United States Raytheon (RTX)
Mk 46
US lightweight anti-submarine torpedo widely fielded by NATO navies, air-dropped from maritime patrol aircraft and helicopters or fired from surface ship tubes.
Compiled from public sources ·primary reference ↗ ·last verified 2026-07-05
Procurement snapshot
Availability & export
US ITAR-controlled
Export needs U.S. State Dept (DDTC) approval; end-use & re-transfer restrictions apply.
Channel: Foreign Military Sales (FMS) or Direct Commercial Sale
Fielded & proven
Operator data not public
Status: active.
Lifecycle cost (est.)
No public unit price to model from. Why so few systems publish one →
Interoperability
No standardised NATO calibre / datalink detected in public specs.
Derived guidance from public data, export regime by country of origin, lifecycle from the GAO ~30% acquisition rule. Verify eligibility, pricing and offsets with the manufacturer and your acquisition authority.
Full specifications
Performance
Speed, range, altitude and engagement capability.
| Max speed Maximum level speed. For aircraft this is at optimal altitude; for ground vehicles, top road speed. Higher means faster response and better kinematic performance. | 74 km/h |
|---|
Firepower
Armament, payload and guidance.
| Caliber Bore diameter of the main gun or rifle. Larger throws heavier projectiles; not simply better, ammunition commonality matters. | 324 mm |
|---|---|
| Warhead Warhead mass. Heavier generally means larger effect radius, at the cost of range. | 44 kg |
| Warhead type Blast-fragmentation, shaped charge (HEAT), penetrator, thermobaric or nuclear-capable. | PBXN-103 high explosive (bulk charge) |
| Guidance How the weapon finds its target: inertial, GPS/GLONASS, active/semi-active radar, infrared, laser, TV, wire. | Active/passive acoustic homing |
Physical
Dimensions, weight and crew.
| Length Overall length including gun/probe where applicable. | 2.59 m |
|---|---|
| Combat weight Fully loaded weight. Lighter eases transport and bridging limits; heavier often means more armor. | 230 kg |
Munition
Round type, penetration, velocity and projectile data.
| Round type APFSDS (kinetic sabot), HEAT / multipurpose, HE-FRAG, canister or gun-launched ATGM. | torpedo |
|---|---|
| Effective range Practical engagement range of the round. | 11,000 m |
Specifications compiled from public Raytheon (RTX) and reference sources ↗. Published defense figures are approximations, treat comparisons as directional. Last verified 2026-07-05.
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What is the top speed of the Raytheon (RTX) Mk 46? +
The Raytheon (RTX) Mk 46 has a maximum speed of 74 km/h.
How much does the Raytheon (RTX) Mk 46 weigh? +
The Raytheon (RTX) Mk 46 has a combat weight of 230 kg.
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