Author Topic: NA B-27A High Speed Medium Bomber  (Read 15640 times)

Offline kitnut617

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Re: NA B-27A High Speed Medium Bomber
« Reply #25 on: January 31, 2020, 10:55:34 PM »
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.

Offline Kerick

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Re: NA B-27A High Speed Medium Bomber
« Reply #26 on: January 31, 2020, 11:15:02 PM »
I have some buckshot for nose weight that is soft enough I can squeeze it with pliers into different shapes to fill tight spots.

Offline kitnut617

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Re: NA B-27A High Speed Medium Bomber
« Reply #27 on: January 31, 2020, 11:45:35 PM »
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.

Offline Robomog

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Re: NA B-27A High Speed Medium Bomber
« Reply #28 on: February 01, 2020, 02:22:59 AM »
This is a cool piece of plastic surgery, like it a lot

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Online Frank3k

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Re: NA B-27A High Speed Medium Bomber
« Reply #29 on: February 01, 2020, 05:45:25 AM »
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.

Offline Old Wombat

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Re: NA B-27A High Speed Medium Bomber
« Reply #30 on: February 01, 2020, 03:27:41 PM »
Thanks, gents! :icon_alabanza:

I don't even want to think about building a kitbash in 1/200! :o
"This is the Captain. We have a little problem with our engine sequence, so we may experience some slight turbulence and, ah, explode."

Offline Old Wombat

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Re: NA B-27A High Speed Medium Bomber
« Reply #31 on: February 01, 2020, 09:37:32 PM »
Small progress;






"This is the Captain. We have a little problem with our engine sequence, so we may experience some slight turbulence and, ah, explode."

Offline The Big Gimper

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Re: NA B-27A High Speed Medium Bomber
« Reply #32 on: February 01, 2020, 10:23:46 PM »
You nailed this one, Guy!
Work in progress ::

I am giving up listing them. They all end up on the shelf of procrastination anyways.

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Offline Old Wombat

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Re: NA B-27A High Speed Medium Bomber
« Reply #33 on: February 01, 2020, 11:24:28 PM »
Not yet, Carl, I'm still working on it! :o
"This is the Captain. We have a little problem with our engine sequence, so we may experience some slight turbulence and, ah, explode."

Offline The Big Gimper

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Re: NA B-27A High Speed Medium Bomber
« Reply #34 on: February 02, 2020, 12:30:35 AM »
Nah! Given what you have down to date I'm spotting you a solid on this build Guy!  :smiley:
Work in progress ::

I am giving up listing them. They all end up on the shelf of procrastination anyways.

User and abuser of Bothans...

Offline GTX_Admin

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Re: NA B-27A High Speed Medium Bomber
« Reply #35 on: February 02, 2020, 03:36:29 AM »
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:


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Offline Camthalion

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Re: NA B-27A High Speed Medium Bomber
« Reply #36 on: February 02, 2020, 05:13:46 AM »
thats coming along really well.  Looks good

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Re: NA B-27A High Speed Medium Bomber
« Reply #37 on: February 02, 2020, 06:11:02 AM »
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.

Offline FAAMAN

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Re: NA B-27A High Speed Medium Bomber
« Reply #38 on: February 02, 2020, 08:36:10 AM »
Well, well well Wombat, how very Luft'46 of you  ;)
Very very cool dude, as usual wonderful work.  8) 8) 8) 8) 8) 8) 8)
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Offline finsrin

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Re: NA B-27A High Speed Medium Bomber
« Reply #39 on: February 02, 2020, 10:02:09 AM »
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  8)  8)  8)

What putty are you using ?

Luft '46 drawing new to me and cool/inspiring  8)

Offline elmayerle

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Re: NA B-27A High Speed Medium Bomber
« Reply #40 on: February 02, 2020, 01:11:14 PM »
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".

Offline Old Wombat

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Re: NA B-27A High Speed Medium Bomber
« Reply #41 on: February 02, 2020, 02:11:58 PM »
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! :icon_alabanza:
"This is the Captain. We have a little problem with our engine sequence, so we may experience some slight turbulence and, ah, explode."

Offline Brian da Basher

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Re: NA B-27A High Speed Medium Bomber
« Reply #42 on: February 02, 2020, 08:59:11 PM »
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

Offline LemonJello

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Re: NA B-27A High Speed Medium Bomber
« Reply #43 on: February 03, 2020, 02:24:12 AM »
Good progress report/update.  I'll just echo what everyone else has said. This is looking so good.

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Re: NA B-27A High Speed Medium Bomber
« Reply #44 on: February 03, 2020, 02:37:39 AM »
I think I'll just stick with the cut-down B-25 concept, guys.

Fair enough.  Itís 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.
« Last Edit: February 03, 2020, 02:39:17 AM by GTX_Admin »
All hail the God of Frustration!!!

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But you can make the Bastard work for it.

Offline elmayerle

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Re: NA B-27A High Speed Medium Bomber
« Reply #45 on: February 03, 2020, 11:05:39 AM »
I think I'll just stick with the cut-down B-25 concept, guys.

Fair enough.  Itís 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).

Offline Old Wombat

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Re: NA B-27A High Speed Medium Bomber
« Reply #46 on: February 04, 2020, 09:32:08 AM »
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.
« Last Edit: February 04, 2020, 09:53:11 AM by Old Wombat »
"This is the Captain. We have a little problem with our engine sequence, so we may experience some slight turbulence and, ah, explode."

Offline elmayerle

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Re: NA B-27A High Speed Medium Bomber
« Reply #47 on: February 04, 2020, 10:27:13 AM »
Perhaps make metal castings of the engines and propellers?  Too bad you can't easily find some of the old Aeroclub bits.

Offline Old Wombat

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Re: NA B-27A High Speed Medium Bomber
« Reply #48 on: February 04, 2020, 10:52:48 AM »
Unfortunately, beyond my skill set. :(
"This is the Captain. We have a little problem with our engine sequence, so we may experience some slight turbulence and, ah, explode."

Offline Kerick

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Re: NA B-27A High Speed Medium Bomber
« Reply #49 on: February 04, 2020, 11:50:15 AM »
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.