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#1 eric e

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Posted 09 December 2010 - 02:17 PM

merry maoAttached File  tnt34.jpg   59.04K   317 downloads

#2 TheFlash

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Posted 10 December 2010 - 12:17 AM

Is it just me - or did they somehow make that thing as ugly as they could?

#3 eric e

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Posted 10 December 2010 - 12:33 AM

seems it's Polish, i think it is the extra width that makes it look odd

8.5mtr, seems to be a telescoping farrier system

http://www.all-about...folding-system/

1st the poles made a trimaran called the eXploder

and now 1 called the tnt...

#4 motorcat

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Posted 18 December 2010 - 07:43 PM

seems it's Polish, i think it is the extra width that makes it look odd

8.5mtr, seems to be a telescoping farrier system

http://www.all-about...folding-system/

1st the poles made a trimaran called the eXploder

and now 1 called the tnt...



This is a novel way to approach folding developed by J.Kostanski in 2009 and subject to patent.

The idea was to combine two movements into firstly sliding and then pivot as the beams are coming in via

60 cm long sleeve. Float is supported by water due to small designed buoyancy thus making folding

possible. On the trailer the floats are tacked away under the main hull without any disassembly .

The sleeve is acting as solid long holder once bolted to the deck (similar bolting takes place on Farrier

system). Once the beam is locked in the sleeve the float is fixed via cantilever to the main hull .To reduce forces a

S/S wire struts will be provided for each float. Sliding will be easy thanks Teflon strips inside the sleeve. The folding in will be also quick and effortless

due to using the winch on the deck . Boat hook will be used to unfold while float is displaced by its own

initial buoyancy .

http://www.youtube.c...h?v=bMl7tvYy0Lg
http://www.youtube.c...feature=related



#5 eric e

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Posted 19 December 2010 - 12:09 AM




#6 Factory Maid

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Posted 19 December 2010 - 12:43 AM

I'm staring at this twin rudders on the vaka hull idea and going, Hmmmmmmm ?

#7 Lat 18

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Posted 19 December 2010 - 04:02 PM

Maybe it's done that way so he can mount an outboard motor in the middle. Why that would be important I don't know. MacGregor did a 26' mono like that: a huge OB on the transom and rudders either side. Makes a little more sense on a mono (heeling you know).

#8 gregj1

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Posted 19 December 2010 - 04:43 PM

I don't get the twin rudders either and the photos in the other thread make it look like the outboard wont tilt up, it has tiller and wheel steering and the telescoping mechanism shown in these videos wont work once the cabin top is installed?!?

#9 samc99us

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Posted 20 December 2010 - 05:16 AM

Rudders should be moved to the amas and the outboard removable. Is this a cruiser, cruiser-racer (what isn't?) or a pure racer? The latter I would say is out based on the current rendering.

#10 motorcat

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Posted 20 December 2010 - 11:14 AM

Rudders should be moved to the amas and the outboard removable. Is this a cruiser, cruiser-racer (what isn't?) or a pure racer? The latter I would say is out based on the current rendering.

This paricular unit is cruiser/racer (to beat DF 35 or F 36 or F 33 X) but with beam of 28 ft and 50 ft mast we can easily have racer /crusier
Tilting no problem

See the pictures with twin ruders and tillted 25 hp O/B

The advantages of this set up is as follows:



  • More ruder area less leeway


  • When heeled TnT still has better grip than single rudder


  • O/B is centered =better flow =speed 40-50 hp should give us 10-12 knots

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#11 Oxygen Mask

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Posted 20 December 2010 - 11:59 PM

Overall it really doesn't look too bad.
But I do not like the twin rudder/huge outboard idea.

With the sliding/folding system, what's the height on a trailer? Looks like it would be very high.

I think you'd be better recieved if you left out any mention of that stupid quadracat in your adverts.

#12 motorcat

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Posted 21 December 2010 - 07:05 AM

Overall it really doesn't look too bad.
But I do not like the twin rudder/huge outboard idea.

With the sliding/folding system, what's the height on a trailer? Looks like it would be very high.

I think you'd be better recieved if you left out any mention of that stupid quadracat in your adverts.


Outboard 15-50 hp.50 is huge but may give 12 knots which is double of "normal speeds"Twin rudder when TNT is heeled to 10 deg and more is a blessing.Many other tris loose grip at that angle.Also more rudder area less leeway=more speed.

