It is a permanent purchase and a very fun asset to have.

Thanks TSLordPred!

I'm getting a Sevastapol, which one should I get, the USN or the SN one? I have a high enough level crew for either one. 

which nation do you like more?

 if i remembered correctly, SN sevas goes faster and have slightly better range than the US one.  They are both deadly anyways with a high crew

If you for some reason find that you dislike the ship, DO NOT sell the ship because the creds and points you get back from it are TOO LOW to compensate what you spent in $$ for the olives...im surprised that hasnt been upped yet from when they were first released? Anyways, thats neither here nor there, just dont sell it....period.

get them both why pick :)

get the SN first