Clark Craft TU-9 Tunnel Hull Showcase Video HD

Video showcasing the TU-9 with action video, pictures and an interview showing all the features of the boat. Shows the work done from the day it left Londonderry High School June 2009 to the summer of 2011.

Category:

Autos & Vehicles

Tags:

• Tu9
• tunnel
• hull
• londonderry
• high
• school
• race
• boat
• wooden
• building
• hydrostream
• eliminator
• evinrude
• fastwin
• mercury
• aomci

[WhazzupPhil]

Have you tried removing the jackplate & raising the motor more ?

All the weight's is at the back & the jackplate is moving the CG back even further.

Since you have a LWP you could start by putting the gearcase bullet level with the sponsons

& work your way up. And a cleaver prop would better for top speed.

[MovieMakerKeith]

@WhazzupPhil The boat's transom is a 21 inch high transom made for a "long shaft" engine. We converted the 15 to a longshaft and ran it without the jackplate in the first Speed Testing video. Barely pumped water on plane as it was creating a whirlpool around intake. Engine needs to be jacked up about a half inch more but the jackplate works in 1 inch increments at the moment. The jackplate lets me run any SS 18" motor and adjust height accordingly. Is a cleaver prop essentially a surfacing prop?

[paradoxdesigns]

that thing looks like a blast. i want one!

[MovieMakerKeith]

@paradoxdesigns Just go to clark craft's website, order a kit and build your own! I had to make all the parts myself but with the kit you can build it in your garage with some woodworking handtools, drill etc. See "how to build a boat" video for build process

[ScottAtwater1]

Im a Omc fan but I think it needs Kiekhaefer Power

[MovieMakerKeith]

@ScottAtwater1 The Fastwin 15 is a good reliable motor for that boat, but i'll agree its a Mercury kind of boat

[WhazzupPhil]

@MovieMakerKeith OK.Yes a cleaver is a surfacing prop, I'm sure you can buy one from Ron Hill who specializes in small race props. How high is the bullet to the sponsons ? What's your current top speed & what are you aiming for ?

[Robbertdelange]

Looks good.

When you're done with fine tuning you're engine you want to use. Look for a jackplate and a cleaver prop.. You can get a lot more speed with it.

[PistonPumper]

Best TU9 video yet!!! I think you should post it on the AOMCI Inner Sanctum