FIELD: special-purpose fluids. SUBSTANCE: invention provides multi-purpose aircraft fluid based on aqueous solution of glycols and/or glycerol (ca. 40%) thickened with polymer thickener (at least 0.05%) and/or its neutralization salt, neutralization agent, in particular sodium hydroxide, to provide pH value close to 7.1, a surfactant forming associate with thickener, corrosion inhibitor, colorant, and water - the balance. Thickener contains, wt.%: one or more α-,β--unsaturated carboxylic acids bearing one monoethylenic bond, 1-99.9; one or more unsaturated monomers with preferably macromonomers containing at least one side hydrophobic fragment, 0.1-99; and one or more unsaturated monomer with polyethylenic bonds. EFFECT: increased resistance to drops of viscosity and other critical parameters provoked by action of heat and/or shear forces. 21 cl, 31 tbl
