed soldier, then for a Phalangist, and then for Syrian captive. I guess Sho't (just as Centurion) uses its space not very efficiently. yep


Edited by Krabb (04/23/12 12:56 PM)
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#3561793 - 04/24/12 04:55 AM Re: Tanks weak spots [Re: Krabb]
skimbo Offline
Junior Member

Registered: 02/22/12
Posts: 96
Loc: UK
Hi Krabb

Is it possible to determine range somehow with the TPN-1-41-11 night sight as there is no range scale as per the daytime sight (i.e. the curved line going from 800 upward).

I find it quite strange that the TPN-1-41-11 sight goes up to 3000m yet you probably couldn't see that far with the IR night light - or could you?

Skimbo
_________________________
Never open an umbrella in your trousers

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