#13 Genealex

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Posted 21 December 2010 - 09:34 AM


With the sliding/folding system, what's the height on a trailer? Looks like it would be very high.

I think you'd be better recieved if you left out any mention of that stupid quadracat in your adverts.


The height of TNT 34 on trailer with beams up is 14 feet.


Quad 28 was 1650 kg but wave resistance of narrow hulls (3) was less
than two hulls of tris .This is why Quad 28 came second in 3 hrs on a beam reach regatta in Vancouver in 1997 ahead of bigger tris ,cats and mono .


Maximum allowed height of a vehicle and its freight in the European Union is 4 m, you will need a special permit to transport the boat in this configuration. You won't pass under a lot of viaducts, so special planning of your itinerary is required as well

#14 BeachbumII

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Posted 21 December 2010 - 12:10 PM

Folding system slides well on workshop floor with wheels supporting the hull. How does it slide when the waves and the buyoancy on the hull in water disaligns the system a bit? I predict very short working life for the sleeves before the boat starts to twist due to the gap on sleeves and beams..

#15 motorcat

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Posted 21 December 2010 - 04:46 PM



With the sliding/folding system, what's the height on a trailer? Looks like it would be very high.

I think you'd be better recieved if you left out any mention of that stupid quadracat in your adverts.


The height of TNT 34 on trailer with beams up is 14 feet.


Quad 28 was 1650 kg but wave resistance of narrow hulls (3) was less
than two hulls of tris .This is why Quad 28 came second in 3 hrs on a beam reach regatta in Vancouver in 1997 ahead of bigger tris ,cats and mono .


Maximum allowed height of a vehicle and its freight in the European Union is 4 m, you will need a special permit to transport the boat in this configuration. You won't pass under a lot of viaducts, so special planning of your itinerary is required as well


Except France , UK , Sweden , Norway and most of US States ,where the heigth limit is 4,5 m . Anyway regarding to trailers at 2,9 m wide, towing will just require a permit , but this is usually a simple process. The problems started from 3,05 m beam , which beyond let to organize special transport , We have a hope as well that , when we proceed to the construction of the trailer, we will be closer to 4 than 4.5 m

#16 motorcat

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Posted 22 December 2010 - 12:37 PM

Folding system slides well on workshop floor with wheels supporting the hull. How does it slide when the waves and the buyoancy on the hull in water disaligns the system a bit? I predict very short working life for the sleeves before the boat starts to twist due to the gap on sleeves and beams..


do not worry please we have special reinforcments with 3 mm ss 5 strips on the beam and teflon inside the sleeve



#17 SWS

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Posted 31 December 2010 - 04:44 PM

I would think that trimarans loose steering because of the growing trend towards large capacity outer hulls. A deep rudder is really what is required, not two.

#18 motorcat

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Posted 01 January 2011 - 06:14 PM

I would think that trimarans loose steering because of the growing trend towards large capacity outer hulls. A deep rudder is really what is required, not two.


In an ideal world two rudders but on floats not a main hull

#19 Solarbri

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Posted 01 January 2011 - 08:13 PM


I would think that trimarans loose steering because of the growing trend towards large capacity outer hulls. A deep rudder is really what is required, not two.


In an ideal world two rudders but on floats not a main hull


So why not on the TNT 34?Posted Image

#20 motorcat

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Posted 02 January 2011 - 07:12 AM



I would think that trimarans loose steering because of the growing trend towards large capacity outer hulls. A deep rudder is really what is required, not two.


In an ideal world two rudders but on floats not a main hull


So why not on the TNT 34?Posted Image


To complicated for folding tri

#21 motorcat

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Posted 28 February 2011 - 11:41 AM

enjoy

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#22 motorcat

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Posted 11 March 2011 - 07:33 AM

TNT 34 buiding progress :
230 – top view

766 – double rudder with space for O/B between them

804 - unfolded position to total 28 ft beam (8.5 m)

814 –marina beam of 13 ft(3.9 m)

934 – interior mock up , it will be spacious


976 - deck fits perfectly

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#23 motorcat

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Posted 26 April 2011 - 03:05 PM

Final TNT 34 sails :
  • Main 57.5 m2
  • Jib 27.5 m2
  • Spi 125 m2
  • Genoa 80 m2
see You on water soon :rolleyes:



#24 eric e

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Posted 26 April 2011 - 09:04 PM

looking good

#25 Southwind25

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Posted 27 April 2011 - 06:12 PM

I have been recieving updates on this fine craft. looks awesome..
I couldnt imagine who would be able to afford one.

