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Naval Architecture of Planing Hulls

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LINDSAY LORD (1902-1991) was a New England naval architect with a doctor’s degree from Massachusetts Institute of Technology (MIT).

His expertise was in the field of planing hulls; small craft that skim the water. It was during the American prohibition of alcohol that Professor Lord gained attention when wealthy private clients (the Mafia) commissioned him to do high-speed load carrying boats to run rum from Cuba.

His designs were so fast that federal and state law enforcement could not catch them. Prohibition ended but Lord was not forgotten. WWII broke out and the US Navy needed fast load-carrying hulls that could accelerate, maneuver quickly, and maintain speed in various sea conditions.

Lord was commissioned as a naval officer and sent to Pearl Harbor, Hawaii. He was given unlimited resources to accomplish his mission of designing fast, seaworthy planing hulls for the Navy. Lord began with simple forms known to plane like existing Hawaiian surfboards.

Using a local boat shop in Hawaii he created a number of model plates to test various sizes and forms to determine the best aspect ratio for planing. Aspect ratio is related to the size and proportion of the hull’s length and width. The model plates were then towed and resistance was measured with a remarkable new engineering device called an electric strain gauge, which was invented by Bob Simmons’ brother Edward “Dewey” Simmons at Caltech in 1938.

After the war Lindsay Lord published a book of his work titled “The Naval Architecture of Planing Hulls” in 1946. The book was often seen in Bob Simmons possession, and he shared it with some of his surfing friends. Simmons was a mathematician and very experienced with the Bernoulli’s Law and other theories that pertain to aerodynamics and hydrodynamics. After 1948 Simmons appeared at surfing areas with radically new surfboards that he would proclaim as “hydrodynamic planing hulls”. He would exclaim, “surfboards are planing hulls!” and then finally, like a lightning bolt through the California marine air: “…and these are my latest machines!” The most efficient planing models tested in the Naval Architecture of Planing Hulls appear on pages 14 and 15. They are essentially neat, tidy, and carefully constructed versions of the paipo boards that Hawaiian surfers have been riding for generations. Simmons’ use of the information provided by these simple planing plates marks the moment when Western science merged with the mysteries of ancient Hawaiian wave sliding.

Recently, the powers of these simple planing totems have been revealed by a group of young surfers in San Diego. In the late summer of 2009 Encinitas surfer/shaper Ryan Burch used blanks of closed cell foam to make a series of simple, rectangular boards that are nearly identical to the planing “plates” tested by Lindsay Lord in Pearl Harbor in 1946. Burch and his cohorts Lucas Dirkse and Eric Snortum surf these boards with amazing creativity in a universal surf/skate style. By deconstructing board design down to its simplest form they have demonstrated how the planing boards (the alaia, the paipo, and the simmons planing hull) laid the foundation upon which the surf/skate style was built.

 

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Size Chart

Surfboard Leashes

You Break It We Replace It in First Year. 

Buy a leash closest to your board size—i.e. for 6'4 surfboard you need a 6' leash. 

All leashes are 7mm thick, competition leashes which are lighter/thinner 5.5 mm. 

Pioneer Day Boardbags - Fits One Surfboard

All boardbags have +2 inches. Thus a 6'6 board fit's perfectly in a 6'6 boardbag. All Pioneer bags have expandable fin gussets, so you can keep your fins on your board in the bag—or you can roll with glass-on fins.

Pioneer Sizes:

All bags have interior pockets (fins, leash and wax), bags fit industry standards. 

Our 8'6, 9'6 and 10' bags have fin slots and round noses. 

Pioneer bags also have an exterior pocket and zip all the way to the nose.

Travel Bags - Fits Two Surfboards

All Global boardbags have +2 inches, so if you buy a 6'2 boardbag, the real length is 6'4—thus you have a bit of room to play. 

Global Travel Bag Sizes:

Travel boardbags are 6'-8' inches deep to accommodate two boards—though you can travel with one in these bags without a problem—there are two interior pockets for leash, wax, and fins.

Surfboard Travel Bag Pockets Fin Wax Leash

Travel boardbags have two padded boards separators and two pockets for your gear. 

* Travel boardbags also have 13mm + 13mm of extra padding in the nose and tail.

Travel Bags with Wheels - Fits Two Surfboards

New in 2016 is the double travel bag with wheels. Sometimes you want a smaller bag with wheels, now you can have it. All Global boardbags have +2 inches, so if you buy a 6'2 boardbag, the real length is 6'4—thus you have a bit of room to play. 

Global Travel Bag Sizes:

Travel boardbags are 6'-8' inches deep to accommodate two boards—though you can travel with one in these bags without a problem—there are two interior pockets for leash, wax, and fins.

Wave Tribe Wheelie Surfboard Travel Bags

Travel boardbags have two padded boards separators and two pockets for your gear. 

* Travel boardbags also have 13mm + 13mm of extra padding in the nose and tail.

Boardbag Material & Hardware - All Bags

Side A of the bag is made from a strong density Rugged Eco Hemp exterior which is one tough fiber and naturally built to last with high impact padding protection with Rebound Foam Dynamics including open-to-nose technology.

Side B is the reflective (rental-car-roof-side) made from Reflective Energy Shield for "Cooler Surfboard Safeguard" protecting your surfboard from the sun's harmful rays made from an alloy-steel mesh weave.

All Sides are guarded by our Japanese Never-Rust-or-Break Nickel Platted Zippers streamline zipper trails and our trademarked Easy Flow Zip System.