2.75-inch rockets

The 2.75-inch rocket family is the U.S. unguided 70 mm air-to-ground rocket line managed in modern form by General Dynamics Ordnance and Tactical Systems. Official product material describes it as a lightweight, multi-mission rocket family, and Navy AV-8B documentation lists 2.75-inch rockets among the Harrier's air-to-ground stores.

2.75-inch rockets, Unguided 2.75-inch rocket family, Munitions

Image source: US Army Latvia Hydra-70 article

Profile / Specs

Profile

Origin: United States
Built by: General Dynamics Ordnance and Tactical Systems
Type: Unguided 2.75-inch rocket family

air-launched fixed-wing helicopter-launched rocket unguided

Specifications

Caliber: 2.75 inches (70 mm)
Guidance: Unguided free-flight rocket
Role: Air-to-ground rocket family
Motor: Mk 66 MOD 4 rocket motor
Platforms: Rotary- and fixed-wing aircraft
Warheads: Unitary and cargo warheads

Carrier Aircraft

The AV-8B Harrier II fact file lists 2.75-inch rockets among the aircraft's air-to-ground stores.

Carrier

Carrier type

Carriage evidence

AV-8B Harrier II, Vertical/short takeoff and landing attack aircraft, Aircraft & UAVs

AV-8B Harrier II

V/STOL attack aircraft

The Navy AV-8B fact file lists 2.75-inch rockets among the Harrier's air-to-ground stores.

Sources: NHHC AV-8B PDF Fact File

Service And Conflict Use

Service History

In service: Fielded as a standard U.S. air-to-ground rocket family for rotary- and fixed-wing aircraft.

Media

2.75-inch rockets Videos

HYDRA-70 2.75-inch (70mm) Family of Rockets

2.75-inch rockets Images

2.75-inch rockets, Unguided 2.75-inch rocket family, Munitions - view 1 — Source: US Army Latvia Hydra-70 article

2.75-inch rockets, Unguided 2.75-inch rocket family, Munitions - view 2 — Source: US Army Latvia Hydra-70 article

2.75-inch rockets, Unguided 2.75-inch rocket family, Munitions - view 3 — Source: US Army Latvia Hydra-70 article

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Sources

HYDRA-70 RocketPublisher: General Dynamics Ordnance and Tactical Systems | Note: Supports the 2.75-inch / 70 mm Hydra-70 family description, the unguided air-to-ground role, launcher and aircraft context, and manufacturer background. | Accessed: 2026-06-27 US Army Latvia Hydra-70 articlePublisher: U.S. Army | Note: Supports the Hydra-70 family context and the public-domain image provenance for the rocket photos used on this page. | Accessed: 2026-06-27 NHHC AV-8B PDF Fact FilePublisher: Naval History and Heritage Command | Note: Supports the AV-8B Harrier II air-to-ground stores list that includes 2.75-inch rockets. | Accessed: 2026-06-27