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Seahorse incorporates your bike into a human-powered airboat
By Ben Coxworth December 1, 2014
Russell Randall pedals a Seahorse on Florida's Rainbow River
Back in the early 90s, MIT's Prof. Mark Drela created a motor-less hydrofoil known as the Decavitator. Using nothing but his own leg power to turn the craft's 10-foot (3-m) air propeller, he got it up to a speed of 18.5 knots (21 mph/34 km/h), breaking the human-powered water speed record in the process. Inspired by the Decavitator, aerospace inventor Russell Randall created his own pedal-propelled airboat called the Seahorse – and you can now buy one of your own.
According to Randall, the Seahorse is faster than a traditionally-paddled canoe or kayak, ...Buyers can pay a little extra for the addition of a more traditional water propeller which...Instead of paying for a permanently-attached pedaling platform, users just mount their own...
Randall first started producing Seahorses in 2001, but stopped to refine the design and perform more on-the-water testing. An unsuccessful Kickstarter campaign followed, but he is now resuming production on an improved incarnation.
Instead of paying for a permanently-attached pedaling platform, users just mount their own bicycle on the trampoline-style deck of the Seahorse. As they pedal, they turn the craft's air propeller, pushing the boat forward. If they wish, they can pay a little extra for the addition of a more traditional water propeller which has only two moving parts, and allows the craft to go upwind in breezier conditions ... although it also slightly increases the chances of getting fouled in aquatic weeds.
When they get to their destination, users then have the option of putting the wheels back on their bike, and using it to get around on the local roads.
Buyers can pay a little extra for the addition of a more traditional water propeller which...
According to Randall, the Seahorse is faster than a traditionally-paddled canoe or kayak, plus it can move backwards simply by reversing the propeller's pitch via a handlebar control. Users can also install an optional sail and use it as a regular catamaran, without the bike.
Two main versions of the Seahorse are available. There's a 14-foot (4.3-m), 25-lb (11.3-kg) polyethylene model that goes for US$$3,900 with the air propeller, or $4,400 with both air and water props. The longer 18-foot (5.5-m) version is made from fiberglass, and goes for $4,400 with an air prop or $4,900 with both. Potential buyers who don't want to spend quite that much can instead go for a water-prop-only setup, priced at $3,000 for the 14-foot boat and $3,500 for the 18-footer.
Both versions fold inward (the pontoons come together), allowing them to be carried through a standard doorway.
You can see one of the Seahorses in use, along with a funky waterproof quadcopter, in the video .
Source: Seahorse
http://www.seahorsefun.com/
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Eliminate interruptions during your swim with the FINIS Swimmer's Snorkel, an easy-to-use, front mounted snorkel. Using the Swimmer's Snorkel will improve your overall body position and technique. Training with the Freestyle Snorkel will also improve head position and body alignment in freestyle. It can also be used to teach a steady backstroke.
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Te presentamos este útil invento para mejorar tu técnica y tu respiración en el agua
TRIATLÓN , 01/12/2014
El nuevo Glide Snorkel es un tubo frontal para natación patentada por Finis. La firma especializada en accesorios para deportes acuáticos ofrece un novedoso y exclusivo diseño, compatible con cualquier tipo de gafas para la natación y que permite al nadador centrarse en la técnica, rotación y alineación del cuerpo. Gracias a su diseño, el Glide ofrece al atleta una gran naturalidad y relajación en la posición en el agua, lo que le permite respirar adecuadamente y centrarse en la técnica de la brazada. Según sus responsables, este nuevo accesorio “aumenta la tolerancia al CO2 y VO2 máx. Cuando se usa con el Cardio Cap (accesorio) incrementa la condición física y la capacidad pulmonar del nadador hasta en un 40%”. Su idóneo posicionamiento es beneficioso para cualquier nadador, independientemente de su nivel, ya que permite nadar a velocidades normales y lentas mientras se mantiene un movimiento completo. El Glide Snorkel es compatible con gorro y gafas de natación, está disponible en cuatro colores y tiene un precio recomendado de 24,90€.
Si deseas obtener más información aquí te dejamos su página web: Glide Snorkel
http://www.triatlonweb.es/swim/material-natacion/articulo/finis-glide-snorkel
GLIDE SNORKEL 21,88€
Introductory Center-Mount Technique & Training Snorkel
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http://www.finisinc.com/
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