GUNNER SIGHT IG46 FOR T-90
 

GENERAL:

Sight 1G46 has been designed for the gunner to bring down accurate and consistent aimed fire on both hard and soft targets by day using main gun 2MGM and Coaxial MG PKTM from stationary position and on the move, both on stationary and moving targets. The sight has also been integrated with the guided missile system 9K 119 to facilitate launch and guidance of the missile using same sight.

TECHNICAL CHARACTERISTICS
The major technical characteristics of the sight 1G46 are as under: -

(a)

Magnification of sighting channel

: 2.7X to 12X

(b)

Field of view

: 20° to 4.5°

(c)

Range finding limits

: 400 to 5000 m

(d)

Max range finding error

: 25 m maximum

(e)

Stabilization of FOV

: Independent, 2 axis

(f)

Angles of laying stabilized sighting line

(i) In elevation
(aa) Depression 15°
(ab) Elevation 20°
(ii) In azimuth
(aa) Independent ± 7°  to 9°
(ab) With turret 360°

(g)

Rate of sighting line laying in elevation and azimuth

(i)

Minimum rate, maximum

0.05° /s
(ii)

Maximum rate, minimum

3° /s

(h)

Rate of sighting line slew in azimuth

:16° to 24° /s

(i)

Weight

: 82 kg

(j)

Eyepiece setting range diopter

: 20 ± 4°

(k)

Stabilised sighting line drift

(i) Main Mode 12 mils/min maximum
(ii) Double Mode 16 mils/min maximum

(l)

Range of distance change due to movement

:± 500m

(m)

Wind velocity cross component measurement range

:0-25 m/sec

(n)

Gun trunion tilt measurement range

:± 15°

(o)

Considered charge and air temperature range

:± 50°C

(p)

Considered Pressure range

: 0.06 – 0.12 mm Hg

(q)

Considered gun barrel wear range

:3.5 mm

(r)

No of radiations per minute (Missile)

:6 Maximum

(s)

Preparation time

:3 minutes

(t)

Continuous operations (non combat)

:6 hrs
 
Contact :

Marketing & Export Division
Ordnance Factory Board
Ayudh Bhawan
Government of India
Ministry of Defence
10A, S. K. Bose Road, Kolkata – 700 001, India.

Tel: 0091-33-2248 9027 / 2248 2103 / 2248 5077-80
Fax : 0091-33-2248 1748/2210 8235
Mail : ofbtrade@dataone.in
www.ofb.gov.in