RE: Pusher Prop for TH .75
Of all the props I have tried the 12x6 zinger pusher makes the most thrust and gave the highest top end. The downside is they succumb to pebbles or landing bounces very easily, so much so that I use an 11x7 apc. I would love to try an apc 12x6 pusher if there was such a thing.
I just sent APC an email asking them to consider making a 12x6, 13x6 for engines like this, there are many popular airframes these days flying .75 engines which could benefit from these. We shall see.