Excellent design but there is no notion of size in the description. It would be nice if I knew the dimensions before downloading. 

Very well done, th...

Popped into my assembly without a hitch.

Modelo conceptual adecuado para los propósitos demostrativos

I used this model to complete a submarine project I''m working on with my son.  Saved us a lot of time becuase I''ve never drawn a propeller before!