Pedes plani concludes longitudinal or transversal lowered feet-bow (Pes plana longitudinale et Pes transversoplanus). The Research goal was to note Pedes Plani expression at cadets, and gymnasialist in year 2006.Research sample concluded 80 subjects, 40 cadets of Air forces, male gender, 16-18 years, and 40 Army gymnasialist. Feet deformation was metodologichy expected by, 'Chizin' in mm. Researchers results were: at Air force cadets was 14,52 % of Pedes plani present, and at Army gymnasialist 18,54 %, with more significant presence of this deformitete at army gymnasialist and p<0,005, what is concerned, camting on lower selection cryteryums of this sub-population, but paradoxally, concluding that pilot's feed isn't of big importance, as to their colleges troopers.