#26 motorcat

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Posted 02 May 2011 - 07:29 PM

Attached File  Final TNT 34 sails plan.jpg   312.27K   84 downloads

Final TNT 34 sails :

  • Main 57.5 m2
  • Jib 27.5 m2
  • Spi 125 m2
  • Genoa 80 m2
see You on water soon :rolleyes:




#27 motorcat

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Posted 15 July 2011 - 09:58 AM

Sorry for keeping You silent but we must to slow down the project regarding to building the next power cats from our Motorcat line
http://www.facebook....105649256196055
Now we back to finish TNT 34 and hope to be ready for test in the second part of Septemebr
Folow the below link included the movie taken yesterday in the shipyard and see attached pictures
http://www.facebook.....55213

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#28 motorcat

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Posted 01 September 2011 - 07:57 AM

ready to paint and steering

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#29 Matty

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Posted 04 September 2011 - 08:27 AM

ready to paint and steering


why have the 2 rudders that close and parallel? interesting concept.

#30 motorcat

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Posted 04 September 2011 - 10:36 AM


ready to paint and steering


why have the 2 rudders that close and parallel? interesting concept.



At least there is a choice for one or two as required to reduce drag
Shape \ DRAG for taller and thicker single rudder is about the same but now there is lesser loss of steering in hard heel
Plus loss of single you have nothing to steer
Plus o\b can fit between
Plus.....

#31 Matty

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Posted 05 September 2011 - 12:40 AM



ready to paint and steering


why have the 2 rudders that close and parallel? interesting concept.



At least there is a choice for one or two as required to reduce drag
Shape \ DRAG for taller and thicker single rudder is about the same but now there is lesser loss of steering in hard heel
Plus loss of single you have nothing to steer
Plus o\b can fit between
Plus.....


But why parallel and why not on the outer hulls?

on Timberwolf In NZ we have gone from single rudder in the middle to one on each outer hull at 5 degrease.

I’m not being negative, just very curious.

thanks

#32 ColinG

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Posted 05 September 2011 - 01:52 AM


ready to paint and steering


why have the 2 rudders that close and parallel? interesting concept.


allows you to centrally mount the outboard?
Not worth it for that.

#33 motorcat

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Posted 05 September 2011 - 06:15 AM




ready to paint and steering


why have the 2 rudders that close and parallel? interesting concept.



At least there is a choice for one or two as required to reduce drag
Shape \ DRAG for taller and thicker single rudder is about the same but now there is lesser loss of steering in hard heel
Plus loss of single you have nothing to steer
Plus o\b can fit between
Plus.....


But why parallel and why not on the outer hulls?

on Timberwolf In NZ we have gone from single rudder in the middle to one on each outer hull at 5 degrease.

I'm not being negative, just very curious.

thanks


Time will tell this system benefits

For folding tri float rudders ?

#34 SeaGul

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Posted 15 September 2011 - 07:08 AM

See that the displacement is 1.5T - but I am shure the finished boat will be closer to 2.5T - as I have a very light buildt 35 feet trimaran myself that weights in at 1,3T
I can be pretty shure of this. See also you predict 10-12 knot with a 40-50hp engine - even the weight I thing it wil make that with ease.

The concept of having such a big engine in the rear will maybe cause some problems . It will be a fast sailer - and the big engine in the back is "against the concept".

I think a more innovative engine concept should be designed for such a boat; the engine (heavy) mounted in the centre og the hull - as a power plant for an light
electrical engine at the back - or a full electric motor with the batteris in the center - low down.

#35 motorcat

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Posted 16 September 2011 - 07:08 AM

See that the displacement is 1.5T - but I am shure the finished boat will be closer to 2.5T - as I have a very light buildt 35 feet trimaran myself that weights in at 1,3T
I can be pretty shure of this. See also you predict 10-12 knot with a 40-50hp engine - even the weight I thing it wil make that with ease.

The concept of having such a big engine in the rear will maybe cause some problems . It will be a fast sailer - and the big engine in the back is "against the concept".

I think a more innovative engine concept should be designed for such a boat; the engine (heavy) mounted in the centre og the hull - as a power plant for an light
electrical engine at the back - or a full electric motor with the batteris in the center - low down.



