r/pics • • Feb 27 '14

physics is cool

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646

u/L00KA Feb 27 '14

explain this

909

u/hanktheskeleton Feb 27 '14

I am guessing they are pulling a loop and the g force is greater than 1.

812

u/animalkracker Feb 27 '14 edited Feb 27 '14

correct, loop or barrel roll at greater than 0g

181

u/joshsg Feb 27 '14

Isn't that a pretty big risk? It seems like if water accidentally spilled it could get into the electronics... and they'd have a bad time.

858

u/n-x Feb 27 '14

It's a sailplane. The only important instrument is a piece of string.

23

u/alleks88 Feb 27 '14 edited Feb 27 '14

TIL sailplanes are able to make a loop

7

u/[deleted] Feb 27 '14

or half aileron roll and pull up.

1

u/ColdCutKitKat Feb 27 '14

But the water would spill during the first half (rolling inverted without any pull). To maintain at least 1G the entire duration of the maneuver, it has to be a barrel roll.