Welcome to On Verticality. This blog explores the innate human need to escape the surface of the earth, and our struggles to do so throughout history. If you’re new here, a good place to start is the Theory of Verticality section or the Introduction to Verticality. If you want to receive updates on what’s new with the blog, you can use the Subscribe page to sign up. Thanks for visiting!

Click to filter posts by the three main subjects for the blog : Architecture, Flight and Mountains.

Pierre Ferrand’s Corkscrew Airship
Examples Christopher James Botham Examples Christopher James Botham

Pierre Ferrand’s Corkscrew Airship

This is Pierre Ferrand de Montfermeil’s 1835 design for an airship, featuring a giant screw mechanism and an elaborate system of fins. Unfortunately details of the design are scarce, and this appears to be the only image we have. According to the authors of the book L’Aéronautique des origines à 1922, it originallt appeared in a brochure titled Projet pour le Direction de l'Aérostat par les Oppositions Utilisées, or Project for the Direction of Airships used by Oppositions.

Read More