PPRuNe Forums - View Single Post - Those streams of 'white' trailing smoke from Commercial Jets in Blue Sky...Vortices?
Old 12th June 2015 | 19:02
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Stanwell
 
Joined: Jun 2014
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From: eastcoastoz
Yeah, I see a number of those old planes getting around.
They'll probably need bearings as well as a ring job.

In the meantime, a can of STP helps, I believe.
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