Thinking Outside the Boat

CBTF Founders

CBTF Co., formerly known as DynaYacht, came to fruition when Chuck Robinson, Alberto Calderon, Bill Burns, Matt Brown and Peter Isler joined forces to create a radical new appendage design that uses a canting ballast for righting moment and two foils – one forward and one aft of the keel – for side force and steering functions of the yacht.

This design, called Canting Ballast Twin Foil (CBTF™) technology, sprang from the “geek” design of Tom Blackaller’s 1988 America’s Cup Campaign, which featured a forward foil and fixed keel. CBTF Co., based in San Diego, CA, developed technology to swing the keel and control the foils and now commercializes this innovative patented technology.

Over the past few years, moveable ballast has become more and more mainstream as designers seek methods to improve the speed, safety and simplicity of sailing yachts. The adoption of canting-keel systems by most of the “around-the-world” monohull yachtsmen and yachtswomen is a testament to the benefit and safety of the concept. Today you’ll see canting-keel and CBTF designs on a broad range of boats. The production boat, Schock 40, won Sailing World’s “Boat of the Year” in 2001. And many custom boats now use canting keels and the CBTF system, including luxurious cruising yachts by Wally and high-performance racing yachts by Reichel-Pugh.

Movable ballast significantly improves boat performance as evidenced by its growing popularity on racing and cruising boats around the world; however, Canting Ballast Twin Foil by CBTF Co. is the only movable ballast system that provides safe, reliable and non-intrusive performance for everyday sailing. The successful development of the CBTF concept is a milestone in the evolution of sailboat design.

M Ship Co.

Chuck Robinson and William Burns also founded M Ship Co. after beginning their endeavor with CBTF Technology.

M Ship Co. LLC, parent company to the Mangia Onda Company, is an award-winning maritime design firm formed to develop the innovative M-hull technology. The M-hull evolved from a challenge to help solve the serious problem of wave erosion to the ancient buildings of one of the most cherished cities in the world - Venice, Italy.

For more information on M Ship Co. please visit

Read some short biographies of our team.
Check further into the history of CBTF.


©2005 CTBF Co.