A lot of Pe-2 airplanes were equipped with ski undercarriage during the winter of 1941-42. Reliability of ski fastening and durability of the lockers were sufficient. But the speed of plane reduced by 34km per hour. Besides that the original Pe-2 had high cross-country ability and maneuverability even in deep snow. Therefore the ski undercarriage was not widely used.
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Triangles, hexagons, rhombuses, chevrones and etc mask template
Buggy Mongoose. The Ukrainian Battlefield evacuation version