New sail TNT 34

[bruceb]

That is a really nice looking boat, and it must be close to correct weight, considering it has quite a large "test" crew. Good work! B

[Doug Lord]

Originally Posted by motorcat

First shots from yesterday trial . More to come

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Congratulations, MC- looks great! What were your impressions? Must feel pretty good having done the design and all the tooling!

[motorcat]

Originally Posted by Doug Lord

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Congratulations, MC- looks great! What were your impressions? Must feel pretty good having done the design and all the tooling!

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

[motorcat]

http://www.youtube.com/watch?v=W3YHmkFMpVA

[motorcat]

more shots

[motorcat]

Originally Posted by motorcat

more shots

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.

[motorcat]

http://www.youtube.com/watch?v=zhjFW...g&feature=plcp

[motorcat]

Two new videos at Utube :
* Folding TNT 34 - outboard run - 8,9 Kts on 30 HP power - http://www.youtube.com/watch?v=jQjXB...2&feature=plcp
* TNT 34 - folding on the water - starboard view - http://www.youtube.com/watch?v=AH-ZS...lcp&playnext=1

[motorcat]

final interior and exterior pictures

[Doug Lord]

You guys have done some good work MC-congratulations again!

Question: why did you chose twin rudders-was the center position of the motor the driving factor?

[motorcat]

Originally Posted by Doug Lord

Question: why did you chose twin rudders-was the center position of the motor the driving factor?

The advantages of this set up is as follows:
- More ruder area less leeway=more speed
- When heeled TnT still has better grip than single rudder
- O/B is centered =better flow =speed , 30 hp gave us 9,4 knots

[pogo]

Back to reality.

Claim was 1.5to, according german magazine "Yacht" the boat comes in with 2,2to.

http://www.yacht.de/boote/neue_boote...en/a69691.html

See posting 12.

pogo

[Doug Lord]

From page 1, post 13

Originally Posted by motorcat

Yes , it was mistake in my text above . Our goal is 1600 kg instead 1500 kg I wrote . We are specialst in building multihulls as a very light boats ( sandwich ) . Please visit our web site with power cats www.motorcat.com . The weight of MC 30 fully equipped with power installed ( twin 60 HP outboards ) is about 2200 kg

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Pogo, you're dead wrong.......Seems like a great boat ,right on target.

[motorcat]

Originally Posted by pogo

Back to reality.

Claim was 1.5to, according german magazine "Yacht" the boat comes in with 2,2to.

http://www.yacht.de/boote/neue_boote...en/a69691.html

See posting 12.

pogo

http://www.youtube.com/watch?v=dDdVc...7&feature=plcp - posted at Utube at 24.10.2011

[pogo]

Originally Posted by motorcat

http://www.youtube.com/watch?v=dDdVc...7&feature=plcp - posted at Utube at 24.10.2011

Originally Posted by motorcat

http://www.youtube.com/watch?v=dDdVc...7&feature=plcp - posted at Utube at 24.10.2011

First 1,5to,
then 1,6to,
measured 1,750 to for a naked shell.
Winches , deck-fittings, rigg, rudders, motorbracket, windscreen, a. s. o. ....300+kg
2,1--2,2to as estimated month ago, see posting 12.

pogo