Sd.Kfz.251/9

Sd.Kfz.251/9

Panzerjäger I

Marder III

Sd.Kfz.251/9

Panzerjäger I

Marder III

Germany

I Rank

Battle rating:

AB	RB	SB
1.3	1.3	1.3

Class:

Tank destroyer

Research:3 000

Purchase:6 300

Show in game

Description

The m.Schütz.Pz.Wg. (Sd.Kfz.251/9) is a rank I German tank destroyer with a battle rating of 1.3 (AB/RB/SB). It was introduced in Update "Fire and Ice".

General info

Survivability and armour

Armourfront / side / back

Hull14 / 8 / 8

Turret14 / 8 / 0

Crew5 people

Visibility88 %

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	___ mm	___ mm Top ___ mm Bottom	___ mm	___ - ___ mm
Turret	___ - ___ mm Turret front ___ mm Gun mantlet	___ - ___ mm	___ - ___ mm	___ - ___ mm
Cupola	___ mm	___ mm	___ mm	___ mm

Notes:

Mobility

Speedforward / back

AB57 / 12 km/h

RB and SB53 / 11 km/h

Number of gears8 forward

2 back

Weight8.0 t

Engine power

AB191 hp

RB and SB100 hp

Power-to-weight ratio

AB23.9 hp/t

RB and SB12.5 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	57	12	8	_,___	191	__.__	23.88
Realistic	53	11		_,___	100	__.__	12.5

Modifications and economy

Repair costBasic → Reference

AB289 → 357

RB321 → 397

SB379 → 468

Total cost of modifications5 950

4 460

Talisman cost410

Crew training1 800

Experts6 300

Aces75

Research Aces135 000

Reward for battleAB / RB / SB

20 / 40 / 40 %

106 / 106 / 106 %

Modifications

Mobility	Protection	Firepower
Tracks Research: 400 Cost: 300 75 Suspension Research: 270 Cost: 200 50 Brake System Research: 270 Cost: 200 50 Filters Research: 370 Cost: 280 70 Transmission Research: 640 Cost: 480 120 Engine Research: 640 Cost: 480 120	Improved Parts Research: 400 Cost: 300 75 Improved FPE Research: 270 Cost: 200 50 Crew Replenishment Research: 370 Cost: 280 70	Horizontal Drive Research: 400 Cost: 300 75 75mm_kwk_37_40_HEAT_ammo_pack Research: 270 Cost: 200 50 Adjustment of Fire Research: 270 Cost: 200 50 75mm_ger_kwk37_Hl_C_HEAT_ammo_pack Research: 370 Cost: 280 70 Elevation Mechanism Research: 370 Cost: 280 70 75mm_ger_Smoke_ammo_pack Research: 640 Cost: 480 120

Armaments

Main armament

75 mm K51 L/24 cannon

Ammunition38 rounds

Reloadbasic crew → aces

4.3 → 3.3 s

Vertical guidance-10° / 16°

Horizontal guidance-14° / 14°

Give the reader information about the characteristics of the main gun. Assess its effectiveness in a battle based on the reloading speed, ballistics and the power of shells. Do not forget about the flexibility of the fire, that is how quickly the cannon can be aimed at the target, open fire on it and aim at another enemy. Add a link to the main article on the gun: {{main|Name of the weapon}}. Describe in general terms the ammunition available for the main gun. Give advice on how to use them and how to fill the ammunition storage.

75 mm K51 L/24					Turret rotation speed (°/s)					Reloading rate (seconds)
Mode	Capacity	Vertical	Horizontal	Stabilizer	Stock	Upgraded	Full	Expert	Aced	Stock	Full	Expert	Aced
Arcade	38	-10°/+16°	±14°	N/A	__._	__._	__._	__._	__._	_.__	_.__	_.__	_.__
Realistic					__._	__._	__._	__._	__._

Ammunition

The available ammunition offers a wide range of shells to engage all types of targets:

• K.Gr.rot Pz.: APCBC; a slow shell with explosive filler mass that will knock out any tank with a single shot but has an average penetration power.
• Hl.Gr 38B: HEAT; a shaped charge with good penetration and without penetration loss over distance. Only penetrates flat vertical surfaces but the post-penetration damage is very effective on open and lightly armoured vehicles.
• Hl.Gr 38C: HEAT; a shaped charge with increased penetration over the previous shell. Very useful against heavily armoured targets.
• Sprgr. 34: HE; useful for destroying open and lightly armoured vehicles.
• K.Gr.Rot Nb.: Smoke; useful to blind enemy vehicles that are too remote for you to disable so that you can progress towards objectives.

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
K.Gr.rot Pz.	APCBC	52	50	45	39	34	30
Hl.Gr 38B	HEAT	80	80	80	80	80	80
Hl.Gr 38C	HEAT	100	100	100	100	100	100
Sprgr. 34	HE	10	10	10	10	10	10

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (g)	Ricochet
							0%	50%	100%
K.Gr.rot Pz.	APCBC	385	6.78	1.2	14	102.4	48°	63°	71°
Hl.Gr 38B	HEAT	450	4.57	0.05	0.1	872.1	62°	69°	73°
Hl.Gr 38C	HEAT	450	4.8	0.05	0.1	875.5	62°	69°	73°
Sprgr. 34	HE	420	5.74	0	0.1	686	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)
K.Gr.Rot Nb.	423	6.2	13	5	20	50

Ammo racks

Ammo racks of the Sd.Kfz.251/9

Full ammo	1st rack empty	2nd rack empty	Visual discrepancy
38	33 (+5)	1 (+37)	No

Notes:

• Shells are modeled individually and disappear after having been shot or loaded.

Usage in battles

Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but instead give the reader food for thought. Describe the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).

Pros and cons

Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in a bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".

Pros:

Cons:

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.