Since Xlucine suggested it in the general AFV thread, here is a new version of the old Tank ID thread that used to exist at the WoT forums, back before the great exodus to SH.
The rules are simple. Post a picture of some sort of AFV and everyone has to try to name what it is. Try to avoid posting a new picture until the previous picture is identified. Generally, the person who was first to correctly ID the picture in question gets to post the next picture, unless they want to pass. If a picture is not ID'd in a day or two, the person that posted it should say what it is and bask in their own sense of superiority. They should then post a new picture for the sake of keeping the thread moving. Please, no fictional tanks, paper napkin drawings that never made it to prototype or pictures where the vehicle in question is obscured or particularly hard to see. Also, if posting a picture of an unusual variant of a relatively common vehicle, be sure to note that you are looking for the specific variant name, not just the general family of vehicles it belongs to (for example, if I post a picture of a Panzer IV with the hydrostat drive, I would say in the post something like "What makes this Panzer IV unusual?" since everyone can ID a Panzer IV)
It is perfectly ok to shame those that make spectacularly wrong guesses. That's just how we roll around here.
Part 5 of a multi-part series. This one's got the goods.
Sherman and firefly.
Early Valentine. The British really went through a phase where they slapped 2 pounders onto everything.
Comet, aka Hipster Centurion.
Centurion, aka The entire History of South African tanks post-WW2.
T-shirt cannon Churchill.
Combat engineers get no respect.
This thing is tiny and has an insane steering system.
Somehow this thing is even smaller. Those twin barrels are for a flamethrower of some sort, because the Italians were world-class optimists.
Sooooo...after doing a site-wide search and perusing Google, I'm surprised not to have found anything about tank suspension, other than a somewhat doubtful thread on the WoT forums. Would my learned colleagues of SH be able to assist me in understanding and identifying the different types of tank suspension? I think I've got leaf-spring more or less mastered, as well as both VVSS and HVSS (thanks, JGT!) but was somewhat embarrassed not to be able to differentiate between the suspension of a Type 97 Chi-Ha and an FV4201 Chieftain.
UPDATE: I think I understand tank suspension better now. Thanks, everyone!