Talk:Aircraft Proficiency/@comment-204.232.99.163-20151030175458

"Converted plane models of famed air groups such as Suisei (Egusa Squadron) and Tenzan Model 12 (Tomonaga Squadron) will retain their original rank if it's higher than the default rank.[citation needed] The model conversion for Tenzan Model 12 (Murata Squadron) however, appears to either become downgraded by one rank or capped at triple gold stripes"

The new skilled planes lose down to lvl 2 when upgraded... I think that is completely Dev-rated Salt there.. I know its to prevent immediate progression down the rest of the assembly lines... but still..... it even requires an item to do... and you need >> to proceed to next step.... but anyhow....... salt over..... seems Egusa and Tomonaga were just special people.