
Tank and armored fighting vehicle design has always been an interest of mine. I served in the Canadian Army in the branch that maintains these sorts of vehicles, and even worked in a rebuild and overhaul facility in Montreal for Leopard tanks and other large military armored vehicles. It was a fun time!
At the time, the tanks being rebuilt were the Leopard C1 (a Canadian variant of the German Leopard 1). Many revered to it as the “Panzer VII”, as it was Germany’s first tank design since World War II. It intrigued me enough to see what they’d done differently from their World War II tanks that I began to dig. I found an interesting watershed in design theory half-way through the war. Germany started with the PzKw I and II (PzKw stands for Panzer Kampfwagen, or simply Panzer, and the number refers to the model number of the tank design). These were training tanks that were pressed into service because newer tanks were not availble in greater numbers. The PzKw III was the main maneuver tank and the PzKw IV was the heavier infantry-support tank. The PzKw I was quickly ditched as obsolete, and the PzKw II was used for reconnaissance only as the war progressed. Everything changed in 1943, when Germany introduced the PzKw VI Tiger I tank. It was a huge beast of a vehicle, with a gun that could kill any armored vehicle in the known world. The PzKw V Panther tank (don’t ask me why they’re out of order) came shortly after, with another excellent gun and huge amounts of armor.
So the design philosophy had switched from maneuver tanks that favored the attack to battlefield dominance tanks that could rely on their armor for protection and dominate an area with a very big gun. What was the watershed that changed the philosophy? Many say it was Germany’s encounters with the new Soviet tank, the T-34. It was certainly a shock, and probably the design impetus for the Panther, but the Tiger was planned and was nearly in the field before the Germans became aware of the T-34. So what made them go from the maneuver tank of the PzKw I, II, III and IV to the behemoth of the Pzkw VI Tiger I. It’s something that makes me go “hmmmmmm….” I’d love to hear from anyone out there with ideas on why this occurred. Was it a change at the head of the Tank Design authority in OKW (army headquarters)?
As to the PzKw VII (it’s not really labeled that, but it feels like a natural extension from the Panther and Tiger) Leopard had some fantastic innovations. It sipped gasoline compared to the previous monsters, and it flew across the battlefield. An experienced maintenance crew, with the assistance of the tank crew, could change the engine, complete, and get the tank back on the road in a matter of 30 minutes. No kidding. 30 minutes to disconnect, remove the old engine, put in the new engine, reconnect it and drive off. Truly amazing. It had one of the first computers for stabilizing the gun while the tank moved (an analog computer, at that!) It was quite a tank, but it eventually became obsolete. Still, it gives insight into the minds of the philosophy makers in the German army. It seems that they went back to maneuver over protection in this design.
So there you have it. Why the big change half-way through WWII for the German tank design philosophy. Inquiring minds want to know!






Twitter is a great social media tool for keeping friends and family up to date on what you’re doing. It’s a micro-blog, meaning that you have a very small amount of text for each entry. It’s difficult to come to grips with a relevent idea or solid concept, because of the size of each blog post (or tweet). So how could this be useful for a job search?