Iona will be fitted with two wing bunkers for coal. Each bunker will be accessed through a bronze deck scuttle. The bunkers carry around 100 lbs of coal. We'll see some day how far that gets us ...
The bunker bulkhead is made out of mahogany marine ply 0.625" thick. The below photo shows it being fitted and mounted with temporary stainless screws. The bronze gates and slides are not yet in place.
I forget whether I mentioned earlier - the steering station is a standard Edson bulkhead mount. We had to re-machine the spindle for an antique wheel out of Greenock on the Clyde.
Once a gate on the bunker is raised, the coal will spill out on the deck plate. Here's another shot: