Spoilers Russell T. Davies Returns to Doctor Who as New Showrunner

[DigificWriter]

the whoverse audio universe is like a video games style sandbox world where since 1963 there are unlimited of stories with many different time lord doctors tons of companions billions of adventures that happen during off screen of the doctor who tv series episodes since 1963

i am pretty sure the time lord doctors and there companions has encountered the ranis and the masters tons of times in the audio universe over the years

The entire Doctor Who IP is one giant 'sandbox' because it has no Canon.

 

[camdudetenger2018]

The entire Doctor Who IP is one giant 'sandbox' because it has no Canon.

with no breaks and stops

 

[N-121973]

???
The exteriors of the submarines are very obvious models and the interiors clearly weren't actual submarine interiors (far too large). Perhaps you mean the scenes with the surface naval ships, which IIRC were stock footage of actual warships?

According to the making of documentary on the DVDs and Blu-Ray, some men showed up at the BBC and asked about where the VFX team got the submarine. They were told it was a model kit from Woolworths. So the story goes they made some changes to the model and one of the things they inadvertently did was make the propeller look like the ones on the real subs which was a secret at the time.