User:JKBodylski/sandbox2

PRANDTL-D
	<img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/84/PRANDTL_D_3c_on_bungee_during_launch_with_center_cover_and_FOSS.jpg/300px-PRANDTL_D_3c_on_bungee_during_launch_with_center_cover_and_FOSS.jpg" decoding="async" width="300" height="200" class="mw-file-element" data-file-width="3024" data-file-height="2016">
	PRANDTL-D 3c on bungee during launch
Role	Research UAV
National origin	United States
Manufacturer	NASA
Designer	Albion Bowers
First flight	2009
Produced	2010-2018

PRANDTL- D

Preliminary Research AerodyNamic Design To Lower Drag (PRANDTL-D) is a series of subscale research aircraft designed by Al Bowers at NASA Armstrong Flight Research Center to test applications of a Bell Shaped Lift Distribution (BSLD) based on Ludwig Prandtl's 1933 paper.

Specifications (PRANDTL-D 3c)

General characteristics

Wingspan: 25 ft 0 in (^{[convert: invalid number]})
Empty weight: ^{[convert: invalid number]} (12.7 kg)

Performance

Cruise speed: 21 mph (34 km/h, 18 kn)

Specifications (PRANDTL-D 2)

PRANDTL-D 2 in flight with research Alpha Beta vanes

General characteristics

Wingspan: 12 ft 4 in (^{[convert: invalid number]})
Wing area: 10.125 sq ft (0.9406 m²)
Empty weight: ^{[convert: invalid number]} (12.7 kg)

Performance

Cruise speed: 21 mph (34 km/h, 18 kn)