NA B-27A High Speed Medium Bomber

[kitnut617]

Some years ago I got a very large sheet of lead from the local scrap metal dealer, the sort that was used to be put along the gutter edges and in the grooves where the roofs changed direction. I got it to use for nose weight in the models.
I've also used some of it a couple of times to replace the cockpit floor in a kit, Canberras and Meteors.

[Kerick]

I have some buckshot for nose weight that is soft enough I can squeeze it with pliers into different shapes to fill tight spots.

[kitnut617]

Long time ago, the old big houses in England had these counter weights for the windows IIRC. It was mostly bird-shot which was put in neat little ceramic pots which had a loop cast into the top end for the rope to tie to. I used to use that bird shot a lot in my builds way back then (60's, 70's)

Like these.

[Robomog]

This is a cool piece of plastic surgery, like it a lot

Mog
>^-.-^<

[Frank3k]

This is awesome, Guy! I've been trying to do the same on a Trumpeter 1/200 B-25 and haven't been able to wrap my brain around the cuts needed.

[Old Wombat]

Thanks, gents!

I don't even want to think about building a kitbash in 1/200!

[Old Wombat]

Small progress;

[The Big Gimper]

You nailed this one, Guy!

[Old Wombat]

Not yet, Carl, I'm still working on it!

[The Big Gimper]

Nah! Given what you have down to date I'm spotting you a solid on this build Guy! 

[GTX_Admin]

Looking at this image:



I am tempted to say, do it as a 4 engine version with two nacelles with engines in a push-pull arrangement somewhat similar to this:

[Camthalion]

thats coming along really well.  Looks good

[Frank3k]

Wow! -  the canopies look like they were meant to be in this configuration! Is this the new molds Airfix B-25? The lack of rivets say yes, but the cockpit reminds me of the old kit.

[FAAMAN]

Well, well well Wombat, how very Luft'46 of you 
Very very cool dude, as usual wonderful work. 

[finsrin]

Ditto on prior posts.  Amazed how canopies appear OOB fit.   Interior sure squared away.  Drag and weight reduction has gotta  help performance.  Concept and your build are cool     

What putty are you using ?

Luft '46 drawing new to me and cool/inspiring 

[elmayerle]

Looking at this image:



I am tempted to say, do it as a 4 engine version with two nacelles with engines in a push-pull arrangement somewhat similar to this:

So, what were you thinking for the push-pull arrangement?  Air-cooled radial - air-cooled radial, air-cooled radial - liquid-cooled inline, liquid-cooled inline - air-cooled radial, or liquid-cooled inline - liquid-cooled inline?  If you have an air-cooled engine at the back of the nacelle, the cooling set up gets rather more "interesting".

[Old Wombat]

I think I'll just stick with the cut-down B-25 concept, guys.


Frank; Yes, the new mould Airfix B-25C/D.


I have had some fit issues, mostly due to my ... surgery ... but there are a few others, especially in relation to the wing/landing-light glazing; the parts seem slightly short, & shallow at the rear, but nothing a bit of putty & a shim or two can't fix.

The glazing of the canopy has, in fact, dragged this down from a competition level build to a display only build; which is fine by me, as private display is its primary purpose.


Thanks for the comments & for watching, gents!

[Brian da Basher]

Outstanding, Mr Wombat!

I like the look of that long glazed nose.

The framing is very well done and I'm impressed by your patience and steady hand!

Brian da Basher

[LemonJello]

Good progress report/update.  I'll just echo what everyone else has said. This is looking so good.

[GTX_Admin]

I think I'll just stick with the cut-down B-25 concept, guys.

Fair enough.  It’s your build after all.

Evan - I was thinking either air-cooled in front and liquid cooled in rear or just all liquid cooled.  Would probably have used Allison V-1710s.

[elmayerle]

I think I'll just stick with the cut-down B-25 concept, guys.

Fair enough.  It’s your build after all.

Evan - I was thinking either air-cooled in front and liquid cooled in rear or just all liquid cooled.  Would probably have used Allison V-1710s.

Agreed, fair enough.  I think those two would be the easiest to do concepts.  The next step from there would be a scaled up B-29 equivalent with W3420s (AFAIK, the only coupled engine concept that was really made to work reliably, and then it was not needed).

[Old Wombat]

Nacelles & undercarriage fitted last night ... she's a tail-sitter, all right!

I, earlier, managed to pack the front wheel well with fishing weight lead & a small amount of PVA & she seemed to be slightly tail heavy but I had a cunning plan to but more fishing weight lead in behind the engines.

This will not work, now she's up on her legs. I fitted the weights in the front of the nacelles, put her down, & "clunk" back on her arse. The engines & prop's, when fitted, will only counter balance the turret, which isn't yet fitted.

Looks like I'll need to make a base & pin her to it.


Photo update in this post, shortly done.







As you can see, a tail sitter. The shiny bits in the nacelles are the weights I was going to use (OK, they're one weight cut in two) & anything more is going to seriously compromise the ability of the undercarriage to hold her up.

[elmayerle]

Perhaps make metal castings of the engines and propellers?  Too bad you can't easily find some of the old Aeroclub bits.

[Old Wombat]

Unfortunately, beyond my skill set.

[Kerick]

B-25s had a rear access hatch with a built in ladder. It doesn't go all the way to the ground but you could fake that in and use it for a prop. Its Whiff world after all. Or scratch a step ladder sticking up into the fuselage. Its an old trick but still good.