We going with 20 or 25 hp

#36 eric e

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Posted 20 September 2011 - 11:05 AM

looking forward to the pics, sorry can't make the splash

do we have any anachisti? in poland?

#37 motorcat

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Posted 29 September 2011 - 03:32 PM

First trail for a public 22 October on lake Bukowka , near the shipyard - turistic farm http://www.paprotki.pl/_eng/index.htm . If anybody interesting to visit us please write a msg to office@motorcat.com to 10 October at the latest . Welcome on board soon

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#38 TheFlash

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Posted 29 September 2011 - 04:30 PM

I'm sorry - but the wheel, double rudders (why, oh why?) and the centerline engine in that rendering makes the boat look like a Mac 26.


20 HP should be enough - I've got a 20 on my Contour 34 - should be about the same displacement - and we hit max efficiency at about 3/4 throttle. It's nice having a little extra to punch in chop.

I hope you have good hatch boards - you will get pooped with that low transom on occasion, and you will take significant water into the cockpit. We're planning on rigging a canvas cover for our transom.

#39 motorcat

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Posted 30 September 2011 - 07:24 AM

I'm sorry - but the wheel, double rudders (why, oh why?) and the centerline engine in that rendering makes the boat look like a Mac 26.


20 HP should be enough - I've got a 20 on my Contour 34 - should be about the same displacement - and we hit max efficiency at about 3/4 throttle. It's nice having a little extra to punch in chop.

I hope you have good hatch boards - you will get pooped with that low transom on occasion, and you will take significant water into the cockpit. We're planning on rigging a canvas cover for our transom.


Station with Wheel is designed to drive on power only

Tiller is the way to go and this what we promote


We installed 30 hp on this model but 10 15 20 or 25 are up to the owner


Double via slider makes sense under sail double via kick up not .

Countour will be havier vs TNT with much less beam and sail area . Not even close to TNT




#40 SeaGul

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Posted 30 September 2011 - 08:52 AM

I wonder about how the forces from the front beams and the mast is distributed ?

I see from the building pics that its no big bulkhead in that area - and the area is rather big with the two beams assymetrical and the mast behind the beams.
With the daggerboard on the floats it vil also make bigger forcer to the beams.

Are the daggerboard assymetrical - which could be an option when there are mounted on the amas?

Is this a ocean going design or more a sheltered water design?

#41 motorcat

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Posted 30 September 2011 - 02:44 PM

I wonder about how the forces from the front beams and the mast is distributed ?

I see from the building pics that its no big bulkhead in that area - and the area is rather big with the two beams assymetrical and the mast behind the beams.
With the daggerboard on the floats it vil also make bigger forcer to the beams.

Are the daggerboard assymetrical - which could be an option when there are mounted on the amas?

Is this a ocean going design or more a sheltered water design?


Forces are huge but controlled by two bulkheads. TNT will have CE ,class B.
There is no hydrofoils yet (50/50) and the main dagarboard has huge reinforcements
Our designers have engineering background an we take great care to calculate and distribute theforces trough out the TNT

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#42 zerothehero

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Posted 02 October 2011 - 06:18 PM

I am just guessing here but I think the idea is similar to the Mac 26. Two rudders allow for an oversized outboard to be placed between them. The idea with the 26 was to make a boat that could be sailed or motored, and motored at planning speeds. With the 26 the idea was a boat for the everyday man, something that does everything. However whenever you compromise.... But with a tri you aren't going to get in up on a plane under power, or I would hope not, so why the need for the huge outboard? I would think a tri would be faster under sail than power in almost all situations so why not save the drag and the weight associated with this system.

#43 motorcat

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Posted 03 October 2011 - 05:57 PM

I am just guessing here but I think the idea is similar to the Mac 26. Two rudders allow for an oversized outboard to be placed between them. The idea with the 26 was to make a boat that could be sailed or motored, and motored at planning speeds. With the 26 the idea was a boat for the everyday man, something that does everything. However whenever you compromise.... But with a tri you aren't going to get in up on a plane under power, or I would hope not, so why the need for the huge outboard? I would think a tri would be faster under sail than power in almost all situations so why not save the drag and the weight associated with this system.



Why all twin rudders boats seems to be Macgregors and why multihulls idea is compared to mono ?
As a builder of true power cats ( www.motorcat.com ) , we believe that 10 knots under power is needed and safe.

