B_Man wrote:The half cylinder near the drivers hatch is an armored cover for the steering brake cooling vent. I'm not really sure how it vents both brakes but no doubt there was an elaborate, over engineered solution behind it.
My first RC tank was a Heng Long PIV and when I put it next to the Tamiya the differences are pretty noticeable. My old Heng Long is now in line to be converted to a Stug IV otherwise I'll never use it. You do get what you pay for with Tamiya but I wish they would release them without the outdated electronics at a more reasonable price.
Thanks, B-Man! I reasoned that it was some manner of armoured vent, but finding a ready source of Panzer IV named parts is quite a challenge.

At least the Tiger 1 has the Haynes manual to detail and describe individual components.
For anyone wanting to build a unique looking Pz IV then this 'Big Booty' version, located still at the Aberdeen Proving Ground (?), should be the ideal candidate

- Big Booty Panzer IV with hydrostatic drive
It is powered by a 'hydrostatic' drive train. This means, is has no gearbox or drive shafts as such. Instead, a pressurised oil feed drives two motors attached to the rear sprockets...
For anyone wishing to know about Hydrostatic systems, then boggle yourselves with this

but do ignore the 40 secs of frankly
weird intro:
"Get your facts first, and then you can distort them as much as you please"- Mark Twain.