Monday, October 25, 2010

North Rip 29 " Takes Shape "

The North Rip 29 Hull Plug and Design

Its an exciting time for North Rip Sportfishing as Pearson Precision Tooling has embarked on the robotic milling of the North Rip 29 Hull plug.

The 7-axis robotic mill is an in-house subdivision of the Pearson Marine Group. The 50' x 20' x 13' robotic milling envelope is one component of the "concept to completion" approach to building world class boats with their industry leadership and bold commitment to excellence.  
 
Starboard milled plug substrate
 
The North Rip 29 exemplifies the PMG approach with the launch of an offshore fishing machine that will be powered by twin outboard power mounted on a transom mounted bracket. 300HP optional power has the NR29 in the 60mph speed range based on its computerized velocity prediction models. If you have seen the North Rip 21 in person it is hard to look away from the complex blend of transitional tumblehome to an aggressive bow flare. The complexity lies in the sweeping sheer line which is not typical in progressive "Carolina" style sportfishermans. Most boats in this class have a "stepped" sheer line to more easily achieve the transition from the tumblehome to bow flare.

The aesthetics are not the only competitive advantage of the NR 29. Generous bow flare provides a dry ride and plenty of reserve buoyancy when in a large seaway. The 15 degree cylindrically raked transom helps to knock stern waves down and maintains a traditional full transom. The full transom has been lost with the trends toward the "Euro-Transom" which has gained popularity with many builders for predominantly its cookie cutter assembly advantages.
  
Beneath the waterline lies the 22 degree transom deadrise on a unique padded keel design  The lifting strake and chine geometry are one of the key components in the underbody design. The downward turning angles transition to focus the spray deflection away from the hull while reducing wetted surface which reduces frictional resistance. Slightly convex hull shape sections fwd add panel strength and deflect water away where its most needed.  The balance of the Hull including its weights,centers and most importantly the proper location of the LCG under different load conditions affect the boats performance most of all. The balance of onboard weights and machinery in the form of a weight study was an increment part of the hull design and overall layout.

The distinct styling of the North Rip 29 Hull is one of many features that differentiate it
in the Sportfishing Market.  Check back for more on the 29 interior layout, building technology and overall features coming soon.

Daryl Wilbur
North Rip Designer/Originator



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