Twin rudder under sail give us so many options

#44 zerothehero

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Posted 03 October 2011 - 07:34 PM

the only reason I can see for the twin rudders is to give room for the outboard. If it was a control issue they wouldn't be parallel and 3 feet apart. They would be set at the best angle to be vertical while healed. And generally on a tri you wouldn't do that anyway. If the design allows for lifting the center hull then the rudders are out on the amas. If the main hull stays wet then one, centered. 10 knts under power seems reasonable, just saying it looks like that is your reason for 2 rudders, a big engine.

#45 motorcat

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Posted 03 October 2011 - 08:40 PM

the only reason I can see for the twin rudders is to give room for the outboard. If it was a control issue they wouldn't be parallel and 3 feet apart. They would be set at the best angle to be vertical while healed. And generally on a tri you wouldn't do that anyway. If the design allows for lifting the center hull then the rudders are out on the amas. If the main hull stays wet then one, centered. 10 knts under power seems reasonable, just saying it looks like that is your reason for 2 rudders, a big engine.



Plus less leeway when under 10 knots under sails

More control of needed blade area

When heeled better grip

Two is better than one if one fails

List is long ..,

#46 zerothehero

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Posted 04 October 2011 - 08:04 PM

it's your boat, build as you want. But looking at the size of the rudders I think you are way overdoing it on surface area.

#47 motorcat

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Posted 05 October 2011 - 06:35 AM

it's your boat, build as you want. But looking at the size of the rudders I think you are way overdoing it on surface area.



Win Win with two rudders

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#48 motorcat

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Posted 05 October 2011 - 04:25 PM

the last renedering before launching TNT 34

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#49 zerothehero

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Posted 07 October 2011 - 02:16 AM

what is the wheel for on the back of the house?

#50 motorcat

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Posted 07 October 2011 - 05:05 AM

what is the wheel for on the back of the house?



Station with Wheel is designed to drive on power

#51 zerothehero

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Posted 07 October 2011 - 05:08 PM

I rest my case about the rudders then!

#52 motorcat

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Posted 22 October 2011 - 09:20 AM

today first time on thw water , the weather is sunny anyway cold

see our facebook web site http://www.facebook.com/#!/event.php?eid=201790606553753 for the first shots

#53 motorcat

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Posted 24 October 2011 - 04:57 PM

Last weekend test failed . Unfortunately in saturday when the weather was ok , the shipyard must to end fitting of the mast, what was a result of missing mast feet during the delivery .We must wait extra few days and couldn`t be ready for Saturday. The Sunday started at the lake , with heavy fog after the night with a minus grad Celsjus and about the noon we must to cancel event finally :o(. See the pictures taken last week in the shipayrd. We have a hope to be on the water within next two weeks , if the weather let . Keep You posted

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#54 motorcat

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Posted 24 October 2011 - 05:00 PM

attempt to weight - 1750 kg - good job isn`t it ? http://www.youtube.com/watch?v=dDdVc3S8WxU

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#55 Fat Point Jack

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Posted 24 October 2011 - 07:06 PM

A VW SUV Pickup?

What's it called?

#56 motorcat

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Posted 24 October 2011 - 07:18 PM

A VW SUV Pickup?

What's it called?



Amarok http://en.wikipedia....lkswagen_Amarok

#57 eric e

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Posted 24 October 2011 - 10:24 PM

very nice

i wondered why the pics weren't appearing on your facebook page

not much time left in your sailing season

hopefully you'll get some valuable sailing data before the ice comes

and have it all ready for 2012

#58 motorcat

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Posted 26 October 2011 - 09:14 AM

more pictures taken today at the shipyard

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#59 eric e

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Posted 26 October 2011 - 11:16 AM

those are monster beams

can they be unbolted from the floats, will they fit into a 40' container?

those beams seem to be much more angled than in the drawings

is this because they are just hanging

do they need water under them supporting them to be flat like the drawings?

#60 TheFlash

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Posted 27 October 2011 - 09:43 PM

those are monster beams

can they be unbolted from the floats, will they fit into a 40' container?

those beams seem to be much more angled than in the drawings

is this because they are just hanging

do they need water under them supporting them to be flat like the drawings?


If anything like my boat - they need the rig tension to lift them.

