Rochev

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Rank VI Israel | Premium | Golden Eagles
Merkava Mk.2D Pack
il_m109a1.png
GarageImage Rochev.jpg
Rochev
AB RB SB
6.3 6.3 6.3
Research:54 000 Specs-Card-Exp.png
Purchase:185 000 Specs-Card-Lion.png
Show in game

Description

The Rochev was the name given by the IDF to the M109 self-propelled howitzer gun. They received the M109 before the Yom Kippur War of 1973, and the nickname was associated with the variants from M109 to M109A2. Most of differences between all of these variants were internal and especially regarding the shell loading system. While the early M109 was used during the Yom Kippur War and Lebanon War of 1982, by the 2006 Lebanon War, only the longer barrel M109s with the new M185 cannon were still in service, with some field modifications to improve quality of life and or survivability of the crew, like extra machine guns or outside storage compartments.

Introduced in Update "Air Superiority", the M109A1 Rochev is very similar to the normal M109 in the Israeli tech tree. It features a new cannon specifically the M185 cannon that is of the same 155 mm calibre of the regular gun of the M109. This means that the penetration is not improved but the shows have actually a longer range and the higher speed so aiming is much easier with this vehicle. The addition of more machine guns increase the ability of this vehicle to deal with close air support and light attack planes like the P-51 and BF 109 that can be relatively easily destroyed with a precise shot of heavy machine gun. Still the tank has relatively poor survivability and the reload time is quite large, however the high explosive shell is powerful enough to deal with most MBTs if aimed properly. No need to mention that like tanks like the AML-90 and the AMX-13 stand very little chance against your high explosive shells since their lack of armour make them extremely vulnerable to this kind of projectiles.

General info

Survivability and armour

Armourfront / side / back
Hull32 / 32 / 32
Turret32 / 32 / 32
Crew6 people
Visibility96 %

Describe armour protection. Note the most well protected and key weak areas. Appreciate the layout of modules as well as the number and location of crew members. Is the level of armour protection sufficient, is the placement of modules helpful for survival in combat? If necessary use a visual template to indicate the most secure and weak zones of the armour.

Armour type:

Armour Front (Slope angle) Sides Rear Roof
Hull 32 mm (74°) Upper glacis
32 mm (19°) Transmission
32 mm 32 mm 32 mm
Turret 32 mm (24°) Turret front
32 mm (4°-11°) Gun mantlet
32 mm 32 mm 32 mm
Cupola 32 mm (0°) Cylindrical 32 mm 32 mm 32 mm

Notes:

Mobility

Speedforward / back
AB62 / 13 km/h
RB and SB57 / 12 km/h
Number of gears8 forward
4 back
Weight24.1 t
Engine power
AB773 hp
RB and SB405 hp
Power-to-weight ratio
AB32.1 hp/t
RB and SB16.8 hp/t

Write about the mobility of the ground vehicle. Estimate the specific power and manoeuvrability, as well as the maximum speed forwards and backwards.

Game Mode Max Speed (km/h) Weight (tons) Engine power (horsepower) Power-to-weight ratio (hp/ton)
Forward Reverse Stock Upgraded Stock Upgraded
Arcade 62 13 24.1 _,___ 773 __.__ 32.07
Realistic 57 12 _,___ 405 __.__ 16.8

Modifications and economy

Repair costBasic → Reference
AB3 148 → 3 894 Sl icon.png
RB3 601 → 4 454 Sl icon.png
SB4 887 → 6 045 Sl icon.png
Total cost of modifications47 000 Rp icon.png
85 900 Sl icon.png
Talisman cost1 500 Ge icon.png
Crew training52 000 Sl icon.png
Experts185 000 Sl icon.png
Aces710 Ge icon.png
Research Aces480 000 Rp icon.png
Reward for battleAB / RB / SB
110 / 180 / 230 % Sl icon.png
166 / 166 / 166 % Rp icon.png
Modifications
Mobility Protection Firepower
Mods new tank traks.png
Tracks
Research:
2 400 Rp icon.png
Cost:
4 400 Sl icon.png
125 Ge icon.png
Mods new tank suspension.png
Suspension
Research:
2 100 Rp icon.png
Cost:
3 800 Sl icon.png
110 Ge icon.png
Mods new tank break.png
Brake System
Research:
2 100 Rp icon.png
Cost:
3 800 Sl icon.png
110 Ge icon.png
Mods new tank filter.png
Filters
Research:
3 900 Rp icon.png
Cost:
7 100 Sl icon.png
200 Ge icon.png
Mods new tank transmission.png
Transmission
Research:
7 600 Rp icon.png
Cost:
14 000 Sl icon.png
400 Ge icon.png
Mods new tank engine.png
Engine
Research:
7 600 Rp icon.png
Cost:
14 000 Sl icon.png
400 Ge icon.png
Mods tank tool kit.png
Improved Parts
Research:
2 400 Rp icon.png
Cost:
4 400 Sl icon.png
125 Ge icon.png
Mods extinguisher.png
Improved FPE
Research:
2 100 Rp icon.png
Cost:
3 800 Sl icon.png
110 Ge icon.png
Mods tank reinforcement il.png
Crew Replenishment
Research:
3 900 Rp icon.png
Cost:
7 100 Sl icon.png
200 Ge icon.png
Mods new tank horizontal aiming.png
Horizontal Drive
Research:
2 400 Rp icon.png
Cost:
4 400 Sl icon.png
125 Ge icon.png
Mods tank ammo.png
155mm_M110_Smoke_ammo_pack
Research:
2 400 Rp icon.png
Cost:
4 400 Sl icon.png
125 Ge icon.png
Mods tank cannon.png
Adjustment of Fire
Research:
2 100 Rp icon.png
Cost:
3 800 Sl icon.png
110 Ge icon.png
Mods tank ammo.png
155mm_M107_HE_PF_ammo_pack
Research:
2 100 Rp icon.png
Cost:
3 800 Sl icon.png
110 Ge icon.png
Mods new tank vertical aiming.png
Elevation Mechanism
Research:
3 900 Rp icon.png
Cost:
7 100 Sl icon.png
200 Ge icon.png

