1/29 Baldwin Shark B Unit Kit

g-bits

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On the first day of Christmas, G-bits posted up......

SharkB-sideview3600.jpg

... a photo of a 1/29th Baldwin shark B-unit. Form some reason I completely forgot to add any tinsel, but we'll run with it now..

A bit of history :

As most people know, a couple of years back Mr Spock of this parish commissioned a set of master patterns for a B-B Baldwin shark A-unit. Those were used to make resin copies, and suddenly the G-scale world was full of little sharks including some here.

There was never a matching B-unit - which was a touch unfortunate for me, because the Pennsy only ever ran the things in matching sets. Hence the shell above sitting on shop trucks - 90% done, pretty much all that's left to do is to drop the main fans into place, trim the roof to length and another pass with filler/sand/primer. If nothing else, I think the picture shows the PRR should have painted some tuscan red..

What you're looking at is a Beta test version - The visible surfaces are dimensionally where I want them to be (this test shell is going to live on a B-unit in my collection), but having built the first one, you learn things and Mk2 will be improved, stronger and make slightly less use of the swear box. At that point Mr Spock and I between us already want enough of these things to make a production run viable so I'll be issuing it as short-run kit.

I've worked from decent drawings, but also set out to match the original kit - things like overall width and cross section are deliberately the same, and the intention is to use the same etched grilles and minor castings so that they look like a matched set when formed up AB, ABA, etc. If we can dig out and reuse the original tooling for the carryover parts (NOT necessarily a given) rather than make new negatives and molds, that would obviously help the price a bit too.

General method of assembly would be exactly the same as the A-unit - why reinvent the wheel - and planned contents of the kit are :
Pre-assembled styrene shell, finished filled and primed
Pre-assembled fuel tank, " "
Correct numbers of detail metal castings matching those used on the A-unit
Etched grilles etc as per the A-unit
Pre-cut glazing for the door windows
Pre-assembled chassis plate designed to bolt in and accept the fuel tank and Aristo trucks without any major work.

ie final assembly, trucks, paint and decals required to complete, perhaps even a little simpler than the A.

Target price is about the £300 mark including domestic shipping. US and antipodean export customers will probably pay about the same - they'll save £50 on the VAT, and then spend it again on the extra shipping cost. This isn't yet a fixed price and will be affected by both how much of the 'little parts' tooling can be reused and how many copies we wind up making. It's not going to be economic to buy in the small castings/etchings as and when, just all together, so the B-unit won't be joining the G-bits catalogue, it'll be permanently retired after the one batch of however many.

If you are interested in a kit, please give a me a shout, either by PM or email. I won't take that as a commitment, but I'd like to get an idea of numbers, particularly if we wind up needing to re-make some of the original tooling.

I'd roughly expect the Mk2 prototype version to be ready in late February, maybe March. By then we'll know the full story on tooling, plus likely numbers and will be able to fix a price and take firm orders. Delivery would be April/May/June depending on the number in the batch and your place in the queue.

Merry Christmas,

Jonathan
G-bits

SharkB-vents3600.jpg
 
PRR shark 2.jpg PRR Shark.jpg PRR Shark.jpg

Like these.....;)
 
That there be the PRR only 6 axle passenger version.. Mine up top is just a tiddler with only 4 axles and 1500hp...
But I think I might do some in tuscan anyway, if you squint through rose-tinted spectacles they almost look longer..
J.


I originally thought that #5773 was a BB wheel arrangement. It's difficult to tell from the photo I posted. So I Googled Pennsylvania railroad Shark nose diesels. Since most of the photos are black & white, that left just a few showing color. I could not find a BB unit in Tuscan Red.....:(
 
I originally thought that #5773 was a BB wheel arrangement. It's difficult to tell from the photo I posted. So I Googled Pennsylvania railroad Shark nose diesels. Since most of the photos are black & white, that left just a few showing color. I could not find a BB unit in Tuscan Red.....:(

I honestly don't think there ever were any. Like the 4 axle units, like Tuscan Red, would love to be proven wrong so as to justify a set. In the absence of a convenient photo, rule 8 will have to do.
 
And the Beta test shell is basically done - main fans made and dropped in, sundry other details finished and another dusting of rattle can red.

SharkB-endview3000.jpg

I did try taking a picture of the whole thing, but the combination of flash photography and red primer made it pretty much impossible to actually resolve any detail. If we get a nice bright day in the near future, I'll try and take shots outdoors in natural light.

