M4 Track Tension

Illustration of correct and incorrect track tension on the M4A2 tank from the M4A2 technical manual. The tank crew were instructed to inspect the track tension regularly and tighten the track if it shows noticeable sag.

M4 Sherman Tank Tracks

Track with insufficient tension

Tank Tracks

Track with proper tension

Source: TM 9-731B: Medium Tank M4A2, War Department Technical Manual, January 1943.

Warsaw 3-D Documentary

City of Ruins is a new documentary film featuring 3-D sequences showing the destruction in bombed-out Warsaw after World War II. The documentary movie from the Warsaw Uprising Museum was directed by Oscar-nominated director Tomek Baginski.