Best CG for the Razzle????
 

Trying to get the bugs worked out of my razzle. What have you all found to be the best overall CG and engine thrust angle for this plane.

Thanks,

Edman

Best CG for the Razzle????
 

what engine are you running

Best CG for the Razzle????
 

I have a Saito 100 with an APC 15x6.

Best CG for the Razzle????
 

'morning..
I carefully peeled back the covering just aft of the wing saddle
I made a "hatch" by cutting into the fuse directly where the red meets the yellow just aft of the wing saddle.
By doing so I was able to get the battery pack on the under aft side if the cockpit floor, and I then ca'd in some 1/4 X 1/4 balsa sticks to secure the battery in.
Because the covering is Ultra I just ironed it back down and you cannot tell I was ever in there.
With my OS 91 Surpass the C.G was spot on..
I'm assembling another this week and I'll measure it with my C.G machine and let you all know.

I also have my engine back all the way...had to carve a wee bit of the mount away on the left side but it made a difference.
Be sure to add a few washers to counteract the torq of the Saito...Do it now, trust me you won't get a near vertical line without them.
And when your in hover every time you blip the throttle it will kick left.
I'm talking right thrust BTW.
Good luck,
Oh, did you reinforce the horiz stab? LE and TE top and bottom?

Best CG for the Razzle????
 

i am running a os 91 4 stroke in mine my cg is almost at the far edge of the the limits it flies very well there but i would recomend some expo for high rates as far as right or down thrust i have whatever the firewall has in it (probably none) it is a great flying plane just watch the speed mine will only fly at half throttle and less in level flight otherwise it builds up too much airspeed