Focke-Achgelis Fa 330 – Fotografie & Video

Tá Focke-Achgelis Fa 330 Bachstelze (English: Wagtail) was a type of rotary-wing kite, known as a gyroglider or rotor kite. They were towed behind German U-boats during World War II to allow a lookout to see further.

Focke-Achgelis Fa 330 byl typ draka s rotačními křídly, známý jako gyroglider nebo rotorový drak. Byl vyvinut Německem během druhé světové války, aby poskytl ponorkám jednoduché a levné průzkumné zařízení. Fa 330 mohl být tažen za ponorkou rychlostí až 38 km/h (24 mph) a mohl dosáhnout výšky asi 120 m (400 stop). Pilot mohl ovládat náklon a náklon rotoru pomocí pedálů a ruční páky.
The Fa 330 had a three-bladed rotor with a diameter of 7.3 m (24 ft) and a steel-tube frame with a single-seat cockpit. The rotor was spun by the airstream and did not require an engine. The Fa 330 could be folded and stored in a watertight container on the deck of the submarine. About 200 units were built and used by the German Navy, but they proved to be of limited value due to their low speed, limited range, vulnerability to enemy fire, and dependence on weather conditions.