Hello Nico,
I'm sorry but I don't agree. The propeller of Airfix's BV 141 B doesn't rotate in the incorrect way. But I must admit that there is no security to avoid building it on the wrong side. But the shape of the blades is a clue.
Here is mine built about at the same time as yours (Maybe in 1971) :

Nowadays more documentation has been published and I don't understand that famous manufacturer as Trumpeter makes this mistake...
30 years ago a minimum of accessible documentation did exist and a complete two-part article had been published in "Flying Review" (July and August 1964) which helped me to build this 1/72 scale kit. I used this aricle to build a second one with all possible details :

Blohm und Voss BV 141 B

Blohm und Voss BV 141 B
I should like too that a manufacturer issue a BV 141 A prototype.
Jicehem

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