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New Build Sperry A-1A Top Turret Dome

Posted: Fri Feb 22, 2013 9:05 am
by DryMartini

Thought for a while on where to start this thread, but I think this is the logical choice.

No one can claim that board member "Hang The Expense" is a computer hacking maniac,
and so I told him that I'd help him out.

Below are photos of Hang's A-1A turret dome reproduction project.
I have to admit that when Hang called me up at 11:30pm one night
with a wild hare tale about waterjetting out a top turret dome, I was
a little skeptical. However, the pictures prove that this guy knows
a little something about metalworking.

Original turret dome to use as a pattern
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Fixture built off the original dome
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New rough cut parts
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Tuning those rough parts
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Pockets for the side ring
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Rear Bows still need some work done
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Machining needed to match up with the interconnecting parts
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Tricky side bits
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Tricky front segments parts. Still needs some rolling, forming, and "influence" for the perfect fit.
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Do you need an A-1A turret dome? I'm sure Hang'll make you one, but you need to ask yourself one question:
Did you bring cubic dollars?
Well, did ya?

Re: New Build Sperry A-1A Top Turret Dome

Posted: Fri Feb 22, 2013 9:22 am
by PineCastleAAF
That is just fantastic. I'm in awe and I'm not kidding that is good stuff.

Re: New Build Sperry A-1A Top Turret Dome

Posted: Fri Feb 22, 2013 12:51 pm
by beast44k
If you have a model, you can replicate pretty much anything.....just need someone to loan out a ball turret.

Re: New Build Sperry A-1A Top Turret Dome

Posted: Fri Feb 22, 2013 1:20 pm
by hang the expense
I cant wait to tackle a ball turret.I have built one before in my head and am still working out the individual parts and how to put it all together.There is a shortage of those for sure.I am making aluminum cheek windows frames for late F and G models now in addition to the turret shell.I want to do the earlier low profile one piece shell next.thank you guys for your interest,Tom :badgrin: :badgrin: :badgrin: I just love the bad grin smiley.

Re: New Build Sperry A-1A Top Turret Dome

Posted: Fri Feb 22, 2013 2:14 pm
by Dave
Fantastic work, can you make the tub and the rest of the turret?, I want one :D :D

Re: New Build Sperry A-1A Top Turret Dome

Posted: Fri Feb 22, 2013 4:19 pm
by hang the expense
Making the tub would be no big deal from what I have seen of the part.I will get through the shell and then look at that.

Re: New Build Sperry A-1A Top Turret Dome

Posted: Fri Feb 22, 2013 5:01 pm
by RodSchneider
Gee, Tom, is that the turret shell that was sitting in our hangar for a while? :D

Re: New Build Sperry A-1A Top Turret Dome

Posted: Sat Feb 23, 2013 5:49 pm
by KnockoutDropper
Where is this A1A shell going to go? The scratch-built B-17F project that is showcased on this forum?

Re: New Build Sperry A-1A Top Turret Dome

Posted: Sat Feb 23, 2013 7:05 pm
by hang the expense
Right now I am building this one to see how it goes and how long it takes.So far its been pretty straight forward.The scratch built bird uses an earlier turret shell than what I'm building now.

Re: New Build Sperry A-1A Top Turret Dome

Posted: Mon Feb 25, 2013 9:53 pm
by hang the expense
I started cutting out the slab sided ring that runs around the side of the turret with the relief pockets for the retaining nuts.Will get some pics up tomorrow if I can get far enough along on it.

Re: New Build Sperry A-1A Top Turret Dome

Posted: Fri Mar 01, 2013 11:38 am
by DryMartini
A few more pictures - this of the aiming glass frame.

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Re: New Build Sperry A-1A Top Turret Dome

Posted: Fri Mar 01, 2013 1:00 pm
by hang the expense
Thanks for posting the pics Dry.

Re: New Build Sperry A-1A Top Turret Dome

Posted: Sun Mar 03, 2013 6:36 pm
by DryMartini

All right - You all have or want turrets.
I have this:

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It is an ORIGINAL painting (one of three as I recall) used as
prototypes for the album cover for Scruffy The Cat's "Boom Boom Boom Bingo" album.

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If you know about Scruffy The Cat, give yourself 10 points.
I bought it from Stephen Fredette, who had a relative who flew P-38s.

What do ya think?

Taking this forum to places it's never been before...

Re: New Build Sperry A-1A Top Turret Dome

Posted: Thu Nov 07, 2013 8:33 pm
by NickV
How cool! Jealously rears its ugly head...again!
Nick

Re: New Build Sperry A-1A Top Turret Dome

Posted: Thu Nov 07, 2013 10:17 pm
by hang the expense
I am back on the turret so we will see how it goes.There are a few of the little pieces I need to make to tie it all together.Thank GOD for waterjet service.