Which designation corresponds to 250 lb; GPS/INS + laser (dual-mode SDB)?

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Multiple Choice

Which designation corresponds to 250 lb; GPS/INS + laser (dual-mode SDB)?

Explanation:
The weight class points to the Small Diameter Bomb family, and the standard designation for a 250-pound guided bomb in that line is GBU-39/B. “GBU” stands for Guided Bomb Unit, the number 39 identifies the 250-lb class, and the “/B” suffix denotes the specific version in use. The other items refer to different weapons. GBU-53 is the SDB II, which adds a dual-mode seeker (GPS/INS plus infrared) rather than a laser mode. The AGM-114K2 is a Hellfire air-to-ground missile, a completely different type of weapon, and the AGM-179A JAGM is a multi-mode missile, not a 250-lb SDB. Therefore, the designation matching a 250-lb SDB with GPS/INS guidance is GBU-39/B.

The weight class points to the Small Diameter Bomb family, and the standard designation for a 250-pound guided bomb in that line is GBU-39/B. “GBU” stands for Guided Bomb Unit, the number 39 identifies the 250-lb class, and the “/B” suffix denotes the specific version in use.

The other items refer to different weapons. GBU-53 is the SDB II, which adds a dual-mode seeker (GPS/INS plus infrared) rather than a laser mode. The AGM-114K2 is a Hellfire air-to-ground missile, a completely different type of weapon, and the AGM-179A JAGM is a multi-mode missile, not a 250-lb SDB. Therefore, the designation matching a 250-lb SDB with GPS/INS guidance is GBU-39/B.

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