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.
Some of you may have seen this pic recently on WT forum, in some thread arguing the protection of JGSDF Type 90:
Discussion on WT forum
To be straight, the Chinese annotation in the table said it is just a GUESSING.
This annotation could be totally nonsense but unfortunately a barrier between languages prevent you guys see throught it.
In fact, again, this document itself is about JGSDF Type 10 MBT, not Type 90.
Same trick, different people, huh?
JGSDF specification handbook of Type 10 MBT
page 59, Appendix B, performance (regulations) and data
Let's talk about these regulations and how they were made and encrypted.
You may know that Japanese have Hirakana and Katakana, like Latin have letters and capital letters.
As you can see, some of the most crucial numbers and descriptions are covered by a Hirakana or Katakana or Romaji(Latin letters).
These numbers and descriptions were collected and listed in some append book, called Bessatsu(別冊).
When you look up to the append book, just like viewing the answer sheet of an exam paper. But when numbers and descriptions were censored, you'll never know what it said.
For example, the frontal protection:
“耐弾性 - 正面 - 正面要部は、【あ】に射距離【え】m相当存速において、貫徹されない。”
耐弹性 - 正面 - 正面重要部位可抵御【あ】以相当于射击距离【え】米存速的射击，不会贯穿。
It read like this:
Protection - Frontal - Frontal crucial part should withstand 【あ】 firing at a distance of 【え】meter speed reduce equivalent, and not penetrate.
【あ】stands for certain type of ammunition, probably APFSDS, but don't know whether it is production shot or experimental.
【え】stands for certain firing distance, could be 1000 , 1500 or 2000 (meters), but on such a long distance, shot could be effect by wind and gravity, thus cannot aim on the protection area of target vehicle precisely.
The usual solution is to fire from a much closer range, from 200 to 550 meters, while reducing the propellant charge so that the end speed of AP shot could match the speed drop on certain distance. This is an equivalant method.
Some people argue that Type 90 MBT can withstand AP shot (JM33) firing from another Type 90 MBT, on a distance about 250 meters. The source of this statement came from an unknown video clip, which they have never seen. Firing on closer range is for better aim, and they could have use reduced charge to simulate a much longer range, but we cannot prove.
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!