The Henschel GT-1200 used a low powered rocket
to extend the gliding range. When touching the water,
wings and empennages jettisoned, a more powerful
second rocket ignited in order to propel the device
underwater and, thanks to a magnetic fuse, automatically exploded when under the vessel's hull.
Technical data GT-1200
Structure: Metallic fuselage, wings and tail unit of wood.
Guidance system: Inertial, inside a container, located in the nose.
Powerplant: Two rockets of an unspecified type. Solid propellant.
Span: 4.2m / 13ft 1žin
Length: 7.35m / 24ft 1in
Height: 1.1m / 3ft 9žin
* The information above is reproduced from the "Die Geheimen
Wunderwaffen des III. Reiches" book by J.Miranda and P.Mercado.