Flyer-that's what I want, but everything has to retract.

I got in the set of Robarts today and they are heavy. I may have to re-think the tip floats. It may be lighter to use a servo in each tip unless I can find some mechanical retracts that will work from the other direction. Do they still make Goldbergs?

As for how far out in front, from what I read, it is different for twin floats and for a single float and I know there can be a lot of variation.

I read that twin floats need to be 75%-85% of the fuselage length and should extend 1/3 prop length out in front of the prop.

In the same article, I read that a single float need to be the same length as the fuselage and extend 80% of the prop diameter out in front.

Virtually everything you see and read on float planes is for twin floats. There does not seem ot be much out there on a single float or many people who have experience on them.