The F2B models in the presence, weight 1350 gm without engine.
Under engines Stalker 61 in the cylinder sideways. Motor mount D16T, under the crankcase 38 mm. Hood under the spinner diameter 67 mm. Wingspan 158 cm, length 114 cm, wing root 355 mm, ending 240 mm, fuselage shoulder 280 mm from the edge of the flap, 355 mm from the axis of the flap. The scope of the stabilizer is 680 mm. All collapsible, composite. Spare parts support.