rc_wings or anyone thinking of using the Super Tigre .51…..

I started off with the 12X6 yesterday. Up from the 12X4 and 12X5 previously. I’m still running the engine a little rich. Also I am using FAI (no nitro) fuel. Anyway, the 12X6 is a pretty good prop for this engine in this aircraft weight range. However at full throttle it pulls the “Smith” along pretty darn quick. Of coarse there is the throttle stick. It doesn’t have to be all the way up.

I put up one flight with a 13X4 prop. There are pro’s and con’s with this prop on my plane (at my planes weight). I liked the speed and pulling power with this prop. Take off run was stable (no excess torque to the left) But it would help cause some thing to be very cautious of when going vertical. One example being on a stall turn. As I cut back throttle to around 1/4 to bleed off speed (while going vertical) I waited too long to pull the throttle back to idle and kick the rudder and the thing went right into a quick torque snap. Also I was hanging it on the prop once with a lot of rudder and elevator stuck in it to hold it in place and found the plane did not like it. It went into a violent unexpected snap roll/spin. This prop pulls some crazy static thrust and the torque to go with it. All I am saying here is be careful if you try this prop. Until you get use to it unexpected things might happen. It also might be me and/or my plane since it is a little heavy.