Thanks Wojtek and Hugh, it's starting to progress nicely.
The bulkheads forming the bomb bay have been completed, although the bay itself will remain bare, and have the doors fixed in the closed position. The 'U' shaped formers in the entrance well have been made and fitted, and one half of the fuselage has had frames and stringers fitted.
PIC 1. The completed bomb bay structure. Like the rest of the interior, this is not quite totally accurate in shape, being a simplified addition, more to create depth and show that there's
something on the inside, rather than an empty space, in those areas where parts of the interior can be seen.
PICS 2 and 3. The frames for the 'U' shaped entrance well have been fitted on each side, and will have more structure, and detail in the form of radio and nav equipment, added later. They're a bit difficult to see (and understand) clearly in these pics, but should be more visible, and make more sense, once the main cockpit area is fitted and joined to the frames.
PICS 4 to 6. A very basic representation of frames and stringers has been added to the starboard fuselage side, a long and monotonous task, especially as not that much of the interior will be seen. But, because what
can be seen of the interior would look bare without them, they had to be done.
PIC 7. The internal frames also act as rebates on which the waist windows will sit when fitted.
Next step is to continue with the frames and stringers on the port side, and then start to fabricate and add some basic interior detail, such as the radios and nave aids, ammo boxes etc etc.
Some of these additions will be in the form of ' educated guesswork', as detailed photos showing the interior of RAF Mitchells, and the equipment specific to these models. are as rare as rocking horse s*it !
I've just discovered that the late B-25D versions received by the RAF which had the waist and tail gun positions, and known as the Mitchell Mk.IIa or MkII srs ii in RAF service, apparently did not have the gun fitted in the tail in most cases (note that just a single .50 cal Browning was specified for this earlier mount), but I intend to fit a single gun anyway, later in the build.
I have confirmed that, as of February 1944, the 'Gee' nav-aid was fitted, and have identified the positions, in photographs, of the whip antenna for this, and also for the later 'G-H' equipment fitted to some aircraft from mid 1944. I haven't been able to discover the precise location of the receiver and monitor unit inside the aircraft, although apparently there is some film footage of this included in a IWM film covering the development of RDF/Radar, so again, the positioning will be a 'best guess' decision.
Thanks again for your continued encouragement and interest in this build, and I'll post another up-date soon.