WWII aircraft invasion stripes were painted on the fuselages and wings of Allied aircraft to reduce the risk of friendly fire.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...1_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h...n_stripes1.jpg
https://s3-us-west-1.amazonaws.com/h...s_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h...2_fullsize.jpg
Previously:
https://www.homemadetools.net/forum/...806#post175135
https://www.homemadetools.net/forum/...450#post169846
https://www.homemadetools.net/forum/...864#post175375
https://www.homemadetools.net/forum/...478#post169951