Eagle-eyed subscribers will note the lack of a fuel tank - I haven't made one yet, it's basically a squarish box without any technical difficulty and is best done as part of the same design exercise as the chassis plate so that the one mounts easily on the other.

Next stage? Design said chassis plate and start laying out the internals of the Mk2 (and hopefully production) version.

Jonathan
g-bits.co.uk
 
Thank you for that Mr B.

More photos, taken in the best approximation daylight available locally..

Another, hopefully better, shot of the general fan area :

SharkB-daylight-vents3600.jpg

From the end, showing I haven't forgotten to put a door and lights in :

SharkB-endview3000.jpg

The exhaust port area, about the only other real interest on the roof :

SharkB-daylight-exhaust3600.jpg

The side view, not that it looks a great deal different than in the first posting :

SharkB-daylight-side3600.jpg

And just for variety, t'opposite side - not quite a mirror image, the door is at t'other end :

SharkB-daylight-otherside3600.jpg

That's going to be it for a while, I've got some of the metal bits out for quote already, but there won't be much else in terms of visible differences for a month or so.

Jonathan
g-bits.co.uk
 
Glad to see some updates on this and that it is moving along. I'm anxious to get one. Saved those Aristo trucks for a long time!
 
Just a quick update to confirm that the UK price will be £300 inclusive of both VAT and shipping if you pay by either cheque or bank transfer. Paypal will be £310 to cover their fees.

I expect the US price to be about the same - VAT refund pays for the shipping - but can't be sure until I have a 100% complete kit packed up and weighed for airmail.

Nothing new to show yet, but in the background Rob (who did the A-unit masters) has been in touch and with his help I've been able to nail down all the carry-over parts, which is why the price is now fixed except for international shipping.

The etched grilles and corridor connection components will be done from Rob's original artwork but same supplier which both saves the cost of re-tooling and means they'll be a perfect match. There's also no problem doing a part-sheet to get the second corridor connection needed by each B-unit.

Unfortunately the (brass) castings supplier have closed up shop since the originals were made, so we will have to make a new mold, but a well-recommended alternative supplier has given a nicely in-budget quote for making and using a replacement so those should also be a good match.

I already had OK numbers from a local supplier for the metal parts of the chassis, so that's a full house on the bought-in parts and I can go back work on the bodyshells. Those'll look almost exactly like the one I've already posted up, but since each one is hand-finished anyway there's no real difficulty making the odd detail like back-up lights road-specific - so there'll be (possibly bewildering) set of options there, at least where I can get the prototype information.

Jonathan
g-bits.co.uk
 
Hi Jonathon, finally managed to get access again, until BT chop more poles down, looking good there its given me the kick start I needed to get my shed cleared out and sort out a stock clearance to make room for even more diesels hahha,

when I work out how to use windows 10 for pictures without sending everyone in the world a picture i will
On the first day of Christmas, G-bits posted up......

View attachment 205818

... a photo of a 1/29th Baldwin shark B-unit. Form some reason I completely forgot to add any tinsel, but we'll run with it now..

A bit of history :

As most people know, a couple of years back Mr Spock of this parish commissioned a set of master patterns for a B-B Baldwin shark A-unit. Those were used to make resin copies, and suddenly the G-scale world was full of little sharks including some here.

There was never a matching B-unit - which was a touch unfortunate for me, because the Pennsy only ever ran the things in matching sets. Hence the shell above sitting on shop trucks - 90% done, pretty much all that's left to do is to drop the main fans into place, trim the roof to length and another pass with filler/sand/primer. If nothing else, I think the picture shows the PRR should have painted some tuscan red..

What you're looking at is a Beta test version - The visible surfaces are dimensionally where I want them to be (this test shell is going to live on a B-unit in my collection), but having built the first one, you learn things and Mk2 will be improved, stronger and make slightly less use of the swear box. At that point Mr Spock and I between us already want enough of these things to make a production run viable so I'll be issuing it as short-run kit.

I've worked from decent drawings, but also set out to match the original kit - things like overall width and cross section are deliberately the same, and the intention is to use the same etched grilles and minor castings so that they look like a matched set when formed up AB, ABA, etc. If we can dig out and reuse the original tooling for the carryover parts (NOT necessarily a given) rather than make new negatives and molds, that would obviously help the price a bit too.

