last time I noticed drop tanks only had 2 fins.
Not all had two fins. There are various designs and variations across the world. That "cap" just happens to look like a fuel cap.
A quick google search turned up this: https://tailspintopics.blogspot.com/2011/07/douglas-low-drag-external-fuel-tanks.html
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Ok truth be told, I found this but had no idea what it was, but I knew TRF would come through.
Thank you, now I know!
I didn't see anything from MSN, or at least, not directly. This is where I found the photo, along with an article about velcro:DING DING DING! You must have seen that quiz in the MSN news feeds also.
I didn't see anything from MSN, or at least, not directly. This is where I found the photo, along with an article about velcro:
So, what's this?
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That's the one - the Russian copy of the AIM-9. One of them got stuck up the tailpipe of a MiG which then made it back to base. The missile found its way to Russia, which copied the thing so exactly that you could literally swap parts between the AIM-9 and the AA-2.R-13, better known by its NATO designation of AA-2 Atoll.
The fin extensions to the nozzle are the giveaway on this....