Good afternoon folks...

This post was brought on after I looked at an aircraft picture in the below Forum.
Graphic Gallery>Simviation Screenshot Showcase>
Couple of Morning Randoms by Mike
My old grey matter started to kick in...

Here is a Link you might find interesting:
http://ftpcabair.files.wordpress.com/2011/04/gear-etc-v73.pdfThe Dunlop-Marstrand "Twin Contact" Anti-Shimmy Tyre is what I noticed on the Bristol Beaufighter in Mikes Screenshot.
The Anti-Shimmy Designs were used on many many aircraft such as:
Hawker Tempest
AVRO Lancaster
Bristol Beaufighter
Handley Page Halifax
The information in the Link is in a very simple format and very informative.
Anti-Shimmy Designs like the Marstrand Tyre
Chined Tyre fitted to nosewheels for use on wet runways
Block Tread for use on non-paved surfaces
Ribbed Tread for use on paved surfaces
Hope you find the Link informative...

And
It shows how lucky we are to have developers for our hobby go into so much detail on their designs.