prop question

iv heard the apc props worked pretty well and put one on my os40 powerd ukey 40. seems to work as well and perhaps a touch better than the zinger wood prop i was running,i think there is a slight increase in line tension and the plane came off the ground sooner,my question is the weight factor.i checked them and the zinger came in at 15+ grams,the apc at 31+.they are both 10/6 props,i wonder if the apc could have a flywheel effect with the extra weight and perhaps increase the performance...hmmmm.?jerry

APC props work well. An 11-4 is a good one for the stock FP.40. A 10-4 Tornado three blade is another one you might try. On a Ukey weight isn't much of a factor until after the fist half dozen crashes. (Epoxy is heavy.) The extra half ounce in the nose doesn't mean much, since it's probably going to need lead in the tail anyway if you want it to fly well. I think one of the reasons the APC seemed better than the Zinger is that APC's are pretty close to stated pitch on both blades. Zingers aren't. Some APC's are badly out of balance, but the pitch is pretty close on the dozen or so I've checked. Btw, I balance APC's by sanding material off the front of the blade & leave the rear alone. I try to maintain the same general shape. For any of you that don't already know this-SAND THE EDGES OF APC PROPS TO REMOVE THE FLASHING. All plastic props are sharp, but APC's are like razors. I learned the bloody way.
I use Zinger props on my ST.46 & .60 when I can't find Rev-Up's (which is most of the time). The pitch from side to side can be off a full inch sometimes. They're generally less than stated pitch as well. I plan on repitching & reshaping them anyway, so it really doesn't matter what they are to start with, but I have to check 'em to see which way I want to go. There is a lot of extra meat on Zingers, they make a good prop kit.
If you can find one, buy a pitch gauge. You can do amazing things by changing the size & shape of a prop a little here & there.