Domestic top experts for aeronautical development, construction and modelling have designed the Viper SD4 from the first to last screw in Prešov, where precision metal semi-finished products are subsequently carved with the most modern laser technologies. These are then machine-bent and shaped into precisely designed compensators for the construction of the basic centerplane, rectangular wings, tail surfaces and other parts. Finally, the engine is mounted and instrumentation is installed, culminating in the inspection and take-off of the finished aircraft by a professional test pilot.