Vertical airship
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A vertical airship is a type of airship that is designed to fly vertically. Vertical airships also differ from conventional airships because they have better structural efficiency when carrying heavy loads. The shape and low speed also make it easy to fly low above urban areas . Airships are usually not very loud and the vertical airship is even better since it causes no noise pollution. Serious vertical airship development began in 1987 when the Vertical Airship Research and Development Organization(VARADO) was founded. Since then progress has been made and the potential of these upright leviathans has been realized.