Reading the propeller theory line made me frown and shake my head... Then I grabbed a few expended X bullets and looked carefully... Several things surprised me.
The bullets mostly came from a jug at the Barnes booth at SHOT, BTW.
First, the petals at final resting position are actually riding with the leading edge slightly forward on almost all of them! I would have expected the opposite due to the way they are bent back to trail both forward and rotational motion.
Second, the combination of large frontal area and the petals sticking out probably develops significant lift due to the reduced area on the back sides of the petals.
Third, the petals flatten on the former outside surface creating a ridge or hump on almost all of the petals, again, increasing the surface area of the top of the produced propeller compared to the lower surface.
It seems doable...
Mark Begich, Joaquin Jackson, and Heller resistance... Three huge reasons to worry about the NRA.
