The Perlan Project's Grob G-520

A repurposed high-altitude spy plane is launching gliders in Grand Forks, ND this week.

First Ever Tow with Egrett - The Perlan Project

Grob G520T - Poor Man's U2 : r/WeirdWings

Gliding the Polar Vortex – The Perlan II

Gliding the Polar Vortex – The Perlan II

Grob G.520 Photo Gallery

First Ever Tow with Egrett - The Perlan Project

The Perlan Project's Grob G-520

Perlan glider reaches 62,000ft for new record : : FLYER

First Ever Tow with Egrett - The Perlan Project

Born to spy

Duncan Aviation - Check this out! We had a record-setting