The Enero is the first of the Philippines' Maraco project, where they make a tank each year for 12 years and name each year's tank after a month. Here's the one designed in 1952, Enero/January. It went on to be one of the most used tanks of the Philippines up to 1973. It had a top speed of 90 kilometers per hour and had a main gun with a caliber of 105mm. Its turret front and most of the hull front had an armor thickness of 105mm, while the rest of the hull and the turret sides had 65mm of armor. The rear of the turret had 20mm and the top had 10mm.