An interesting article about a failed technology

[Diemos]

http://www.thedrive.com/the-war-zone/25166/this-a-10-warthog-ground-trainer-still-has-a-tickler-muzzle-device-on-its-cannon

 

Watch too the embedded video, especially the standby compass (as suggested by the author)!

[jonsky7]

Interesting read, thanks for posting

[eaglecash867]

The standby compass in the video is low on fluid, which is why the compass card spins when the gun is fired. You can make the card spin like that just by tapping on the compass case with your finger when there's no fluid in it. ;)

[Diemos]

I thought it looked a little low myself, but to see it foam up like a shaken soda can was impressive!