AF D3

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A-10A Thunderbolt (Early)
This page is about the German barge AF D3. For the 88 mm version, see AF D1.
AF D3
germ_artilleriefahrprahm_typ_d3.png
GarageImage AF D3.jpg
AF D3
Research:89 000 Specs-Card-Exp.png
Purchase:300 000 Specs-Card-Lion.png
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Description

The D3-class, AF D3 (abbreviated as AF D3) is a rank IV German naval ferry barge with a battle rating of 3.3 (AB/RB/SB). It was introduced in Update 1.79 "Project X" in the fleet closed beta test. It is essentially the AF D1 equipped with a larger 105 mm cannons.

General info

Survivability and armour

Armourfront / side / back
Citadel0 / 40 / 0 mm
Main fire tower15 / 15 / 0 mm
Hull20 mm (steel)
Superstructure4 mm (steel)
Number of section6
Displacement440 t
Crew57 people

Although the armour doesn't cover the whole boat, the survivability is not that bad, as it is a very long boat with lots of empty space inside for shells to go through. It is thus important that enemies with rapid-firing guns do not get too close to the AF D3 as they can riddle the entire boat with shells and hit critical components through the armour.

Staying far from the enemies and attacking them with the 10.5 cm guns is the best way to improve the lifespan of the AF D3.

Mobility

Speedforward / back
AB23 / 11 km/h
RB20 / 10 km/h
Mobility Characteristics
Game Mode Upgrade Status Maximum Speed (km/h) Turn Time (s) Turn Radius (m)
Forward Reverse
AB Stock ___ ___
Upgraded 23 11
RB/SB Stock ___ ___
Upgraded 20 10

Like other German naval barges, the AF D3 has an abysmal top speed of just 20 km/h (RB) and very sluggish turn time. Due to the long hull design, the AF D3 has trouble navigating through various narrow passages and avoiding obstacles and incoming torpedoes.

Modifications and economy

Repair costBasic → Reference
AB4 229 → 5 362 Sl icon.png
RB6 501 → 8 243 Sl icon.png
Total cost of modifications90 900 Rp icon.png
156 300 Sl icon.png
Talisman cost1 700 Ge icon.png
Crew training87 000 Sl icon.png
Experts300 000 Sl icon.png
Aces1 100 Ge icon.png
Research Aces520 000 Rp icon.png
Reward for battleAB / RB / SB
160 / 210 / 100 % Sl icon.png
172 / 172 / 172 % Rp icon.png
Modifications
Seakeeping Unsinkability Firepower
Mods new ship hull.png
Dry-Docking
Research:
3 600 Rp icon.png
Cost:
6 200 Sl icon.png
180 Ge icon.png
Mods new ship rudder.png
Rudder Replacement
Research:
3 400 Rp icon.png
Cost:
5 800 Sl icon.png
170 Ge icon.png
Mods new ship screw.png
Propeller Replacement
Research:
4 500 Rp icon.png
Cost:
7 700 Sl icon.png
230 Ge icon.png
Mods new ship engine.png
Engine Maintenance
Research:
15 000 Rp icon.png
Cost:
26 000 Sl icon.png
760 Ge icon.png
Mods ship damage control crew.png
Damage Control Division
Research:
3 600 Rp icon.png
Cost:
6 200 Sl icon.png
180 Ge icon.png
Mods ship fire control crew.png
Fire Division
Research:
3 400 Rp icon.png
Cost:
5 800 Sl icon.png
170 Ge icon.png
Mods engine smoke screen system.png
Smokescreen
Research:
3 400 Rp icon.png
Cost:
5 800 Sl icon.png
170 Ge icon.png
Mods ship anti fragmentation protection.png
Shrapnel Protection
Research:
4 500 Rp icon.png
Cost:
7 700 Sl icon.png
230 Ge icon.png
Mods new ship pumps.png
New Pumps
Research:
15 000 Rp icon.png
Cost:
26 000 Sl icon.png
760 Ge icon.png
Mods new aa caliber turrets.png
Anti-Air Armament Targeting
Research:
3 600 Rp icon.png
Cost:
6 200 Sl icon.png
180 Ge icon.png
Mods he frag base fuse tank.png
105mm_germany_skc32_navy_base_fuse_he_ammo_pack
Research:
3 600 Rp icon.png
Cost:
6 200 Sl icon.png
180 Ge icon.png
Mods tank ammo.png
20 mm HET magazines
Research:
3 600 Rp icon.png
Cost:
6 200 Sl icon.png
180 Ge icon.png
Mods new aux caliber turrets.png
Auxiliary Armament Targeting
Research:
3 400 Rp icon.png
Cost:
5 800 Sl icon.png
170 Ge icon.png
Mods he frag dist fuse ship.png
105mm_germany_skc32_navy_dist_fuse_he_ammo_pack
Research:
3 400 Rp icon.png
Cost:
5 800 Sl icon.png
170 Ge icon.png
Mods tank ammo.png
20 mm APT magazines
Research:
3 400 Rp icon.png
Cost:
5 800 Sl icon.png
170 Ge icon.png
Mods new main caliber turrets.png
Primary Armament Targeting
Research:
4 500 Rp icon.png
Cost:
7 700 Sl icon.png
230 Ge icon.png
Mods ship rangefinder.png
Improved Rangefinder
Research:
4 500 Rp icon.png
Cost:
7 700 Sl icon.png
230 Ge icon.png
Mods depth charge.png
Depth Charges
Research:
4 500 Rp icon.png
Cost:
7 700 Sl icon.png
230 Ge icon.png

