Thank you Martin and Jim for your comments... It feels good to be back modelling after a couple of weeks gap...
Slow, but at least continual progress...
Having finished most of the foremast and then airbrushed it the basic 507C in preparation for the camoufage that extends up the main tripod mast, I decided to finish the mast off with the 271 radar lantern.
At first glance the kit part looked OK for size and shape as the lantern itself sits on a small round platform on the starfish platform. However, having looked up a photo of a 271 lantern and looked at photo's of Renown very carefully, I knew it would be quite an eyecatching detail when looking at the model and wanted to do something a little better. I thought about it for a while and then phoned Jim Baumann for some inspiration and ask him where he got the railing from to represent the framing on his HMS Renown. Askold PE fret he thought... the five bar railings. It had been a while since Jim had build his Renown, but was sure it was from there. As it happens, I happen to have an Askold PE fret lying around, so got it out and had a look. There were no five bar railings, but there are some nice bits of odd PE that could be useful so I decided to try using a short length of four bar railings to simulate the framing around the lantern. I would then paint the background silver and the framing black and hoped that would do... Then I looked at the photo of the lantern again and thought I would scratchbuild the whole thing. If it looked good I would use it, if not, I would revert to the original kit part and some paint... so I had a failsafe!

The kit part... with a bit of railing wrapped round it to simulate the framing. It is much too short though. The railings on the starfish platform almost reach the lantern itself, which is completely wrong. And you can imagine that once you add railings to the rather thick platform that is cast on, the whole thing would look completely incorrect. Really wouldnt do!

A 271 radar lantern (this is from HMCS Sackville I think..). Not quite the same, but pretty close to what I wanted, so I used this as a reference and then tried to make my scratchbuilt one as close to that as possible, but using the railing pattern I saw on the plans and could just about make out in the few photo's I had that showed the 271 on Renown...
I started by making the platform from some thin plasticard and some round styrene rod. The railings were four bar from the Renown fret. I glued the railings flush with the edge of the platform rather than on top to keep the thinness of the platform (one of the many things I have picked up from reading Jims WIP threads!).

Platform assembled and airbrushed 507C. I drilled a small hole in the bottom and poked a bit of fusewire in and glued it with white glue so I could hold it while airbrushing it.
I had several attempts at making the 271 lantern... all, but the last, complete failures. I tried using some clear tubing by heating and stretching some clear plastic tubing used to hold brass rod. It stretched fairly well, it
was possible to stretch tube as easily as sprue and still hold form. I was really pleased with it at first, but it was far too brittle and cracked as soon as I tried to cut it to size... even when using some thick rod inside to brace it. That was one failure. Then I tried using some clear soft tubing, which was easy enough to get the right size, but when I glued the lower half on the CA fumes fogged the inside so it didnt look right either. I also realised that I would probably fog the whole thing when I did a final matt spray over the whole model and, as I wanted the lantern to look clear and glazed, I decided in the end to make it completely open. Returning to the Askold fret I saw three platforms with some closely spaced three bar railings attached to them. The pattern looked close enough, so I cut them apart and rolled them up to represent the framing around the lantern. Through the glazing you can see a fairly thick round assembly which is the radar itself and which prevents a model of the lantern looking completely see though. I decided I would represent that with some rod, although the diameter used was probably too small. I then cut a short slice of plastic rod for the lower half of the lantern and punched out three discs, one for each end of the rod to form a 'sandwich' to represent the construction of the actual thing, and the third disc as the 'lid' to go over the 'open' part of the lantern.

The parts of the 271 lantern prior to airbrushing
I airbrushed all of the parts matt black to start with, then turned them all over and airbrushed them 507C and, once dry, assembled them all to make the lantern itself.

Its not quite as 'smooth' as I would like under this amount of magnification... but in 1:1 it is more than acceptable. Much better than the original part and although it took me two days and loads of failed attempts I am very happy with it... and much more importantly... it was really fun, and made my brain work trying to do it... Which is what this is all about in the end, anyway.
Anyway, here it is mounted on the platform I had made earlier... The mast is just jammed in the mounting hole and not in its final position, so yes, I notice the tripod legs dont quite reach their mounting holes!... I still need to airbrush the camouflage on the tripod legs and that is only possible with the mast off the ship.
I'll glaze it later with 'Klear', which will also make the black framework shiny, which will be a nice contrast with the matt of the rest of the assembly... I can see that under this amount of magnification it is ludicrously too tall, the bottom of the open part of the lantern should be about the same height as the top of the railings (although the kit part is much too short!), so I will take it off (luckily it is only glued in place with a dot of white glue at this point... I normally dont CA anything unless I am completely happy) and I'l remove a bit from the underside of the platform support as well... probably about a millimetre or so from each, which will lower it enough... (I could do with sanding the 'lid' now I see it under this amount of magnification. A hole punch doesnt leave as clean an edge as you think!) but its a much nicer looking representation than the basic kit part... even if it was a lot of work in 700 scale! Bloody enjoyable though.
I am definitely going to reduce the height of the whole assembly... probably do that tomorrow while I am waiting from the camouflage to dry on the tripod legs... Anyway, thats enough for tonight.
(PS. many thanks to Jim B for continuing to encourage me to try things... and for advice and help when I call in a minor panic!

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