Folding-Fin Aerial Rocket

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Folding-Fin Aerial Rocket" – news · newspapers · books · scholar · JSTOR (September 2008) (Learn how and when to remove this message)

Folding-Fin Aerial Rocket / Mighty Mouse
A Mighty Mouse rocket at Steven F. Udvar-Hazy Center in Virginia
Type	Air-to-air rocket, air-to-surface rocket
Place of origin	United States
Service history
Used by	United States military
Specifications
Diameter	2.75 inches (70 mm)
Warhead	various
Engine	Solid-fuel rocket
Guidance system	None

The Mk 4 Folding-Fin Aerial Rocket (FFAR), also known as "Mighty Mouse", is an unguided rocket used by United States military aircraft. It was 2.75 inches (70 mm) in diameter. Designed as an air-to-air weapon for interceptor aircraft to shoot down enemy bombers, it primarily saw service as an air-to-surface weapon. The FFAR has been developed into the modern Hydra 70 series, which is still in service.