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Armor/AFV: Softskins
Softskins group discussions.
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CCKW bolster truck info appeal
KurtLaughlin
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Posted: Thursday, August 20, 2020 - 11:38 PM UTC

Quoted Text

I think this comparison works because I ran the red line off the top of the Jeep tire and it runs parallel to the line of the running board so it therefore correctly projects the perspective forward. (30+ years of graphic arts, exhibit and stage design.)

So if you know the outside diameter of the Jeep tire this will give you a further size comparison.



There's no need for any of that. All dimensions of the 11.00-18 MD tires are known from the specification.

KL
barkingdigger
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Posted: Friday, August 21, 2020 - 12:55 AM UTC

Quoted Text

If you use those large resin cast super single tires you WILL definitely have to have extended longer rear springs.

I say that because I had already assembled AND solidly installed the stock rear suspension in my Italeri DUKW before receiving the new resin tires. Rather than run the risk of ripping that all out I was able to build spring extensions and relocate the axles to accept the larger tires!



Hi Mike, that's because Italeri goofed and put their axles 29mm apart, when the 44in space scales down to 32mm in 1:35. (They might have done it to hide the undersized tyres, or measured a modified museum exhibit - who knows?) That's why I designed a corrected set of springs and prop shafts!
barkingdigger
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Posted: Friday, August 21, 2020 - 01:01 AM UTC

Quoted Text

Found this image online some years back. Do not know who might be producing these beautiful long boats.



That's a tasty ponton model! I couldn't find anything like it on the web - just German versions. But I'll worry about the load after I get the truck built...
165thspc
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Posted: Friday, August 21, 2020 - 02:41 AM UTC

Quoted Text


Quoted Text

If you use those large resin cast super single tires you WILL definitely have to have extended longer rear springs.

I say that because I had already assembled AND solidly installed the stock rear suspension in my Italeri DUKW before receiving the new resin tires. Rather than run the risk of ripping that all out I was able to build spring extensions and relocate the axles to accept the larger tires!



Hi Mike, that's because Italeri goofed and put their axles 29mm apart, when the 44in space scales down to 32mm in 1:35. (They might have done it to hide the undersized tyres, or measured a modified museum exhibit - who knows?) That's why I designed a corrected set of springs and prop shafts!



Alright!
BIG THUMBS UP TO YOU TOM!
165thspc
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Posted: Friday, August 21, 2020 - 02:43 AM UTC
Kurt, I knew you were the tire spec guy around here and would come thru with the exact info.


Tom, I hope some of these photos help you in your quest and I look forward to being your first customer for this project!
Frenchy
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Posted: Friday, August 21, 2020 - 02:45 AM UTC

Quoted Text

In the 3rd picture of Michael's most recent post of pictures you can clearly see the later French wheel/tyre combo.



and here's a French Army one :



10čme Régiment du Génie, 1967 :



Such trucks were used until 1993....

1/35th scale scratchbuilt one from a French forum :

https://france135.forumactif.com/t496-gmc-bolster

Another one in 1/72nd scale on a Czech forum :

https://www.modelforum.cz/viewtopic.php?f=58&t=37816&sid=88616f58fbabe19eec4514ff9080a47c

Talking about reference stuff, there must be something somewhere as these two pages are from a French Army manual which is apparently a US Army document translation...





H.P.
barkingdigger
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Posted: Saturday, August 22, 2020 - 06:34 AM UTC
Those French trucks are cool! Finding the correct rims and tyres might be a challenge, as they aren't like any I've seen offered in 1:35. Then there are the ones with standard CCKW-style dualies on the rear and trailer...

Mt DEF wheels arrived, and I must say they look very good! They are the right size, the right width, and are based on the Goodyear tires complete with the ridge on the sidewall and the raised "Good Year" lettering. The only thing against them for DUKW use is they come with standard CCKW hubcaps, rather than the CITS inflation hubs and piping that every DUKW had when it left the factory. But they are perfect for the bolster truck! It takes two sets to get the extra two wheels for the trailer though...
Frenchy
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Posted: Saturday, August 22, 2020 - 08:28 AM UTC
I've just found the original TM the French manual is based on. It's the TM 5-265 for the M4 floating bridge :

https://radionerds.com/images/e/e1/TM_5-265_BRIDGE_FLOATING_M4.pdf

H.P.
Tank1812
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Posted: Saturday, August 22, 2020 - 08:35 AM UTC
What are people’s thoughts on the Royal Model tire set.
barkingdigger
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Posted: Saturday, August 22, 2020 - 11:10 AM UTC
I haven't seen them in real life, but the CAD image they use suggests very square treads that look a lot like the Italeri kit wheels - which we know are wrong.
Tank1812
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Posted: Saturday, August 22, 2020 - 10:13 PM UTC

Quoted Text

I haven't seen them in real life, but the CAD image they use suggests very square treads that look a lot like the Italeri kit wheels - which we know are wrong.



Ok, thanks for the information.
165thspc
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Posted: Sunday, August 23, 2020 - 04:04 AM UTC
Tom you might try contacting DEF with the idea of purchasing just two additional tires and giving them an idea what you are doing as they might (long shot) be interested in packaging a nine wheel set.

(I know you wern't born yesterday so if you were going to do this you have already thought of it - Sorry)

A similar attempt on my part worked out very well with Scale-Link back in the day.
barkingdigger
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Posted: Sunday, August 23, 2020 - 06:24 AM UTC
Hi Mike,

I thought about it, but as I plan to do a bolster truck and a CCKW towing a trailer on MD wheels I figured it is easier to just buy three sets - that way I'll have two left over for other projects or to donate to a worthy cause!

(And based on past experience with other firms, I wasn't relishing the prospect of the usual communication issues...)
165thspc
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Posted: Monday, August 24, 2020 - 09:58 AM UTC
Check
Tank1812
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Posted: Tuesday, September 08, 2020 - 11:58 PM UTC

Quoted Text

I haven't seen them in real life, but the CAD image they use suggests very square treads that look a lot like the Italeri kit wheels - which we know are wrong.



They are the Italeri wheels, kit and Royal wheels. I couldn’t find them cause I already stuck them in the Tamiya CCKW kit.
https://imgur.com/a/jJqpX94
barkingdigger
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Posted: Wednesday, September 09, 2020 - 01:10 AM UTC
Hi Ryan,

Sorry to see that! I suppose it's easier to pirate a kit part than to make a new, corrected master...
Tank1812
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Posted: Wednesday, September 09, 2020 - 02:26 AM UTC

Quoted Text

Hi Ryan,

Sorry to see that! I suppose it's easier to pirate a kit part than to make a new, corrected master...



Them, like a number of companies don’t research parts. They attempt to enhance kit parts in resin. It is what it is.