[REQ] Making certain components non-repairable

[LukeFF]

One of the things that bugs me is how certain damaged components can be repaired without any issue at all, when in reality it was highly unlikely if, not impossible, for them to be repaired at sea. As I recall from AoD, these types of things could NOT be repaired at sea:

-Torpedo tube doors
-Dive planes
-Rudder
-Propellors / Propellor Shafts

Yet, in SH3/SH4, these types of things can be repaired with no issues at all. I had all of the above damage occur to my sub in a mission last night, and I watched in amazement as my crew repaired each item in a couple of hours flat. If they can be that efficient, what's the point of drydock? Just let the crew do all the work!

So, is there a way to make these items still vulnerable to damage and destruction, yet unable to be repaired by the crew? Image the added realism it would bring - torpedo doors jammed due to depth charge damage? Time to return to base! Dive planes damaged? Get ready for slower dive times!

So, how about it? Is there a way to do this?