1/72 Scale Biber Bridgelayer & Dingo 1 Vehicle Plastic Model Kit from Revell. 247 parts. Skill level 4. The Biber (Beaver) tracked bridge layer was introduced into the German Army in 1973. This horizontally laid cantilevered bridge offered the advantage over the previous system (scissors or bascule) of a flat silhouette. The Biber can bridge over an obstacle within 2-3 minutes. The 2-man crew can control the whole procedure from the tank and are therefore protected. The Dingo 1 was obtained to provide better protection for the soldiers during overseas operations in Kosovo and Afghanistan. This very mobile cross-country vehicle offers protection against infantry munitions and artillery fragments. A V-shaped deflector on the underbody even deflects most of the explosive power of an anti-tank mine around the body.