2nd Tw28 from Turkey

[cumhur]

To day, I start to build strong back , one side long beams atached by marine glue from osb( 20cmsX4cmsX780cms). That dimentions is enough ?
I know , you think , why osb? because I heve to much new conditions osb plate from other project. I must use or I must throw away.
By the way, To day 10 th days, still waiting.
Cumhur

[cumhur]

double post, sorry

[TheBroomside]

cumhur,

Nice to have one more fellow TW28 builder. Your building space also looks great.
I would wait for the plans to make the strongbacks. We did put the crossbars at the location of the molds. In that way the poles supporting the molds were supported by the beams and the crossbars. I do not know about the OSB, probably it is OK. The poles supporting the molds can rest on the floors anyway.






Good Luck.

Keep us posted!

Peter
LUS

[cumhur]

Hi Peter,
Thank for answer,
Osb means, pressed wood pieces by glue as sheet looks like playwood , they use for roof making. my osb thicknees are 20mm, I atached two sheets with glue by unequal lenght and made it 780 cm lenght , thicknees 4cms wide 20 cms,
is this enough for one side mold ?
Cumhur

[cumhur]

Hi,
I want to build strongback to be ready for tw28 plans, ( I am still waiting the plans). So, any body has idea that about strongback dimention? What is lenght overall and wide?
Thanks
Cumhur

[TheBroomside]

Cumhur,

The plans show a length of 8230 mm and a width of 1219 mm for the 'typical' strongback.
It also states to locate the transverse beams according to mold beams (see my message above).
The spacing of the molds is :
A-A : 933
B-C : 934
C-D : 767
D-E : 780
E-F : 994
F-G : 1019
G-H : 1146
H-I : 730
I-T : 363
I would wait for the plans, ... but I understand your impatience.
About the beams, your strongback should be very stiff. It should hold the molds in place that define the hull form. There is quite some tension of the panels when you stitch them together. My opinion is that the 4 cm beams will not be stiff enough, I would make them 8 cm.

Enjoy the build.

Peter
LUS

[TheBroomside]

Cumhur,

Did you have the opportunity to talk to Yavuz?
Can you give any update on the performance of his TW28? Could you ask what prop size he is using now?

Thanks,

Peter
LUS

[cumhur]

Peter,
Thanks for info abouth strong back dimentions. Yes, I must wait the plans , but, you know !!!
I have mr Yavuz cell phone number, I will call him monday.
see you
Cumhur

[jacquesmm]

Please wait for the plans.
The strongbacks dimensions are only a suggestion. You can make them differently but you should not make a decision without looking at the plans.

[cumhur]

Hi Jacques,
Thanks for advice. I am waiting your beautiful boat's plan.
But, ask me, how ? To days 15 th.
Bye
Cumhur