Who knows what's under this section of a V21 ?

[garagenc]

[QUOTE=bgreene;185605]Does anyone know why there's a relatively small but isolated/ trapped hollow under the " floor" inside the transom battery and oil tank compartments ?

I mean below the floor that the battery and oil tank sit on - port and starboard rear of a V21.

This hollow doesn't empty into the bilge, and doesn't empty into the hull below the bilge........where the bottom screw out plug to the hull is either.


If it is as I believe - basically a " boxed in hollow" maybe Wellcraft did it to limit flooding if the floor drains did start to leak.

Youre right it's a air pocket to help with floatation, Some boat builders did this to help with floatation without weight from foam.