Category:Avia M431
This engine was built in 1947 at the former Walter factory. It has nothing to do with the Avia factory. It began to produce Walter engines in 1964.
Media in category "Avia M431"
The following 2 files are in this category, out of 2 total.
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Letecké muzeum Kbely (16).jpg 4,416 × 3,312; 2.79 MB
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M-431 pic1.JPG 3,648 × 2,736; 4.4 MB
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