bigstang

damg i didnt know that. now if its on the other side it would be for left turns. what if i do both lol will it make it turn better both ways

Dan S

Tunnel hulls don't normally run with a turn fin.

the lapcat's came with a turn fin in the kit to compensate for a design flaw, without it the hull is more prone to spin outs.
so no, don't put one on both side, have fun with this one and later if you want to get yourself a newer and better tunnel just upgrade and you won't need a turn fin.

Dan.

Hydro Junkie

DON'T PUT ON A SECOND TURN FIN ON THE LEFT SIDE
This is a common question that always seems to come up. Putting a turn fin on the left side will only make the boat try to roll on you in the corners. The boat is probably set up with a fin on the inside of the right sponson, putting a majority of the weight on the outside. That is where you want the weight to be. Putting one on the inside of the left sponson will "trip" the boat in a right turn as now all the wieght would be on the inside. For slow turns, it really doesn't matter, for fast ones it does

Darn, Dan beat me to it

bigstang

lol its all good well ill get my pics up b4 i forget
and if i do want to get a new boat all i would need is say a new hull and can swap everything over or is their something else???

Hydro Junkie

You should be able to just swap everything, though you might want a new radio set if you plan on racing at all

bigstang

lol yeah i use a spektrum so im good their and i might swap throttle servo even thos the one in their is good but idk lol, want i want is a new box for it all but dont know how to take the glass out cuz i dont want to reck the hull

Dan S

HJ,
lolololol
except I didn't use big words.

Dan.

amrharrymac

My Feedback: (2)

All the Dumas tunnel hulls came with 1 turn fin on the right sponson too; strategically placed with the lower leading edge of the fin 1" in front of the CG. This was 7 1/2 to 8" from the motor mount to the rear of the fin on the Hot Shot 45 I built in the 80's.

Ron Olson

My Feedback: (1)

Hopefully it isn't one of the earlier Spektrum radios as they have a problem with the signal bouncing off the water. I saw 2 boats in one afternoon lose signal and this was just a group of friends getting together.

bigstang

WELL THEY only come with a short butt anntenna

fmimages

Hey that's the same boat I have with the exception of a different paint job and a driver in the cockpit. I still like to run it but as I have gotten into electric RC off-road trucks I don't run it much. I haven't found anybody in my area to run with. So after reading this thread. I'm going out this Sunday to try my boat again. I have the same problem with it bucking but when I get it on plane it goes. I also have an old radio. I have been putting in 80w marine gear lube to lubricate the prop shaft.  I'm having problems with keeping it running so I'll watch this thread to see how it goes.

R.J. West

I just saw the video of her running and yeah, you have a decent running boat there, but dude......Your gonna need ALOT more water than that to really appreciate the raw untamed horsepower thats justfighting to be released from that beast......But seriously you have a nice boat for the money, I'm jealous....

Ron Olson

My Feedback: (1)

Porpoising is nothing new with a lot of the older OB tunnel boats as I've seen Dumas' do it also. They'll do that until they get enough air in the tunnel to lift the hull.

fmimages

Here's a video of my LapCat II prowling around http://www.youtube.com/watch?v=jVRqumwRhos
I saw a video on YouTube where somebody reached 76.8Kmh with the same hull.

5bbasher

My Feedback: (3)

cool vid! i'll give it that's a cool way to set the camera. and the driver looked really focused too, not drunk at all! even when he was passed up lol

fmimages

Thanks, that was when it was running okay. Today I can't keep it running for more than a couple of laps. I think I better get my video cam back. it brings good luck.

Ron Olson

My Feedback: (1)

It sounded like it wasn't running at full song, she should have a few thousand more RPM left in her.

amax

LOL that vid was made in 07, if it's been sitting that long you might want to check the bearings, and flush all the fuel lines good to make sure theirs no gummed up oil in theme or the carb.

advanced builder

The first race of the season @ Elmira IMPBA district 1 this weekend CK out some action of last week http://www.youtube.com/user/neillagarry

fmimages

Well if you are referring to my video done in 1997 then here are the facts about that video. I had almost a pound of extra weight in the bottom of the hull to make that video. Since then my latest battery is a lipo not 4 Everyready AA. and transmitters have gotten lighter. I've put the same setup in myRC cars and they became slugs.

TCHedOff

FMIIMAGES,

Have you tried seraching the NAMBA and IMPBA websites for other boaters/clubs to get with? Seems to me I've seen several baoters who were in your neck of the woods.

advanced builder

He's in Joe Petro's neck of the woods ,they like to run on the Eire canal in the Mohawk area.

JWMods

well I thought the vid was very cool,, liked watching the bouys goin' by.
Thanks

racer45

     fmimages   district 8 has a race in eugene on may 29 and 30. should be able to meet sum racers ,also have a race on july 4 in centralia wa. if interested call or e-mail me at [email protected]  or call(360) 807-9016 for more information

fmimages

Well I hope to get that tunnel hull down to Eugene for the weekend.