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Post Info TOPIC: Mk V tank in Meccano


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Mk V tank in Meccano
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I'm working on a fairly large scale model in Meccano and am using the 1/35th scale model by Meng as a very useful reference.

I'm currently trying to understand how the levers and rodding work on the brakes - in particular on the nearside where you seem to have two separate inkages acting on the same brake control shaft. I can't find any images or specific info on-line. I've written to Bovington and am hoping they might be able to assist. In the mean-time it would be great if anyone on the forum can shed light on the subject.

Couple of photos of the Meng model are to help illustrate the levers concerned.


David 



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Legend

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The question is - which brakes? The Mark V had a planetary transmission system which was engaged by a brake ( I think it was the foot brake).

There's a thread with some links to other material on this forum at:

https://landships.activeboard.com/t64438088/walter-wilsons-epicyclic-transmission

Regards,

Charlie

 



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Cheers Charlie. I've been through the tread and the links put up but these are not really answering the fundamental questions of how the linkages act on presumably the the brakes.

David

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There are two brakes in the Mark V - a brake for the epicyclic transmission and what Wilson, in his patent, calls a "stopping brake".

The brake for the transmission is implemented as a band which goes around the outside of the epicyclic gearing (sometimes referred to as a planetary gearing).

When applied the outer ring of the epicycle is prevented from rotating by tightening the band and the epicyclic gear goes into "drive". [There's a link in the thread I posted to a video on the M48 transmission which shows how an epicyclic gear works].

I don't know how the stopping brake was organised on the Mark V - hopefully there are drawings (somewhere) of this. Have you asked Bovington about this?

Charlie

 



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