Some mammals can glide.
https://royalsocietypublishing.org/doi/10.1098/rsif.2012.0794
Unsteady glide with a highly-maneuverable patagium [1]
Short, steep drop followed by flattened out glide.
Glide angle: ~18~26 [deg]
Aspect Ratio: ~2~3
[1]
Low-aspect ratio wing can double as a decent parachute. [1]Â