i know this concept has been around for a while now but its the first one ive sseen commercially available....
check out the video at the bottom.
http://www.modelflight.com.au/rc_model_boats/graupner_hydroplane_3d.htm
Alex
check out the video at the bottom.
http://www.modelflight.com.au/rc_model_boats/graupner_hydroplane_3d.htm
Alex