HendricX

Are you talking about the Dutch-made Synthar .. made by John Vianen ?

Can't remember ever seen one as an inboard .

If you have one .. I would like some pictures > hendricx50 [at} hotmail [dot] com

Eddy de Vries

HendricX

Thanks Ed .... Ha ha .. must have had sand in my eyes at last F1 meeting.

Stuart Sale

We are fitting a new K30R into the newly modified Alpha F1 should be good

rfg racing

Hi Fella's gone a bit quite here!!!!
so i thought i might try and liven things up a little....
wanted to see if my rcmk twin would fit into my tunnel????
twin engine is fitted with an over drive gearbox ..three sets of ratio's to test!!
weekend of playing in shed and its ready for first run, but will have to wait a few weeks
before it can get wet..

rfg racing

sorry having trouble up loading photos

F1TUNNEL

Looking good Frank!! What rudder and strut are you using? I need to get some for mine at some point and put it together.
Cheers,
Dion.

trickeyf12

Hi guys.
I am geting back into  gas F1 boating.  I have a OB hull that i run some times,and have just brought two hulls to build as inboard. One for me and one for my 12 year old son.  I believe that the hulls are modified DPI huls. Both hulls have been run as inboard and then changed to OB.
Both hulls have had the transoms changed for the out boards.
I have removed these and am thinking do I make it a straight transom, or extend the transom past the rear of the sponsons?
what are peoples recomondations? and how far would I extend.
Thanks in advance.
Cheers Shane

trickeyf12

Here is what I am working on. Any suggestions?
Cheers.

Eddy de Vries

Herewith some pics of how I did it with my glassfiber copy.
As you can see I had to reinforce both the transom and the bulkhead (for outboard use) afterwards.

According to Jerry Dunlap, one of the designers, the DPI is not suitable for the gas power though, see post #4 [link=http://www.intlwaters.com/index.php?showtopic=51567&st=0&p=477879&#entry477879]here[/link]

quote - Having been somewhat involved with the DPI 1/4 Scale Tunnel(as well as other DPI designs), I'd recommend looking somewhere else "for another boat to hang a gas OB on." The boat traps way too much air. - unquote

Rgds, Eddy

penguinsurfboards

My Feedback: (1)

Here is what I am working on. Any suggestions?
Cheers.  Yes Ship me that Black Boat !!!!!!!!!!!!!!

trickeyf12

Thanks Eddy.
Thats the type of advise I am lookng for.
The red and blue hulls will be inboard so mabey easier to keep on the water?
Is there any benifit to extending the hull for inboard power? They were both inset to where you see I have cut them to.


Penguinsurfboards, Let we think about that .............. arh No LOL

Eddy de Vries

Main reason I did it was to have a more scale look.
Another advantage was that an offset transom brings the prop further back and thus makes the prop lift momentum bigger.
I also fiigured that shortening the boat afterwards would be easier than lengthening ?

Rgds, Eddy

trickeyf12

I also like the scale look.
Just thinking, if these hulls trap to much ai,r do they need lift further to the rear, or is that going to make the
problem worse?

Eddy de Vries

Once mine is near topend the dynamical CG seems to be OK.
Only problem is getting there, especially with a too fast accelerating propeller.
My experience (with an outboard) is that a 6717/3 seems to be big enough to prevent most porpoising and thus blowing over during acceleration.

trickeyf12

Thanks for the advise Eddy.

BenniRidds

hey there, im new to the hobby and currently runnig a thunderboat, but from a young teenager iv have been kicking arond with my mate who run the real f1 tunnels here in new zealand and we were searching for ur f1 tunnel popped u, just wantig 2 know what brand the hull is and where u can purchse one, as we are looking at setting an f1 tunnel up?

HendricX

The Dutch made Synthar .. will be extremely costly to send to NZ.

Better try to get a hold on to Mark Jordon .. forget if he's Aussy or NZ.

trickeyf12

Hi the black outboard hull was made by grh hobbys but the owner has pased on and the moulds seem to have been pased around a lot since
And I don't know who has them now sorry. I don't think it's the best hull anyway. The two I am working on now I got off trade me.
The ones Mark jorden builds look good, I believe they are around $750.00 aus. I was thinking about them myself untill these two came up
On tm.
Cheers

F1roddo

Mark Jordan hulls are very good and well built, and I am currently running one of them and another club member also has one too.

We are both very happy with them and mine is getting better and better each time out. I have also found that I keep coming back to a 6717/3 prop, as its the best so far.

Cheers
Chris

YPC

Hi Benni

We build a GAS F1 INBOARD - US $700 (including the shipping to Aus) - colour deck - white hull.

It has been successfully tested/raced with various drive units - from the standard inline rudder system - standard strut and rudder - our Camber out drive.

Supplied - bonded and trimmed - transom/sponson reinforcement fitted - flotation installed - mounting brackets supplied.

[youtube]http://www.youtube.com/watch?v=2kJhGrm8xcc&feature=plcp[/youtube]

We only still manufacture our ENIGMA CAMBER OUTBOARD DRIVE - ( No longer the Inboard drive)

Drop me a mail should you need more info

Regards
Dominic
Youngz Performance Craft
[email protected]

trickeyf12

Hi Dominic  I was going to contact you about your inboard drives,but see that you are not building them?
What is your recomdation for a strut and rudder set up?
Cheers Shane.

8thscale

My Feedback: (1)

Guys,

I'm doing a lot of reading, and sometimes a little skimming to try and find where to buy an inboard hull. Am I missing something, somewhere? I like Dominic's Hulls, and Latif's (Body Guard) Hulls, but I can't find anything else about purchasing one. I tried youngz performance craft, but I only see info on an outboard leg.

I would be interested in a used hull, that is built for an inboard, that may be in need of some re-finishing.

I'm located in California, so that may be an issue getting something from out of the U.S.

I actually thought about making a foam plug, but really don't want to invest that much time into it.

Any help would be appreciated.

Thanks,
Steve

F1TUNNEL

Hi Steve,
Try pm'ing both YPC or BODY GUARD, you will have much better luck that way. Dom should have hulls already made and chat to him about the inboard leg. Not sure what the shipping will be like price wise but they do ship over seas. The YPC site has not been updated in a long time and I always forget to ask Dom about this. I have read good reviews that Dom sent me about his inboard leg- there are a few in the States now being run. There are a couple of companies in the states making gas hulls, but they are for OB as far as I know. I too am setting up an inboard on the side-not my main focus at the moment but should be fun when done. The inboards throw up a bigger rooster tail than the outboards which does it for me. One day I will build or buy a rigger for the ultimate rooster tail!!
All the best with your build,
Regards,
Dion.

8thscale

My Feedback: (1)

Dion,

Thanks for the reply. I wonder if you or anyone else has had experience taking an OB tunnel and converting it to inboard. I see the Zipplits Illusion Tunnel is set up for OB. Besides re-working the inside of the hull (by adding stringers, etc..) I wonder if this is a viable endeavor, or should I just try and find a purpose built inboard.

Thanks again for the help.

-Steve