ptcruiser
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Post by ptcruiser on Jun 8, 2009 9:40:34 GMT
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Post by iansadler on Jun 8, 2009 18:23:20 GMT
Hi I think it started out as a Tipper as per the new Emhar Kit , cheers ian
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Deleted
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Post by Deleted on Jun 8, 2009 19:19:56 GMT
Nice one Richard, that crane should be reasonably easy to replicate.
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Post by okdoky on Jun 8, 2009 19:32:38 GMT
Hi there
Is there really such a major difference between the front and rear track for each axle there as it looks in the picture?
It looks massive at the rear in comparison.
Nige
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Post by Deleted on Jun 8, 2009 19:53:12 GMT
... Is there really such a major difference between the front and rear track for each axle there as it looks in the picture? Looks that way Nige? |
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ptcruiser
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Post by ptcruiser on Jun 8, 2009 20:28:43 GMT
Hi I think it started out as a Tipper as per the new Emhar Kit , cheers ian Hi Ian, after posting I looked at the tipper builds on this forum and I think you're right. Maybe a little stiffer/taller springing to cope with the loading to give it a 'tail high' attitude unloaded. Hi there Is there really such a major difference between the front and rear track for each axle there as it looks in the picture? It looks massive at the rear in comparison. Nige Judging by the head on shot you'd have to say yes Nige? If you check out the tipper build picks, there is quite a wide track at the rear compared to the front? Nice one Richard, that crane should be reasonably easy to replicate. That's what I figured Nick  Break out the Plastruct.... |
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Post by Deleted on Jun 8, 2009 21:12:56 GMT
Just wondering rich, if you got the name and address of the bloke who owns the truck, maybe we could trace the history? ... even source a set of chassis drawings?
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Post by Ted Taylor on Jun 8, 2009 22:17:02 GMT
You are correct the front track is narrower than the rear, the model has 75mm front and 85mm rear appx. but you have twin wheels at the back and the chassis has straight rails so it has to be, except on military vehicles where they use a single rear wheel so you only have a single tyre track to run on off road situations.
Ted
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ptcruiser
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Post by ptcruiser on Jun 9, 2009 8:04:31 GMT
Just wondering rich, if you got the name and address of the bloke who owns the truck, maybe we could trace the history? ... even source a set of chassis drawings? Hi Nick The guy that owns the bus has part shares in the truck! You may have noticed a very similar colour scheme? I'm hoping to catch up with him in the very near future with regards the bus in order to photo/measure with a view to producing my own drawings if they don't have any I can borrow. I'll naturally ask about the truck as well, no opportunity to be wasted Rich |
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ptcruiser
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Post by ptcruiser on Jun 9, 2009 20:55:17 GMT
Well that was a visit worth making. Total access, no holds barred, great couple of chaps; watch the buses thread for developoments Reference the recovery truck; the owners acquired it with the recovery crane already installed and in quite a state but they are of the belief that it did start life as a tug. It shares the same chassis as the tipper, but the chassis is shortened aft of the rear axle. Unfortunately the recovery truck is not stored with the bus  I am now waiting for copies of all the chassis variants, with measurements, taken from the manual. I've also been promised excerpts from the sales brochures of the time. I'll be downloading my camera during tomorrow and I have what I think will be pretty definative shots of the engine bay (from the bus). I'll put a couple here. Rich |
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ptcruiser
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Post by ptcruiser on Jun 10, 2009 8:34:57 GMT
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Post by iansadler on Jun 10, 2009 11:43:59 GMT
Hi Rich , you are a star many thanks cheers ian
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Post by voyager on Jun 11, 2009 17:55:52 GMT
Those shots are brilliant!
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Post by brianthemodeller on Jun 12, 2009 9:08:23 GMT
Great - thanks for the shots of the compressor, now where is the engine?
Brian
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ptcruiser
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Post by ptcruiser on Jun 17, 2009 15:41:11 GMT
Just wondering rich, if you got the name and address of the bloke who owns the truck, maybe we could trace the history? ... even source a set of chassis drawings? Okey Dokey, these have all been scanned from photocopies of the original manual: First is for the 5-ton short wheelbase end tipper Model OSBT as per the Emhar kit. It is identical to the 3-4 ton OSAT.  The next is for the OSS Tractor unit. The information I have been provided with suggests that the tractor unit is a Bedford-Scammell combination with coupling gear also supplied by Scammell. As far as I can tell, it is identical to the OSAT/OSBT with the exception that the small blocks above the rear suspension upsweep are removed.  The following shows the lubricating points, but also adds in the axles, transmission and suspension  and finally:  With regards the wider rear end mentioned above, the drawing indicates that the centre-line tracking of the front axle (5'4") is equal to the centre line of the twin rears for the 5-tonner, an inch wider at the front (5'5") for the 3-4 tonner. With regards to the chassis itself, these are dimensions also provided relevant to the OS: Overall length: 18' 4" (5585mm) Width of frame - Front: 2' 10 5/8" (879mm) Width of frame - Rear: 2' 10 5/8" (879mm) Upsweep - Rear: 2 3/4" (69.849mm) Depth of side members: 7 17/32" (203.20mm) Flange Width (max): 2 1/2" (63.499mm) Thickness of frame: 7/32" (5.556mm) Enjoy Rich |
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Break out the Plastruct....
