RE: Yak 86" Ballance
I have only 2 flights on the models but 182mm looks perfect.
The batteries weigh 99gr each and I have 3 of them as you see.
Landings are smooth and slow, no problem at all.
I'm waiting for a new aluminum spinner and carbon fiber landing gear and a 6.0v NiCd Battery pack to be installed in the motor box for the smoke pump, then I will know the final weight. I'm expecting the weight at 7,5kg more or less.
Also the smoke tank to be fitted is a smaller one (280ml) and not the one shown in the photo.