WeaponSpecs
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Rafael Advanced Defense Systems

Derby

An Israeli active-radar-homing, beyond-visual-range air-to-air missile that also doubles as a surface-launched interceptor in the SPYDER air-defense system. It gives Rafael customers a fire-and-forget BVR option independent of US or European suppliers.

In service since 1998

Compiled from public sources ·primary reference ↗ ·last verified 2026-07-02

65

km range

4

Mach

118

kg warhead

Pricing: Unit cost not publicly disclosed

Procurement snapshot

Availability & export

Israeli export-licensed

Israeli MoD (DECA/SIBAT) licensing; active export programme.

Channel: Direct commercial / G2G

Fielded & proven

Operator data not public

In service since 1998. Status: active.

Lifecycle cost (est.)

No public unit price to model from.

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 (Mach)

Maximum speed as a multiple of the speed of sound. Mach 2+ is typical for air-superiority fighters.

4 Mach
Stronger than 71% of missiles
Range

Maximum distance: ferry range for aircraft, operational range for vehicles, maximum engagement distance for missiles. Higher means more standoff or persistence.

65 km
Stronger than 32% of missiles

Firepower

Armament, payload and guidance.

Warhead

Warhead mass. Heavier generally means larger effect radius, at the cost of range.

118 kg
Stronger than 39% of missiles
Warhead type

Blast-fragmentation, shaped charge (HEAT), penetrator, thermobaric or nuclear-capable.

Blast-fragmentation, proximity fuze
Guidance

How the weapon finds its target: inertial, GPS/GLONASS, active/semi-active radar, infrared, laser, TV, wire.

Active radar homing, Inertial navigation with mid-course update

Physical

Dimensions, weight and crew.

Length

Overall length including gun/probe where applicable.

3.6 m
Combat weight

Fully loaded weight. Lighter eases transport and bridging limits; heavier often means more armor.

118 kg

Propulsion

Engine, power and fuel.

Propulsion type

Turbofan, turboshaft, diesel, gas turbine, solid-fuel rocket, ramjet…

Solid-fuel rocket

Specifications compiled from public Rafael Advanced Defense Systems and reference sources ↗. Published defense figures are approximations — treat comparisons as directional. Last verified 2026-07-02.

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Frequently asked questions

What is the range of the Rafael Advanced Defense Systems Derby? +

The Rafael Advanced Defense Systems Derby has a maximum range of 65 km.

How much does the Rafael Advanced Defense Systems Derby weigh? +

The Rafael Advanced Defense Systems Derby has a combat weight of 118 kg.

What is the Rafael Advanced Defense Systems Derby used for? +

The Rafael Advanced Defense Systems Derby is a missile typically used for air superiority.

How much does the Rafael Advanced Defense Systems Derby cost? +

Rafael Advanced Defense Systems Derby: Unit cost not publicly disclosed. Defense program costs are rarely fully public and vary by contract and configuration.

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