Pics (CAD) of Raingutter Design
Posted: Fri Sep 15, 2006 10:28 pm
Here it is, our first RR... trying for a fast boat.
The pontoons are about .5" thick, they'll sink in (at level plane) about .18" (balsa wood).
The rudder is huge to help keep her straight... but it is the actual size of a supplied rudder trimmed some...
the sail is low and enclosed, circular.
We will be using straws.
Weight is about .0433lbs (.7 ounces).
We focused on getting the CG behind the Fb (buoyancy force center)... as a slight rear-heavy design to counteract planing torques from blowing (and the sail is fairly low).
Also focused on getting the sail on top of the CG to minimize steering torques from non-direct blowing.
Construction starting tomorrow.
We have 1-1/2 weeks to practice and troubleshoot.
-Terry
http://i5.photobucket.com/albums/y159/T ... Slide6.jpg
http://i5.photobucket.com/albums/y159/T ... Slide5.jpg
http://i5.photobucket.com/albums/y159/T ... Slide4.jpg
http://i5.photobucket.com/albums/y159/T ... Slide3.jpg
http://i5.photobucket.com/albums/y159/T ... Slide2.jpg
http://i5.photobucket.com/albums/y159/T ... Slide1.jpg
The pontoons are about .5" thick, they'll sink in (at level plane) about .18" (balsa wood).
The rudder is huge to help keep her straight... but it is the actual size of a supplied rudder trimmed some...
the sail is low and enclosed, circular.
We will be using straws.
Weight is about .0433lbs (.7 ounces).
We focused on getting the CG behind the Fb (buoyancy force center)... as a slight rear-heavy design to counteract planing torques from blowing (and the sail is fairly low).
Also focused on getting the sail on top of the CG to minimize steering torques from non-direct blowing.
Construction starting tomorrow.
We have 1-1/2 weeks to practice and troubleshoot.
-Terry
http://i5.photobucket.com/albums/y159/T ... Slide6.jpg
http://i5.photobucket.com/albums/y159/T ... Slide5.jpg
http://i5.photobucket.com/albums/y159/T ... Slide4.jpg
http://i5.photobucket.com/albums/y159/T ... Slide3.jpg
http://i5.photobucket.com/albums/y159/T ... Slide2.jpg
http://i5.photobucket.com/albums/y159/T ... Slide1.jpg