#61 eric e

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Posted 28 October 2011 - 05:23 AM

that would make sense

my weta needs that too

#62 motorcat

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Posted 28 October 2011 - 07:37 AM

those are monster beams

can they be unbolted from the floats, will they fit into a 40' container?

those beams seem to be much more angled than in the drawings

is this because they are just hanging

do they need water under them supporting them to be flat like the drawings?


Yes we can fit TNT into container . The 15 m mast is folding into 2 pieces
Beams were not fixed by bolts on the floor at the time of pictures.




#63 motorcat

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Posted 28 October 2011 - 07:54 AM

Interior shots

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#64 eric e

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Posted 28 October 2011 - 08:39 AM

looking good

#65 motorcat

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Posted 19 November 2011 - 02:01 PM

First shots from yesterday trial . More to come

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#66 msouth

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Posted 19 November 2011 - 02:47 PM

Price ?

#67 motorcat

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Posted 20 November 2011 - 08:25 AM

Price ?



For the price requests please write to office@motorcat.com

We did 9 kts with a wind about 4-5 kts and 7 kts on power with 3500 rpm ( max 6000 rpm )

We need now a really wind and warmest weather . Keep You posted

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#68 DaveK

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Posted 20 November 2011 - 03:21 PM

Video not so good. :'(

#69 joey g

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Posted 20 November 2011 - 04:44 PM

How tall are those beams when folded?

Joe

#70 motorcat

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Posted 20 November 2011 - 08:05 PM

Video not so good. :'(


yes , but we have no time to make it as proof and the weather do not help too. According to short day we have 3 hours on the water only . Change video to another one , a litle bit longest

#71 motorcat

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Posted 20 November 2011 - 08:08 PM

How tall are those beams when folded?

Joe


a litle bit more than 4 m , seating on the trailer

#72 joey g

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Posted 20 November 2011 - 09:11 PM

That's a little tall for trailering in most places ain't it?

Joe

#73 eric e

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Posted 20 November 2011 - 09:40 PM

what's what's the limit where you are Joey?

looks to have nets aft of the rear beam like the similarly long tailed f32

woud be very interesting to see them sailing together someday...

#74 motorcat

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Posted 20 November 2011 - 09:53 PM

That's a little tall for trailering in most places ain't it?

Joe




I think no . US - max trailering height is 4,30 ( 14 feet ) In Europe max trailering height is 4-4,1 m and depends to country . Height of the TNT itself with beam up is 3,73 , ( 12,2 feet )

#75 joey g

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Posted 21 November 2011 - 03:23 AM


That's a little tall for trailering in most places ain't it?

Joe




I think no . US - max trailering height is 4,30 ( 14 feet ) In Europe max trailering height is 4-4,1 m and depends to country . Height of the TNT itself with beam up is 3,73 , ( 12,2 feet )


While the max height in the US is 14 feet I can tell you that i have seen many bridges shorter than that. I think that the beams look absolutely huge, but when you put them in comparison to an F/C boat they are about the same.

Joe

#76 motorcat

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Posted 21 November 2011 - 10:27 AM



That's a little tall for trailering in most places ain't it?

Joe




I think no . US - max trailering height is 4,30 ( 14 feet ) In Europe max trailering height is 4-4,1 m and depends to country . Height of the TNT itself with beam up is 3,73 , ( 12,2 feet )


While the max height in the US is 14 feet I can tell you that i have seen many bridges shorter than that. I think that the beams look absolutely huge, but when you put them in comparison to an F/C boat they are about the same.

Joe


I do not talk that are any bridges under the 4,3 m height . I wrote that trailering under the 4,3 m height is not prohibited on the US roads and do not required special permition . As always before trailering TNT will be required to find a road without height limits

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#77 motorcat

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Posted 23 November 2011 - 05:23 PM

rising moon above TNT 34

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#78 richie

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Posted 24 November 2011 - 05:04 AM

rising moon above TNT 34


...fajna fotka....i lodka tez...:)

#79 Tucky

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Posted 24 November 2011 - 03:00 PM

While the max height in the US is 14 feet I can tell you that i have seen many bridges shorter than that. I think that the beams look absolutely huge, but when you put them in comparison to an F/C boat they are about the same.

Joe


The original F-27 is close to twelve feet, my F-36 is around 11' 6" and the third generation boats are lower yet.




#80 vmg

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Posted 24 November 2011 - 05:12 PM

My F32 stands at 11'7"

I thought that the F36 was demountable, not folding?

