IOMICA Forum

I forgot to add that Texalium is typically used only as the outer ply of a composite while the other ply's are standard fiberglass.

Rey

If you Google Texalium, you will find a number of exagerated claims of its properties - here is a quote for the Technofibre Carboflex 130 squash racket

"Texalium developed by Hexcel is an exclusive fibre mostly used in aircraft and spacecraft industries. The secret is its stiffness to mass ratio ...

Hi Gilbert,

We will be posting pictures in the US National website shortly.

The URL to the site is: http://www.onemetre.org/

Regards,

Rey

Congratulations to Craig Mackey for winning the 2005 US National Championships. Well done, Craig!

Below are the final results.

1 Mackey, Craig 29 Seattle, WA Patriot 75.890 66.0
2 Silverman, Richard 114 Miami, FL Ericca 2400 74.0
3 Gibson, Brad 42 Australia Disco 36.370 76.0
4 Landeau, Steve 112 ...

Results Day Two.

Position Skipper Sail No. Club Design Points
1 Mackey, Craig 29 Phoenix, AZ Patriot 25.0
2 Gibson, Brad 42 Australia Disco 47.0
3 Pedrick, George 50 CA Vapour 51.0
4 Silverman, Richard 114 Miami, FL Ericca 58.0
5 Busalacchi, Filippo 51 San Diego, CA Xtreme 64.0
6 Pandiani, Filippo ...

Position Skipper Sail # Club/City Design Score

1 Mackey, Craig 29 Phoenix, AZ Patriot 10.0
2 Busalacchi, Filippo 51 San Diego, CA Xtreme 25.0
3 Gibson, Brad 42 Australia Disco 27.0
4 Pedrick, George 50 CA Vapour 28.0
5 Pandiani, Filippo 80 San Diego, CA Ericca 28.0
6 Silverman, Richard 114 Miami ...

Hi Ray,

Sorry, I have to jump in here.

Texalium is the brand name for a fiberglass cloth from Hexcel Composites that has been coated with a 200 Angstrom (200 billionths of a meter) of some other material for a cosmetic finish - Aluminum for a Silver finish, Rodium for the Gold finish, Graphite for ...

Hi Lester,

Good point on the wiring.

The 5745 and 5995TG have similar stall currents, 4000mA and 4200mA respectively. The 5595TG is more efficient in that it draws 3mA (idle) and 300mA (running) ve the 5745 which draws 3mA (idle) and 700mA (running.)

The one issue that I had with the 5995TG early ...

The 5745 is a good servo to use. I have been using its predecessor (5735) for over 3 years on one of my boats and it has performed flawlessly. It takes a lot of abuse...

As for the 5995TG, I have been using them on three other boats since they first came out last year and have not had any problems ...

I have not had the kind of negative experience Jon has had with the 5995s. On the contrary, I am quite happy with them, despite the minor early problems.

An alternative to the 5995TG is the 5955TG which has the same specs but a different case with a heat sink. Unlike the 5995TG, the 5955TG does not ...

I have been using 5995TGs on 3 boats for over six months now and have been quite happy with their performance and reliability (after discovering a minor issue.) The 5995s replaced 5735s on my boats, at less than half the weight and less current draw (see a previous post from me on this thread.)

The ...

I have been using a 5995TG for about a month now. It replaced a 5735MG. One word: awesome!

A couple of lessons learned that might be useful to anyone considering using it.

1- Unlike the 5735, the 5995 comes pre-programmed for 180deg travel. I made the mistake of using the Hitec programmer to set ...

Try http://www.servocity.com/html/hsr-5995t ... orque.html

They have them in stock.

/) Rey

Hi Lester,

Interesting how this discussion has evolved, isn't it.

Let me define GRP as I understand it so we have a common basis: GRP (Glass Reinforced Plastic), also knowns as Fiber Reinforced Plastics (FRP), GFRP (Glass Fiber Reinforced Plastic), FRP (Reinforced Plastic), is defined as a ...

My reading of the manufacturer's description is that Texalium is "a fibreglass fabric with a coating of aluminum". Again, on no official basis, I believe that if such a material is used to form a hull, the result is not "glass fibre reinforced plastic".

Lester,

I am not sure I understand your ...

I use an arm winch in my IOMs.

The setup is similar to what you describe: an arm with a block attached to its end. The sheet control line is dead ended (with a bowsie to provide adjustment) and the other end goes through the arm block and routed to a through deck block to a turning block at the ...

My question would be, would a IOM class measurer be capable of seeing that the material was texaliumGRP and not std GRP. What does it look like - can you actually see the aluminium?A photo would be nice Jorge!

Go to http://www.robotcombat.com/marketplace_carbonfiber.html and select
"Raw Fabrics ...

But if you made a hull layup using texal..-whatever - you would, in a sense, be using a material that could be best described as "glass & metal fibre reinforced plastic" - which probably doesn't fit any of the permitted materials listed... See where I'm going here?

With all due respect, Texalium ...

I'm wondering if the ability to sheet in or gybe extremely quickly with one of the new Hitec digital arm winches could constitute a form of illegal propulsion. Certainly if one were to repeatedly pump the sails or execute a series of very fast gybes "unrelated to changes in the wind or to tactical ...

Hi Rey,

can you tell me: how long is the arm of your hitec-servo?

thanx
Rainer

The Hitec 5735 comes with an arm that is 1inch long, from center point to end attachment point. I built a 3.75inch long arm, from center point (servo screw) to sheet pivot point, which attaches to the Hitec arm. With ...

PS: I have used the HS5735 with the A rig without any problems up to 13kts (didn't have a B rig.) The holding power of the 5735 is phenomenal - better than the 815BB, but it is more power hungry.

If you plan on using a 5735, use the programmer to slow it down - it is way too fast.

Rey

Since I use arm winches in both my IOM and Soling 50, I calculated mainsheet load and jib sheet load for the IOM A rig for various wind speeds. The Hitec 5735MG digital servo theoretically does not run out of steam till ~18knots wind speed.

I used the following formulas for calculating approximate ...