Maat 4 is the next successor to the Maat series for competitive flying. The Maat 4 uses Zone V2 profiles, allowing for a wide range of speeds. The geometry of the model, precisely modeled transition angles and UMS materials guarantee the best flight characteristics that can currently be achieved. The fuselage has a changed concept of the front of the fuselage compared to the Maat 3. On the Maat 4 there is a removable cone for faster ballast replacement. The ballast has a lock on the underside of the cabin and a shaft under the wings. The fuselage has round pins around the wing nuts, on which the wing is mounted. The pins hold all the weight to the side when throwing.

The Maat 4 model has all the servos in the cabin to achieve the lowest possible weight of the model. Only in the Strong version does the Maat 4 have two servos for the flaperons in the wing.

The wing and tail surfaces are made of biaxial carbon with a Rohaccell core. All molds are duralumin, guaranteeing absolutely precise shapes. The molds are heated to a temperature of 80 °C, which achieves perfect smoothness without an "orange surface". A suitable receiver is the Jeti R5 L. The servo mount is prepared for 2 x KST X 08 and 2 x KST X 06 servos.

The model weights are divided according to the weather conditions for which the model is intended:

• Light 215 g (up to 3 m/s)
• Middle 240 g (up to 6 m/s)
• Strong 260 – 330 g