Delta Kite Construction

Delta Kites, link Hang Gliders, are based on Rogallo's flexible wing. They are suitable for moderate breezes

• Hang gliders are based on the flexible kite wing designed in 1948 by Francis Rogallo, a NASA aeronautical engineer and in 1958 further developed by him into the 'parawing', a structure-less kite used to enable spacecraft to land.

Richard Miller flying his 'Bamboo Butterfly' hang glider

Rogallo-wing hang glider

Parawing to retrieve Gemini space capsules

NASA's Paresev glider (Para Wing Research Vehicle)