boat fastest

How can a sail boat achieve speeds faster than the velocity of the wind?

I know, or think I know, that ice boats can go 100 mph, which makes no sense to me: I would assume you could only go as fast as the speed of the wind. Is this only true if you’re sailing with the wind at your back?

When going at an angle to the wind, sails work with the combination of the true (natural) wind and the wind that your forward motion creates. This is called apparent wind, and is a greater force than just the true wind alone.

The reason that sailing to an angle is important is that sails are foils. Like an airplane wing, they create a vacuum that creates lift and sucks the boat forward (unless the wind is at your back, which is actually the slowest way to sail). The larger the sail area, the larger a vacuum you create, and the faster you can go.

(Also, if you’re curious, the reason you can’t sail directly into the wind is because it makes the sail flap like a flag. This destroys the curved shape in the sail, which is what makes it a foil and what creates the forward motion)

The World’s Fastest Boats – Nick Cook, Ken Muscatel £6.86

The World’s Fastest Boats – Nick Cook, Ken Muscatel £6.65

Worlds Fastest Boats (Built for Speed) Nick Cook £4.83

Thunderboats : The World Fastest Race Boats – Motorboat Racing – New DVD £12.95

Thunderboats: The World’s Fastest Race Boats 1994 VHS PAL Video Tape £6.99

Mercedes boat Worlds fastest Pleasure boat 193 MPH Record run!.AVI

boat fastest AMAZON PRODUCTS BELOW

Photographic Print of TURBINIA TORPEDO BOATU from Mary Evans £10.00 10×8 Print, TURBINIA TORPEDO BOATU. Torpedo-boat, fitted with the Parsons turbine engine, the fastest vessel afloat at this time, made a spectacular appearance at the Spithead Naval Review, June 1897 Date 1894. Chosen by Mary Evans. Printed on 254x203mm Fuji Crystal Archive paper for stable image permanence and brilliant colour reproduction with smooth tones, enhanced sharpness, and excellent defi…

Photo Mug of TURBINIA TORPEDO BOATU from Mary Evans £10.75 Photo Mug, TURBINIA TORPEDO BOATU. Torpedo-boat, fitted with the Parsons turbine engine, the fastest vessel afloat at this time, made a spectacular appearance at the Spithead Naval Review, June 1897 Date 1894. Chosen by Mary Evans. Polyester coated dishwasher safe ceramic mug. Weight 11oz, diameter 80mm, height 95mm. Image printed twice where practical and attached using dye sublimation process fo…

Framed Print of TURBINIA TORPEDO BOATU from Mary Evans £27.00 Framed 10×8 Print, Black Grain Bevel with White Mount. , TURBINIA TORPEDO BOATU. Torpedo-boat, fitted with the Parsons turbine engine, the fastest vessel afloat at this time, made a spectacular appearance at the Spithead Naval Review, June 1897 Date 1894. Chosen by Mary Evans. 10×8 (25x20cm) print in 12×10 frame with high quality custom mount. Wood Grain effect Synthetic Artcore moulding. Mountboa…

Children – All Aboard!: 24 Original All-Time Children’s Favourites [VINYL] £9.99 …

Thunderboats: The World’s Fastest Race Boats [VHS] £10.99 …

PLAYMOBIL – 4341 – Click & Go Speedboat …

Playmobil – - 4341 – Click & Go Speedboat 4341 (PLAYMOBIL) …

Humminbird 408120-1 Fishfinder 597ci HD DI Combo Timber, rocks, or even fish–watch it all take shape on crystal-clear, full-color 5″ displays. With screens that size, it’s easy to take advantage of versatile Down Imaging Sonar and exclusive Humminbird SwitchFire technology. We’re talking a beam sensitive enough to track a jig down to 70 feet and seperate fish as close as 2.5″ apart. Find your way using built-in UniMap or up the ante with option…

RC Stealth Speed Boat £29.99 The Stealth Ultra Fast Boat is almost 2.5 feet long yet it is capable of high speeds and is ideal for swimming pools, ponds and lakes. Fast 30 km/h top speed! With the radio controlled Stealth Ulta Fast Boat you can have up to 30 minutes of high speed fun. Click for Stealth Boat larger image With twin motors and a range of 30 metres, the Stealth Boat is ideally suited to larger pools, ponds or l…

Fast RC Boat Stealth Ultra £43.99 The Stealth Ultra Fast Boat is almost 2.5 feet long yet it is capable of high speeds and is ideal for swimming pools, ponds and lakes. Fast 30 km/h top speed! With the radio controlled Stealth Ulta Fast Boat you can have up to 30 minutes of high speed fun. Click for Stealth Boat larger image With twin motors and a range of 30 metres, the Stealth Boat is ideally suited to larger pools, ponds or l…