Armament

Primary armament

2 х Turret10.5 cm/45 SK C/32 cannon
Ammunition100 rounds
Vertical guidance-5° / 70°
Main article: SK C/32 (105 mm)

The AF D3 has two 105 mm SK C/32 turrets as its main armament, which is a direct improvement from the 88 mm FlaK from its predecessor. It has higher explosive mass and penetration, with a fast reload time of just 4.64 seconds. The main gun can fire the following ammo types: HE (effective against most targets), HE with base fuse (effective against armoured targets), and HE-TF (for anti-aircraft purposes). The barges can carry up to 200 shells in total.

Penetration statistics
Ammunition Type of
warhead
Penetration @ 0° Angle of Attack (mm)
1,000 m 2,500 m 5,000 m 7,500 m 10,000 m 15,000 m
Sprgr. L/4.4 Kpf.Z HE 20 20 20 20 20 20
Sprgr. L/4.4 Bd.Z HE 42 34 25 20 20 20
Sprgr. L/4.4 Zt.Z HE-TF 20 20 20 20 20 20
Shell details
Ammunition Type of
warhead
Velocity
(m/s)
Projectile
mass (kg)
Fuse delay
(s)
Fuse sensitivity
(mm)
Explosive mass
(TNT equivalent) (g)
Ricochet
0% 50% 100%
Sprgr. L/4.4 Kpf.Z HE 785 15.1 0 0.1 1,550 79° 80° 81°
Sprgr. L/4.4 Bd.Z HE 785 15.1 0.015 5 1,550 79° 80° 81°
Sprgr. L/4.4 Zt.Z HE-TF 785 15.1 0 0.1 1,550 79° 80° 81°

Secondary armament

2 х Turret4 x 2 cm/65 Flakvierling 38 automatic cannon
Ammunition8000 rounds
Belt capacity40 rounds
Fire rate480 shots/min
2 х Turret15 mm MG M38(t) machine gun
Ammunition2000 rounds
Belt capacity40 rounds
Fire rate300 shots/min

The AF D3 is equipped with two 20 mm Flakvierling AA guns placed at the bridge and stern each. On the SF40 Light, these guns proved to be very effective against most targets the AF D3 might have to face. Due to the gun placement and two fewer gun mounts than the SF40 Leichte, it is somewhat less effective due to less concentrated firepower. However, it is relatively easier to target, as the two gun mount were placed directly frontally and in the rear (as opposed to SF 40 Leichte's diamond placement), this allows the AF D3 to hit the target frontally with relative ease.

