So I finally decided to tackle the number 3 turret and the seaplane catapult since I had the tripod mast assembly to work with and see how things would play out. The first thing I noticed right away is that Trumpeter cheated a bit, instead of designing the catapult to sit at an angle, they instead created the PE parts as sitting straight with the edge of the turret. Blueprints show that the angle wasn't severe, but it also wasn't straight.
What also became apparent from both the blueprints and looking at reference photos is that there isn't supposed to be a deck railing at the end of the 02 deck where the catapult overhangs. This makes sense, the angled back of the catapult has to clear this area and it can't do it if the railings and floater net baskets that were added in Step 28 are in place. Trumpeter's additional cheat for this is to just have the turret installed rotated at an angle so that it's not a problem!
I didn't like that though as it spoils the alignment and clean lines of the ship. There's also the accuracy issue in that unless the ship was launching a seaplane, the normal position would be for the turret to be lined with the others and the guns centered on the deck. That meant my first order of business was to see just how bad the clearance issue was, so I bent the main part of the PE catapult into shape so I could check it. A word of caution here, it's important to bend the sides down on the correct side so that the angled supports sit properly on the front of the turret. Ask me how I know it's possible to do it the wrong way...
As you can see, the turret can almost, but not quite, sit at the correct angle. Those pesky railings are in the way...and it's not enough to just remove the floater net baskets either. The whole section has to go.
Fortunately, I was sparing with the CA when I installed those railings, so I was able to pop them off without damaging the deck. Voila! Now the catapult will clear the 02 deck and the turret can align straight as intended.
Step 32 deals with the all the different catapult components to the base I'd been working with. I used some Gator Grip extra thin to mount the front extension as it has to sit just so to line up properly and I wanted a little extra flexibility there. The rear railings were added with regular CA. The PE part that goes around the base of the turret includes a ladder that leads up to the catapult itself and this is very delicate. Why Trumpeter included it as a one-piece instead of a separate ladder is a little strange, but I guess someone felt this was the best way to go. The ladder has to be nearly vertical in order to match up correctly with the little side railing piece too, making it a real exercise in patience.
Now the moment of truth, I used the same method as with the other turrets to replace the plastic barrels with the Master aluminum barrels. It's a tight fit but the barrels do clear the catapult properly and everything plays nice together.
A quick check with the turret in position shows how tight everything fits together in this area along with the tripod mast. Not a lot of room for mistakes!
All of the turret parts, including the catapult, are just dry-fit now so that they can be painted separately to incorporate them into the Measure 22 scheme. It's definitely 'special' when compared to the other 4 turrets.