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Mystery Crawler......

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4 years 4 months ago #216365 by gauntjoh
Here is a challenge, who can identify this crawler and give something about it's history ?




John Gaunt, ACMOC President and Director, UK
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4 years 4 months ago #216370 by ianoz
Replied by ianoz on topic Mystery Crawler......
At a guess ,a David Brown DB4 .During WW2 Cat sent David Brown the Blueprints of a Cat D4 . I think a meadows engine was used to power them instead of a cat engine copy .

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4 years 4 months ago #216376 by gauntjoh
Replied by gauntjoh on topic Mystery Crawler......

At a guess ,a David Brown DB4 .During WW2 Cat sent David Brown the Blueprints of a Cat D4 . I think a meadows engine was used to power them instead of a cat engine copy .


Hi Ian, You win the prize, well done.

It was a Dorman Ricardo engine and all the threads, nuts and bolts they used were changed from UNC/UNF to Imperial (Whitworth and British Standard Fine - BSF).
Only 110 were made and there are a few in preservation here in the UK. The government contract against which these were built started David Brown in the crawler market and I have one of their DB Trackmaster Diesel 30 tractors in my collection, one of only approx. 500 made in the early 1950s.

According to my information, the UK government sent a D4 2T to Meltham (The home of David Brown) where they stripped it down completely and thoroughly cleaned all the parts so the draughtsman could make drawings of them. They never considered copying the engine as it would have been too expensive to tool up for it.

John Gaunt, ACMOC President and Director, UK

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4 years 4 months ago #216378 by dewets
Replied by dewets on topic Mystery Crawler......
Wow! Thanx for the info!

That second photo must have been taken at a Little Casterton Harvesting day!

Somerset West, Cape Town
South Africa

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4 years 4 months ago #216382 by gauntjoh
Replied by gauntjoh on topic Mystery Crawler......

Wow! Thanx for the info!

That second photo must have been taken at a Little Casterton Harvesting day!


Hi dewets,
I'm not sure if the second picture was taken at Great Casterton. The scenery doesn't look like Casterton but it is for sure the sort of tractor that they would have working there.
Sounds like you have attended Great Casterton in the past. It really is the premier UK working event in my opinion and until the last couple of years was hosted by Arthur Hinch, founding member of Chapter 2 and collector of Caterpillar an Allis Chalmers crawlers.

John Gaunt, ACMOC President and Director, UK

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4 years 4 months ago #216556 by dewets
Replied by dewets on topic Mystery Crawler......

Hi dewets,
I'm not sure if the second picture was taken at Great Casterton. The scenery doesn't look like Casterton but it is for sure the sort of tractor that they would have working there.
Sounds like you have attended Great Casterton in the past. It really is the premier UK working event in my opinion and until the last couple of years was hosted by Arthur Hinch, founding member of Chapter 2 and collector of Caterpillar an Allis Chalmers crawlers.


Hi GauntJoh! Yes we (brother & myself) were there in 2008. We're still reminiscing about the experience! And drooling over some photo's of kit that we saw. We also had the pleasured privilege of operating a lovely R2 that had been repowered with a J series diesel engine.

We had the pleasure to meet Arthur Hinch, and a few other ACMOC'ers too. Cheshire Cat was the one who took us to Arthur and then Arthur graciously showed us his collection of Cats, and we were gobsmacked by it. And also the winnowing shed, where Arthur explained to us how it was used in days gone by.

The king of the day, Ron Knight, took us South Africans to task for allowing our steam train loco's to be scrapped!

And of course, the Battle of Brittian flypast with Lancaster, Spitfire and Hurricane was indeed a cherry on the cake!

Somerset West, Cape Town
South Africa

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4 years 4 months ago #216560 by ianoz
Replied by ianoz on topic Mystery Crawler......
We have a David Brown 30 TD and a 30 T . Also have a Fowler Leeds 3-30 and a couple of Fowler VFs .Both the VFs are the early spoked idler ones . Fred Evans {Fowlerman }Called in to visit while he was here in Australia . Got to have a drive of the 3-30 . Know of two 3-30s in the UK . One in New Zealand and an incomplete one in Tasmania .
Also have a BTD8 to round out the British crawlers .

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