#81 Tucky

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Posted 24 November 2011 - 11:33 PM

My F32 stands at 11'7"

I thought that the F36 was demountable, not folding?



Sorry, I meant my F-31- bad typo.



#82 motorcat

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Posted 05 December 2011 - 09:42 AM

TNT 34 -The New Trimaran – First Trial



The first sail trial of TNT 34 has happened on November 18 ,2011 on the small lake Bukowka(http://www.windguru.cz/int/index.php?sc=65606) surrounded by hills where wind speed that day was 5-9 knots. There was 5 people on board and not all sails and rigging were in place to attain higher speeds.

After launching the yacht by crane (no ramp available), the engine was started to stay against the wind and to hoist the sails .The daggerboard was lowered to 70 % of its length due to unknown and potentially shallow conditions .The following results were obtained :



  • TWS 7-9 knots, wind angle 70 deg ,boat speed 7,8 knots (TWS –True Wind Speed)
  • TWS 5-6 knots, wind angle 70 deg ,boat speed 6,5 knots
First tacks were quick and TNT easily crossed the wind line . Loss of boat speed was not more than 50 % (20 tacks were made) and yacht did not “hesitate “ or “stopped” crossing smoothly the wind line .

After up wind trial TNT started to tack with the wind and following results were obtained:



  • TWS 5-6 ,wind angle 120 deg ,boat speed 8-9 knots
  • TWS 7-9 ,wind angle 120 deg ,boat speed 9-10 knots


Jibing was easy too with only 20 % loss of boat speed .

Then series of tacks and jibes were performed on a beam reach. In both cases TNT 34 crossed easily the wind line and tack radius did not exceed 1.5 hull length .Also TNT performed flawlessly twice man overboard manoeuvre (mandatory for some EU skippers during exam ) .



Report by Piotr Adamowicz ,Yacht Captain

Piotr has sailed 58000 NM of which 38000 NM are in racing .14 times Polish Yacht Championships in different categories and yacht classes .Piotr has also participated 9 times in ¼ Ton World Cup (IOR) with being 5th, in 1995 and 6th in 1995.









#83 Wess

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Posted 05 December 2011 - 11:15 PM

TWS 5-6 ,wind angle 120 deg ,boat speed 8-9 knots


Really? You are claiming boat speed @ 1.5X wind speed, off the wind with 80 degree gybing angles.

#84 THOR

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Posted 06 December 2011 - 04:21 PM

was the motor running ?

nice boat ... the last thing we need is overzealous incorrect marketing "facts"

thor

#85 vmg

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Posted 06 December 2011 - 05:30 PM



TWS 5-6 ,wind angle 120 deg ,boat speed 8-9 knots


Really? You are claiming boat speed @ 1.5X wind speed, off the wind with 80 degree gybing angles.


If you are sailing at an angle of 120 deg to true wind, thats a broad reach and your gybe angle would be 120 deg

#86 Wess

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Posted 06 December 2011 - 07:45 PM




TWS 5-6 ,wind angle 120 deg ,boat speed 8-9 knots


Really? You are claiming boat speed @ 1.5X wind speed, off the wind with 80 degree gybing angles.


If you are sailing at an angle of 120 deg to true wind, thats a broad reach and your gybe angle would be 120 deg

Wow, that hang-over lasted a while.

Pay no attention to my superior math skills... yes they are 60 off DDW and gybing through 120 deg as you said. Ouch.

Still doubt they were getting 1.5X (quickly double checking that...)

#87 motorcat

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Posted 07 December 2011 - 08:12 AM

[/quote]
Still doubt they were getting 1.5X (quickly double checking that...)
[/quote]

We believe that next trials will confirm it and TNT 34 will be one of the fastest tri , but still fammily friendly . It is a simple theory of sailing :rolleyes:, that let sail fast than wind http://en.wikipedia....r_than_the_wind. TNT 34 in light wind has up to 160 m2 on 2200 kg boat and has an extreme sa/d ratio.
Bruce number is between 1,841,-1,89 against 1,693 of F33 for example. Keep You posted

#88 unShirley

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Posted 07 December 2011 - 07:59 PM

It also has twin rudders and a big outboard

#89 msouth

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Posted 07 December 2011 - 11:44 PM

It also has twin rudders and a big outboard



A 2 strokker outboard though - same weight as a 4 strokker smallish that is... twynn rudds - yeah' but they are not soo darn deep.-.

