
Lilium: Lilium is a new ultralight two-seater electric plane concept, designed by four German engineers.

Vertical take-off and landing: Its swiveling ducted fan engines would allow it to take off and land vertically, requiring only 15 square meters of flat land to do so.

Everyday aircraft: Co-owner Daniel Wiegand says, "Our goal is to develop an aircraft for use in everyday life. We are going for a plane that does not need the complex and expensive infrastructure of an airport."

Fair-weather flying: It's designed to only be flown in good weather conditions in daylight. It also needs uncongested airspace.

Maiden flight success: A prototype has undergone testing in Germany and proved its ability to transform from hover mode to forward flight mode in mid-air by tilting its 26 electric jet engines. The company is developing a five-seater air taxi version.

And the price tag?: There's no price as yet, but a release by the European Space Agency said it will be "far less than similar-sized aircraft of today and with much lower running costs."

New waves: Lilium is part of a fresh generation of design-led light aircraft shaking up an industry with new concepts -- like the Icon A5, pictured.

Foldable seaplane: Launched last year, the Icon A5 is a two-seat, foldable seaplane. It's so compact it fits in most car garages and can be towed behind a vehicle for overland transport.

Recreational aircraft: The Icon A5 is primarily a recreational aircraft. It can be flown by anyone with a sport pilot license.

Costs less than a house: The Icon A5's estimated price is $189,000, with a $2,000 deposit upon ordering.

Cobalt Valkyrie-X: The Cobalt Valkyrie-X is a piston-engined light aircraft designed by French-born California-based entrepreneur David Loury.

Not just a pretty design: The Valkyrie-X's main purpose is moving people over relatively long distances. It's capable of flying five people from London to most of Western Europe without refueling.

Costs less than a much nicer house: The Cobalt Valkyrie-X starts at $635,000 -- more for extras. You can order now for 2018 delivery.

Burt Rutan's SkiGull: Inventor and aviation legend Burt Rutan has developed the SkiGull, an amphibious seaplane with retractable skis.

Rutan's last creation?: "It will be the last time I design and build an airplane, since I want to enjoy this one for myself," says Rutan, 73. "I will explore the world with it, visiting the places you cannot easily get to any other way."



