Aluvan "Intruder" Test

The "Intruder" is a custom hull design boat, designed and prototyped by Aluvan Marine Design & Engineering. This is the test day of the "Intruder" on both calm and open waters. The boat is fitted out with a Mercury Optimax 115 2 stroke 3cyl, fitted with Smart Craft guages and a Vengance 16" stainless steel propeller. Steering is taken care of Teleflex hydraulic steering.

The design of the hull is truly unique for an aluminium boat. Providing maximum lift from very low speed, which developes a "wind tunnel" like effect either side of the keel. The lower chine's help keep the boat stable at both speed and through cornering, but do no way affect the response of the speed of the boat in relation to drag.

The hull will plane at a mere 5mph, and will cruise comfortably at 35MPH at 5000RPM with another 1000RPM on tap for over taking or quick bursts of speed up to 44mph.

Aluvan boast 35 years experience in marine design, and is responsible for some designs used by some of the leading boating names in Australia. This evidently shows in the "intruder" as weeks of careful sketches and 3D CAD drawing produced the first 3D model of the "intruder", this was then drawn to 2D patterns, cut and assembled. No scaled versions were produced or tested.

The footage you see is the first test this hull has undergone.

Whilst minor tuning will be performed, it is obvious this is a superior hull design for many applications, boasting both rough water and smooth water applications, with ample room for movement and fitout within the boat. The advantage of also using a smaller outboard, reduces purchase cost, weight issues and general running costs.

Category:

Science & Technology

Tags:

• fast boat
• alloy boat
• mercury
• outboard
• aluminium boat
• tri hull
• boat test
• prototype.

[AluvanMarine]

Hey Gibsonr32, the boat was sold to a gentleman living outside of Cairns, please let me know if you would like a water test of the boat and we will endeavor to arrange a time for you.

[AluvanMarine]

Initially we were to fit this boat with a 175 two stroke, but a customer requested the 115. The transom will take 200hp with no modification. We are also in talks at the moment with a dealer who would like to see a centre cab and bowrider version of the same hull.

[AluvanMarine]

It may not look like it's out of the water, but it is deceiving, if you look closely as the boat rides up the waves, you can actually see that the keel is not much deeper than the chines. At speed there is very little keel in the water, the sponsons ride just on top. The lift is caused by both the air caught under the sponsons, and the spay from the lift chines underneath. What we couldn't believe was how soft and stable it was even with six people fully loaded.

[AluvanMarine]

This design is actually a 3rd gen design from an original hull we had played around with, upon inspection it is similar to a Boston Whaler, but angles of the deadrise and reverse chines are different, to produce out of alloy wasn't an easy task but extra time spent in the 3D stages made it much easier. The same hull in glass would require alot more HP to get the same performance.

[xr8dpixel]

i like it,looks nice and stable... great job

[fbtasmania]

A nice looking set-up you have there...good job

fishingboatingtasmania

[dtp5150]

good job guys

[megariot]

Great looking boat.



[MrCes1966]

Interesting boat. Yes, the design most certainly is not original but a modified and possibly enhanced Whaler. Nice job on the boat.....this goes to show you that Boston Whaler had it right when they came up with this design in the early 1970's.

Good job guys......I'm impressed.

[phattagz]

I'm quite impressed with this design, I recently saw your ad in bush in beach magazine. Well done and good luck!!

[gibsonr31]

I ran into this boat about 20 mile of the coast up north coming in late and a bit rough I have a big brand 6m plate boat with a 175 I had to throttle back at about 20kph this bloody 6+m with a (115 mind you and 5or6 people not real sure) lifted out of the chop got on top and dissapeared and was loaded and gone when we arrived at ramp got the name of boat thought there may be a web site but name lead me here .Will let me know where these are made or can be contacted please? R Gibson