#90 THOR

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Posted 08 December 2011 - 08:35 PM

It also has twin rudders and a big outboard

like "that other" boat

#91 motorcat

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Posted 13 December 2011 - 09:35 AM

TNT 34 outboard running http://www.youtube.c...2g&feature=plcp

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#92 motorcat

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Posted 15 December 2011 - 08:50 AM


Two new videos at Utube :
* Folding TNT 34 - outboard run - 8,9 Kts on 30 HP power - http://www.youtube.com/watch?v=jQjXB1Ta_V4&list=UU-91P767gj-Z5X5mx8x9P2g&index=2&feature=plcp
* TNT 34 - folding on the water - starboard view - http://www.youtube.c...plcp&playnext=1



#93 Y-Bar

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Posted 15 December 2011 - 08:54 PM

How about a video of it sailing in 25 knts of breeze so we get an idea of how she goes.
Nobody really cares how fast it is with a 30hp motor. It is a sailing trimaran after all.

#94 motorcat

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Posted 15 December 2011 - 09:14 PM

How about a video of it sailing in 25 knts of breeze so we get an idea of how she goes.
Nobody really cares how fast it is with a 30hp motor. It is a sailing trimaran after all.




According to winter weather here in Poland , we forward final test in "really" sailor conditions to the spring time near Gdansk ( Batic Sea ) . As TNT is new boat and protype vessel , we must start at the lake area first to check design in light waterways . Now the boat is ready to move in sea direction
Yes it is sail trimaran , but as it is fammily friendly design too , we must to take care about safety as well . I think that it is important to know , how fast is possible to back in case to unexpected events

#95 THOR

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Posted 15 December 2011 - 10:13 PM

If you want to go back ,,,, in a hurry.... and you take the sails down and use the motor,, you are indeed a fool .... sorry my friend ...
our boats sail very safe with 3 times the speed than the motor can push them in the best of conditions...

If yours doesnt, than something is seriously wrong

your last sentence sounds exaclty like the fuzzy warm secure feeling non sailors get when they sign the dotted line for a McGregor.

I think you have a beautiful boat there, with lots of potential, I like a lot of details, and some not so much, but your comments are really turning me off ...

thor

#96 motorcat

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Posted 16 December 2011 - 06:45 AM

If you want to go back ,,,, in a hurry.... and you take the sails down and use the motor,, you are indeed a fool .... sorry my friend ...
our boats sail very safe with 3 times the speed than the motor can push them in the best of conditions...

If yours doesnt, than something is seriously wrong

your last sentence sounds exaclty like the fuzzy warm secure feeling non sailors get when they sign the dotted line for a McGregor.

I think you have a beautiful boat there, with lots of potential, I like a lot of details, and some not so much, but your comments are really turning me off ...

thor


in case of unexpected events , means for me that is not possible to use sails ( sometimes shit happens ). Building our botas we are thinking always about safety. Maybe it is a foolish idea , but I believe that our boats are more friendly as a result
Kris

#97 Y-Bar

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Posted 16 December 2011 - 10:14 AM

I understand your desire to start in light conditions and work up to the stronger conditions.
I realise that it is not designed as a full race boat but a good boat works in well in all conditions.
Look forward to some sailing vids in the future.

#98 motorcat

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Posted 16 December 2011 - 10:27 AM

I understand your desire to start in light conditions and work up to the stronger conditions.
I realise that it is not designed as a full race boat but a good boat works in well in all conditions.
Look forward to some sailing vids in the future.


Yes , our goal is design TNT 34 to be sailed by experienced sailor yet , who would like to have a competition tri against others , but still friendly for a family.

#99 motorcat

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Posted 18 December 2011 - 04:12 PM

TNT 34 final interior and exterior pictures

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#100 richie

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Posted 18 December 2011 - 04:57 PM

I understand your desire to start in light conditions and work up to the stronger conditions.
I realise that it is not designed as a full race boat but a good boat works in well in all conditions.
Look forward to some sailing vids in the future.


Sometimes it is hard to realize,that this is an international (!) and intercontinental (!) forum...B)...those guys are in Poland,and there is a hard winter there now...nobody(!!) sails(!)boats there now and these folks are putting a lot of effort just to lunch the boat in some lake,just to show it of...come on :D...they need a brake...and you need to cool off from this hot OZZ summer...;)...it's gonna be a great new tri...




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