Armaments

Main armament

155 mm M185 cannon
Ammunition28 rounds
First-order16 rounds
Reloadbasic crew → aces
17.3 → 13.3 s
Vertical guidance-3° / 75°
Main article: M185 (155 mm)

The 155 mm M185 is a decently competent weapon for its BR, compared to other artillery guns, it has the standard 155mm cannon. It lacks access to a proper HEAT shell, but the HE shell is powerful enough to deal with most threats. The cannon is not stabilized and thus it takes time to aim after a full stop.

155 mm M185 Turret rotation speed (°/s) Reloading rate (seconds)
Mode Capacity Vertical Horizontal Stabilizer Stock Upgraded Full Expert Aced Stock Full Expert Aced
Arcade 28 -3°/+75° ±180° - 9.7 13.4 16.3 18.0 19.1 17.29 15.30 14.10 13.30
Realistic 6.5 7.7 9.4 10.3 11.0

Ammunition

Penetration statistics
Ammunition Type of
warhead
Penetration @ 0° Angle of Attack (mm)
10 m 100 m 500 m 1,000 m 1,500 m 2,000 m
M107 HE 61 61 61 61 61 61
M107 (PF) HE-VT 61 61 61 61 61 61
Shell details
Ammunition Type of
warhead
Velocity
(m/s)
Projectile
mass (kg)
Fuse delay
(m)
Fuse sensitivity
(mm)
Explosive mass
(TNT equivalent) (kg)
Ricochet
0% 50% 100%
M107 HE 684 43.1 0.3 0.1 9.14 79° 80° 81°
Proximity-fused shell details
Ammunition Type of
warhead
Velocity
(m/s)
Projectile
mass (kg)
Fuse delay
(m)
Fuse sensitivity
(mm)
Arming
distance (m)
Trigger
radius (m)
Explosive mass
(TNT equivalent) (kg)
Ricochet
0% 50% 100%
M107 (PF) HE-VT 684 43.1 0 0 300 3 9.14 79° 80° 81°
Smoke shell characteristics
Ammunition Velocity
(m/s)
Projectile
mass (kg)
Screen radius
(m)
Screen deploy
time (s)
Screen hold
time (s)
Explosive mass
(TNT equivalent) (g)
M110 684 44.63 21 5 30 50

Ammo racks

Full
ammo
1st
rack empty
2nd
rack empty
3rd
rack empty
4th
rack empty
5th
rack empty
6th
rack empty
Visual
discrepancy
28 __ (+__) __ (+__) __ (+__) __ (+__) __ (+__) __ (+__) __

Machine guns

Ammunition1 000 rounds
Belt capacity200 rounds
Reloadbasic crew → aces
10.4 → 8.0 s
Fire rate575 shots/min

The machine guns in the Rochev consist of a 12.7mm M2HB and a 7.62mm M1919A4, this guns are not powerful enough to deal with ground targets and don't have enough power to deal with most aircrafts. However they can be used to some extent to destroy the tracks or tires of enemy vehicles.

12.7 mm M2HB
Mount Capacity (Belt) Fire rate Vertical Horizontal
___ (___) ___ __° __°
7.62 mm M1919A4
Mount Capacity (Belt) Fire rate Vertical Horizontal
___ (___) ___ __° __°

Usage in battles

The Rochev should be played like the regular M109. This means that, since it lacks the precision and the agility to be used as a frontline vehicle it works best in the back of your team and flanking under the cover of conventional main battle tanks.

The HE shell in the Rochev is powerful enough to deal with most enemies, however this comes at the cost of precision. You dont have a laser rangefinder or a stabilizer in your cannon. Thus if you want to attack enemy positions, be aware of your surroundings and try to hear the engine sounds coming from enemy tanks. Getting to a good position at the middle of the map or in the sides that allows you to have a good field of view is an excellent tactic with this vehicle, alternatively you can also defend a certain capture point, helping your team while they deal with the main enemy force.

Pros and cons

Pros:

  • Powerful 155mm HE shell, capable of dealing with most tanks
  • Decent mobility for an SPG
  • Access to smoke shells and a long range, useful to create smoke screens in the middle of the map
  • More machine guns compared to the previous M109
  • Longer range and thus easier aim, compared to the smaller barrel M109s

Cons:

  • Very little armour against anything higher than 20 mm shots
  • Crammed crew compartment, which translates to poor survivability
  • Low fire rate at less than 4 rounds per minute
  • No access to a stabilizer or dedicated anti tank shells

History

Describe the history of the creation and combat usage of the vehicle in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/History" (example: https://wiki.warthunder.com/(Vehicle-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref></ref>, as well as adding them at the end of the article with <references />. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under === In-game description ===, also if applicable).

Media

Excellent additions to the article would be video guides, screenshots from the game, and photos.

See also

Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:

  • reference to the series of the vehicles;
  • links to approximate analogues of other nations and research trees.

External links

Paste links to sources and external resources, such as:

  • topic on the official game forum;
  • other literature.


Israel tank destroyers
Artillery  M109 · Rochev
ATGM  Zachlam Tager · Giraf