Cox Powered Pair of Corsairs

First off, apologies if these are not Corsairs, I am sure I found ones like this online which confirmed to me they were, but can't seem to find them now anywhere.

Both of these look to be complete. the engines both spin pretty freely, but don't know if it is worth giving them a quick rebuild as they haven't been run for most likely many years?

I shouldn't think it will take much to get these flying. Put together, some control wire and fresh fuel and i think we should be good to go!

The Blue plane is definitely a Cox Corsair.
The camouflage painted one  is definitely NOT a Cox, but a Testors model. You can tell by the engine and the way the “engine cowling “ attaches and holds the engine in. The wing that goes with it looks a lot the the Testors “Cosmic Wind” wing.The fuse also looks a lot the the Cosmic Wind,  but yours has that camo paint job. Possibly painted by the previous owner.?
Here is one with the “zip starter”