FIELD: diagnosis of variable-incidence blades of circular stages of ground turbo-machines and gas-turbine aircraft engines. SUBSTANCE: device includes rigid rod on which rocker arm, adapter bush fitted with bracket and indicator and swivel bush with collet chuck secured on it. Swivel and adapter bushes, as well as rod and rocker arm form flat articulations between them; rocker arm is provided with locking projections. EFFECT: enhanced reliability of diagnosis due to quantitative estimation of degree of wear during shutdown of turbo- machine and during scheduled maintenance of gas-turbine engines. 5 dwg
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