I could probably experiment from now until the end of time to correct this problem but I am hoping someone experienced this with the DDust or a similar plane and knew how to fix the excessive yaw. If that is what it is called.

my set up is simple : Mag .28 engine
DDust measurements are 16 length x 28 width.
prop is a master airscrew 9x6
I have wheels on the front with the toe in factor which does absolutely nothing for
the ddust.
the all up weight is 2lbs 2 oz.

My first guess to solve the problem would be to use a smaller prop.

Thanks for all replies.

I would hazard a guess that the prop doesn't have much to do with it. Slow take off speed caused me a right roll/smack down but that was with a small plane (not a delta) and it was probably a low speed stall.

My ddust with a 46fx and 9x9 is somewhat slow off the mark but tracks straight as an arrow at any speed is why I say it's not your prop. It is a very sensitive plane and only requires small inputs (34" span and throws are only 1/4" up/1/4" down for full elevator)

Having said that, I would drop down to maybe an 8x8 or 7x8 (if there is such an animal). You want the higher pitch to get the higher top end. Mine sags a bit on launch but pulls out nicely after about 40' and will hit 100 mph on the straights.

I'm back to post I fiqured out what I need to do with the engine and the way it is mounted in order to get rid of the excesssive right yaw/thrust when trying to ROG my DDUST. Thanks for all of the replies with this problem.