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STANAG 4569

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NATO AEP-55 STANAG 4569 is a NATO Standardization Agreement covering the standards for the "Protection Levels for Occupants of Logistic and Light Armored Vehicles".[1]

The standard covers strikes from kinetic energy, artillery and IED blasts.

Level 1

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Kinetic Energy

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7.62×51mm NATO Ball (Ball M80) at 30 meters with velocity 833 m/s[1][2]

5.56×45mm NATO Ball (SS109) at 30 meters with a velocity of 900 m/s

5.56×45mm NATO Ball (M193) at 30 meters with a velocity of 937 m/s

Protection against all three threats must be provided.

Grenade and Mine Blast

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Hand grenades, unexploded artillery fragmenting submunitions, and other small anti personnel explosive devices detonated under the vehicle.

Artillery

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20 mm FSP (simulating 155 mm threat) at 520 m/sec from a distance of 100 meters. (Due to very low probability of a large fragment retaining enough velocity at these distances, STANAG 4569 makes this optional.)[3]

Angle: azimuth 360°; elevation: 0–18°

Level 2

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Kinetic Energy

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7.62×39mm API BZ at 30 meters with 695 m/s[1]

Grenade and Mine Blast Threat

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6 kg (explosive mass) Blast AT Mine:
2a – Mine Explosion pressure activated under any wheel or track location.
2b – Mine Explosion under center.

Artillery

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155 mm High Explosive at 80 m

Angle: Azimuth 360°; elevation: 0–22°

Level 3

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Kinetic Energy

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7.62×51mm AP (WC core) at 30 meters with 930 m/s[1]

Angle: Azimuth 360°; elevation 0–30°

Composite Armor tested in accordance with STANAG 4569 Kinetic Energy Level 3 specifications.

Grenade and Mine Blast Threat

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8 kg (explosive mass) Blast AT Mine:
3a – Mine Explosion pressure activated under any wheel or track location.
3b – Mine Explosion under center.

Artillery

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155 mm High Explosive at 60 m

Angle: Azimuth 360°; elevation: 0–30°

Level 4

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Shooting tests against Polish uparmoured level 4 KTO Rosomak IFV

Kinetic Energy

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14.5×114mm AP / B32 at 200 meters with 911 m/s[1]

Angle: Azimuth 360°; elevation 0°

Artillery

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155 mm High Explosive at 30 m[4]

Grenade and Mine Blast Threat

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10 kg (explosive mass) Blast AT Mine:
4a – Mine Explosion pressure activated under any wheel or track location.
4b – Mine Explosion under center.

Level 5

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Kinetic Energy

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25 mm APDS-T (M791) or TLB 073 at 500 m with 1258 m/s[1]

Angle: Frontal arc to centreline: ± 30° sides included, elevation 0°

Artillery

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155 mm High Explosive at 25 m

Angle: Azimuth 360°; elevation: 0–90°

Level 6

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Kinetic Energy

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30 mm APFSDS or AP at 500 m[5]

Angle: Frontal arc to centreline: ± 30° sides included, elevation 0°

Artillery

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155 mm High Explosive at 10 m

Angle: Azimuth 360°; elevation: 0–90°

Sources

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  1. ^ a b c d e f "STANAG Ballistic Standards". CRAIG International Ballistics. Archived from the original on 18 April 2003. Retrieved 5 September 2024.
  2. ^ Article title
  3. ^ "STANAG 4569 Protection Levels".
  4. ^ Joint Light Tactical Vehicle (JLTV)
  5. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2015-07-17. Retrieved 2015-09-05.{{cite web}}: CS1 maint: archived copy as title (link)