Negative contact on the DUKW. It must have been thrown out during the last cleaning.

Just going to jump in here as long as some one is talking about wheels for the 2 1/2 ton.
What GMC would use 9X20 wheel? Ihave 2 sets of the KMC GMC 9X20 .
On the subject of water tanks I have 3 tanks glued together, one has the covers on, the other two don't, 2 parts 111, 1 part 112 and 2 sets of fenders.Every thing else got lost.
If any one thinks they can use them their free.
As I do some more cleaning out I will post some parts and kits.
Dave M

Stumbled into this thread. So where does one get a set of aftermarket tires for this beast err fowl. If I get replacement/correct tires for my kit, I might donate the kit tires to the cause.

Cheers

Wasn't it NKC ? Some postwar French Army CCKW's used in North Africa were fitted with sand wheels :



H.P.

The reason I am looking for the super single tires off the Italeri DUKW is because I want to build this bolster truck and trailer and need additional super single tires.

I have enough for the truck but not for the trailer.

Besides there are other US trucks and trailers I would not mind building!

Hi Mike,

These are probably 9.00-20 MS tires on combat rims, rather than 11.00-18 MD "DUKW" tires. They have a sharp shoulder between sidewall and tread, and don't appear to bulge at the bottom the way softer DUKW tires do. The 9.00-20 and 11.00-18 have the same outer diameter (40"), but obviously very different rims (2" difference in "seat" diameter).

Curiously the data sheet for the 530-series fire truck lists 7.50-20 "standard CCKW" tires, but elsewhere I've seen 11.00-20s mentioned. However, everything I've looked at says the 11.00-20 (as used on Ward Lafrance M1 wreckers) uses a wider 20" rim with 10 hub bolts that clearly cannot fit on the 6-bolt hubs of a CCKW! (The 9.00-20 rims are 6" wide at the seat, while the 11.00-20 rims are over 8" wide...)

There are 9.00-20 kit tires out there in 1:35 - the Tamiya M8 & M20 have them - but they are on the wrong rims for this pic. I'm currently CAD'ing up a correct set of 1:35 11.00-18 MD "DUKW" wheels for 3D printing at Shapeways, and may turn my attention to the 9.00-20 MS wheels seen on this truck afterwards.

Tom that sounds like something I would definitely be interested in!

I wonder if I could get you to turn your attention for just a moment to the tire/rims used on the Mack NO6 and the PC&F Dragon Wagon? Not to produce the tires digitally, I just ask that you share the statistical information as you did above.

It is my understanding that the tires used on both vehicles were identical however I it is my understanding the rims on the Mack where narrower and therefore the tire stood taller than on the DW.

Could you please confirm this?.

I'd need to dig for TMs to get specs (I haven't even thought about Macks or DWs...), but I doubt they'd mount the same tire on different-width rims, as it could affect the ability of the tire to seat properly. But I'll let you know. BTW, I've looked at a number of MV-owner websites, and there are health warnings over putting large tires on CCKWs designed for the smaller (36" outer diameter) 7.50-20s because they can rub when going over rough terrain. Even putting 40" OD 9.00-20s on the back as dualies can interfere with bodywork, so isn't just a simple swap.

As for my DUKW wheels, here is where I'm at so far:


It still needs a hub, and one of the outer bolt positions gets deleted to make room for the valve stem, but the hard stuff is done! I based it on Kurt's handy cross-section from the USArmymodels web article, as well as this photo of a DUKW I saw recently at a show wearing Goodyear tires on the back:


The same vehicle had a different make of tire on the front (with "US" and "master grip" markings) that did not have the raised flange around the base of the lugs - the sidewall just swept up & over to become the tread. I might make these ones too, as it looks like there were slight variations even in wartime pics depending on manufacturer.

Your work looks fantastic.

My research says the tires where the same (but my findings are hear say not necessarily fact.)

It is my understanding that within conservative limits you can vary the width of the wheel drum for a given tire which will slightly change the finished diameter of the mounted tire and also changes the surface footprint of the tire to ground contact area.

????

Possibly. The Mack used 12.00-24s while the DW used 14.00-24s. They might (?) have used the same rims, but the different tire sizes suggests they had different profiles and appearances. So regardless of the rims, they definitely used different tires.

(I've not had any interest in Macks up to now...)

Does anyone have any more information about this photograph? I am guessing that these DUKWs may be grey in colour (the same colour as the Sherman BARVs) but I guess they could just be faded Olive Drab. Does anyone KNOW the colour or details of the AOS signage?
Many thanks

Here's the caption from the IWM website :

"DUKWs of a 21st Army Group RASC (Royal Army Service Corps) Beach Group company lined up ready for loading onto LSTs at a south coast port, 1 June 1944."

This one may have been taken in the same area...

"DUKWs pass Sherman tanks of 13th/18th Royal Hussars, Gosport, 2 June 1944."



H.P.

Many thanks, Frenchy. I am now thinking that both photographs show faded olive drab coloured DUKWs as the second photograph shows a colour close to the colour of the Shermans. Thanks again.