Hi Benjamin
The G-1 is an attempt at a weight shift control helicopter. Basically
is does not work. Safe right up to the point of lift off.
Look at the Safari, Rotorway, Helicycle, or mosquito heli for viable
designs.
all the best
Sean

Benjamin wrote:
does anyone know how much a g-1 helicopter would cost to build?
it is at http://www.vortechonline.com/g1/.
i would also like to know about the time to build and the saftey of it
thank you