B Gearbox- VS- C Gearbox

[dalords]

What is the advantage of a C Gearbox over a B Gearbox?

[t j]

Stronger-can use a prop with more inertia.

Smoother-rubber coupler dampens vibration.

More gear ratios available.

Heres an article that gives all the poop. http://www.cps-parts.com/cps/pdf/Part25.pdf