Using this as a reference ...
https://commons.wikimedia.org/wiki/F...to;0821201.jpg
My sub (Balao) looks just like this. Its a late 1944 career.
I just read an article off fleetsubmarine.com that says the SJ was mounted on a retractable mast.
Odd, the only retractable mast I have is for the SD radar.
Am I missing something here? A special command to get the SJ to telescope?