Simba guru SR mota modelling test R&D modhi (gadzira, uye shanda pamwe nevashandisi) Kukurukurirana kwehunyanzvi neHaerbin Industrial University Nyanzvi dzemumba nedzemhiri kwemakungwa dzinobatana pakutaurirana (US, NZ) SR mota modelling bvunzo yekukodzera nzvimbo yebasa Rotator performance test crew