General method of assembly would be exactly the same as the A-unit - why reinvent the wheel - and planned contents of the kit are :
Pre-assembled styrene shell, finished filled and primed
Pre-assembled fuel tank, " "
Correct numbers of detail metal castings matching those used on the A-unit
Etched grilles etc as per the A-unit
Pre-cut glazing for the door windows
Pre-assembled chassis plate designed to bolt in and accept the fuel tank and Aristo trucks without any major work.

ie final assembly, trucks, paint and decals required to complete, perhaps even a little simpler than the A.

Target price is about the £300 mark including domestic shipping. US and antipodean export customers will probably pay about the same - they'll save £50 on the VAT, and then spend it again on the extra shipping cost. This isn't yet a fixed price and will be affected by both how much of the 'little parts' tooling can be reused and how many copies we wind up making. It's not going to be economic to buy in the small castings/etchings as and when, just all together, so the B-unit won't be joining the G-bits catalogue, it'll be permanently retired after the one batch of however many.

If you are interested in a kit, please give a me a shout, either by PM or email. I won't take that as a commitment, but I'd like to get an idea of numbers, particularly if we wind up needing to re-make some of the original tooling.

I'd roughly expect the Mk2 prototype version to be ready in late February, maybe March. By then we'll know the full story on tooling, plus likely numbers and will be able to fix a price and take firm orders. Delivery would be April/May/June depending on the number in the batch and your place in the queue.

Merry Christmas,

Jonathan
G-bits

View attachment 205819
 
Yes, I would also be interested in a B unit. I have two of the original A units. Please send a PM with email address for payment when you get a US price. Thanks Jack
 
Hi Pete, Just found this thread. How the devil are you?...Haven't seen any pictures of your fine railroad for some time.

This project with Jonathan organising it together is quite a progression for you 'Sharks'. Shame that Rio Grande didn't use them or I may be tempted!
 
Hi Pete, Just found this thread. How the devil are you?...Haven't seen any pictures of your fine railroad for some time.

This project with Jonathan organising it together is quite a progression for you 'Sharks'. Shame that Rio Grande didn't use them or I may be tempted!
Hi again,

I am leaving all the B unit in Jonathons very capable hands , I have little time still to sit down and do much but I do have anothr layout running so thi summer will hopefully have some new pics and vids to show, and even a fleet of new loco's, and perhaps the Original demo loco sharks may have been tested ? they wee well geared for hills.
 
Mr Portaloo's Great American railway journeys on BBC Monday - visit to B&O museum included video clip of Sharknoses running A-B-A formation. Hope this does not give anybody any ideas. Max
 
That's an early-ish RF-16 B-unit, complete with the two extra grilles let into the bodyside (what looks a bit like a low-headroom door, about 1/3rd of the way in from the left hand end).

I think all the RF-16 (and 'RF-15') units had these by the end, but at least some of the were supplied new without.

(Actually 2020B looks to have a non-standard 'optional' grille, standing slightly taller than normal and without a distinct horizontal bar - presumably the result of some railroad shop-work making the unit work with parts that were available. Compare with this shot of it's 'mate' 2020A (link) http://abpr.railfan.net/abprphoto.cgi?february10/02-13-10/prr2020d.jpg&redirect=1 . It might be that 2020B has a outer grille-plate the same type as the cant-rail one above it but mounted vertically rather than horizontally - if you look at the top of the opening there's a suggestion of plate behind the top part, which brings the actual opening down to a more normal size. )

Rob's original A-unit kit had the 'standard-type' 'extra' grilles on the etched sheet as optional parts, but to use them you needed to rearrange the body-strapping a bit and maybe cut some holes behind where they were going to be. Because each of these B-units is going to be hand-assembled rather than cast from a single master, it's no great hassle to build things like that in so there'll be some options for people to choose from.

In principle I'm going to offer choices that will allow you to model any of the units at more or less any point in its life (except the ?3x? Alco-repowered units, where I don't have good enough information - looks like the roof got a major work-over), and give people enough information for them to have a head start on working out which they need. In practice there are always going to be oddities like 2020B above, which slip through the net - that said, you could still do 2020B with my option3 kit, a spare grille etch and an inch of 20x60thou styrene to fix the strapping. Anyone know if the other side was the same?

I'm going to leave explaining the options properly until I have photos to illustrate them all, which is likely another couple of weeks.

Jonathan

g-bits.co.uk
 
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