The Two‐Bladed Airscrew: A Discussion on Mathematical Lines of Certain Peculiarities and Disadvantages Available to Purchase

APPARENTLY two‐bladed airscrews are acro‐dynamically more efficient in traction than multi‐bladed varieties, and, moreover, are easier to manufacture. Furthermore, they are simpler to transport. There were, however, decided drawbacks peculiar to the two‐bladed airscrew. The more important of these are here discussed.