The Perlan Project's Grob G-520

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

Grob G.520 Photo Gallery

G 520NG - GROB AIRCRAFT SE

Perlan Project outfits Perlan 2 with new sensors, preps for 2021 flights, News

Unusual High-Altitude Spy Plane Appears at Special Operations Exercise

Grob G 520 Model Factory Direct Models

Grob G 520 - Wikipedia

Perlan Project outfits Perlan 2 with new sensors, preps for 2021 flights, News

Loveland family soaring to new heights to study the Earth's stratosphere – Loveland Reporter-Herald

Aircraft D-FSTN (Grob G-520 Egrett II C/N 10003) Photo by John Meneely (Photo ID: AC823327)