  • Universal: AP-T · AP · HEF-T · HEF
  • 20 mm HET magazines: HEF · HEF-T · HEF · AP
  • 20 mm APT magazines: AP · AP-T · AP · HEF

Penetration statistics
Ammunition Penetration @ 0° Angle of Attack (mm)
10 m 100 m 500 m 1,000 m 1,500 m 2,000 m
HEF-T 2 2 2 2 2 2
AP 36 35 27 20 15 11
AP-T 36 35 27 20 15 11
HEF 2 2 2 2 2 2
Shell details
Ammunition Velocity
(m/s)
Projectile
mass (kg)
Fuse delay
(m)
Fuse sensitivity
(mm)
Explosive mass
(TNT equivalent) (g)
Ricochet
0% 50% 100%
HEF-T 835 0.12 0 0.1 10.54 79° 80° 81°
AP 785 0.15 - - - 47° 60° 65°
AP-T 785 0.15 - - - 47° 60° 65°
HEF 835 0.12 0 0.1 10.54 79° 80° 81°

Anti-aircraft armament

Turret3.7 cm SK C/30 mounting
Ammunition2000 rounds
Main article: SK C/30 (37 mm)

A single 37 mm SK C/30 cannon is available in the anti-aircraft weapon slot for the AF D3.

3.7 cm SK C/30
Ammo capacity 2,000
Fire rate 30 rounds/minute
Reloading rate 2 seconds
Vertical guidance -10°/+80°
Horizontal guidance ±180°
Targeting speed 17°/s
Targeting vertical speed 13°/s

Additional armament

Setup 14 x WBD depth charge
Main article: WBD depth charge

There are 4 WBD depth charges on the boat. These can be used as a close range weapon, although they only drop behind in your wake.

Usage in battles

Similar to the AF D1, the AF D3 excels in a fire support role. Try to stay at long ranges, where the guns and armour work good together. At close range try to angle or peeking, the downside is you will only be able to use the frontal or rear guns.

Depending on the enemy your face, some weapons on the AF D3 might be better than the others. Uses the 105 mm guns is preferred against enemy at long range or a large and/or well-armored vessel to deal high damage, while the 20 mm can be reserved for close-range engagements against faster and more manoeuvrable enemy.

It might be tempting to do a broadside with the AF D3. Be advised, however, that the AF D3's side armour is flat and became very weak when not angled, coupled with terrible mobility, this made you exposed to all source of incoming fire, including torpedoes.

Players seeking to defeat the AF D3 will try to close in from a blind spot or when the AF D3 is occupied with other opponents. Use the secondary armaments to deal with these fast-moving boats, as the main 105 mm guns would be too slow to react to new, close-by threats.

Pros and cons

Pros:

  • 105 mm cannons are very effective against all kinds of targets, with high destructive power and quick reload time
  • 20 mm AA cannons are very useful against fast-moving targets and aircraft
  • Relatively good survivability when angled correctly
  • High crew count

Cons:

  • Terrible top speed and very sluggish to manoeuvre
  • Large, slow targets makes it very vulnerable against bombs, torpedoes, and rockets
  • In rough sea conditions, the 105 mm cannon's frontal line of fire can be obstructed by the 20 mm mounts
  • While thick, the armour is quite flat, thus rendering the barge vulnerable from the boardsides
  • Angling armour only allows some guns to be used in combat

History

A 1:100 scale model of the AF Type D landing barge, International Maritime Museum, Hamburg. Note the scale model of the MF Type A landing craft at the back for comparison.

The Artilleriefährprahm Typ D (Artillery Barge Type D) was a modified version of the Marinefährprahm Typ A (Marine Barge Type A), the largest landing craft class built by the Krigsmarine in World War II. Originally developed in 1941 for Operation Sea Lion, when the plan was cancelled, the barge found its usage in numerous roles it was originally not intended to throughout the war. Over 700 of the barges of various configuration was built.

AF Typ D

The AF D was a series of the Marinefährprahm Typ A modified into a makeship gunboat. The conversion usually varies depending on the shipyard and available materials. Typically, the barge is outfitted with two quadruple 20 mm anti-air cannon mounts, two single 88 mm flak cannons, and one 75 mm anti-air cannon. Although some barge were also outfitted with a 105 mm instead of 88 mm. The helm is moved forward close to the centre of the craft. The craft is often reinforced with armour around the superstructure and ammunition storage, and some have their bulwarks coated with 10 cm of concrete.

The AF D barges were primarily used as an escort and minelayer, towing along by other ships. Although some also found itself inland as an artillery support platform.

Media

Skins
Videos

See also

Related development

External links

Germany barges
Anti-air ferries  SF40 Light · SF40 Heavy
Naval ferry barges  AF D1 · AF D3