[comship]

Having seen that many designers well respected from the entire Yachting community are members of this forum, I would like to ask their opinion about the mast which shall be installed on Our Yacht. The following design has been prepaired as the equipment which shall be installed is many and We have tried to respect each manufacturer recommendations. The Yacht is a Maiora 31 and all opinion are welcome. Please note that we haven't proceed with the construction yet as I wanted the specialists opinion

[Garry Hartshorn]

Lot of stuff up there. Having just spent quite a bit of time dealing with issues with our seatel, check on the seatel specs for distance from the radar.

[comship]

Both Radar Antennas are placed higher from both Seatel antennas. But apart of this whats your opinion about the appearence?

Talking about the staff you have to see the W/H and fly bridge stations

[Garry Hartshorn]

Hard to say without seeing a complete vessel profile drawing, I suspect for such a sleek yacht as a Maiora 31 it may be a bit much.

[comship]

Below find two photos of the an ordinary Maiora Yacht . In the first photo is the standard maiora 31 mast, and the second shows a maiora 31 profile

[Garry Hartshorn]

You might get away with it. But on closer viewing I was bothered by the size of the tubing that the mast is made of and wondering if it will support all that stuf without flexing, I am assuming that the structure is built with 50mm (2 inch) pipe

[HONGKONG]

If your specing a dual-axis SEENITE, you might consider the highest possible location on your mast for full 360 viewing. The GPS receivers would also benefit from increased separation from the mast. And finally, (and to me, most importantly) move those KALENBERG T3's to over the wheelhouse, infront of the FB). Nothing like repeated toots from those babies behind you to make you type in all caps!!!

[comship]

First of all the entire roll bar is made by carbon fiber and epoxy resins as per my order to the shipyard. As per the metal structure shall be made with 1 1/2 inches tube

[comship]

Originally Posted by HONGKONG

If your specing a dual-axis SEENITE, you might consider the highest possible location on your mast for full 360 viewing. The GPS receivers would also benefit from increased separation from the mast. And finally, (and to me, most importantly) move those KALENBERG T3's to over the wheelhouse, infront of the FB). Nothing like repeated toots from those babies behind you to make you type in all caps!!!

The ideal position of the seenite would be on the top but having in mind that it will be used for navigation purposes thus +-90 degress vissibility is ok and the weight of the seenite itshelf is about 50 kg, We should have an enormous mast thus an ungly looking structure for this yacht

[HONGKONG]

Originally Posted by comship

First of all the entire roll bar is made by carbon fiber and epoxy resins as per my order to the shipyard. As per the metal structure shall be made with 1 1/2 inches tube

My dune buggy has a roll bar, my 427 Cobra (replica) has a roll bar and as I look out my living room window my ITALIAN boat has a....nope it's a radar arch....and it's defined as such in my much too numerous Italian printed owners/operators manual. But perhaps my point is if (and I realize that this is the subject for a whole 'nuther topic) if we are all to speak of the subject we love, (yachts) shouldn't we all be conversant in the language of the sea and ships. It should be the gentle responsibility of those with sea legs to encourage those without them to learn.

[comship]

The point wasn't the terminology but the appearence. In Italian shipyards they call it roll bar

[Garry Hartshorn]

I have never met comship but I suspect his first language is not english so fair go.

1 1/2 inch tubing for the mast structure sounds a little light, I would be very concerned about the structure flexing. I am sure the arch will be fine.

[comship]

Yes my first language is not English and I am sorry if I do make mistakes.

Regarding the mast tomorrow I will review the drawings and propose the incorporation of 2 inches tube. Thank you Garry for your kind assistance

[Garry Hartshorn]

May I suggest iust raising the concern and let the designers figure out the detail as I am not even sure that 2 inches would be correct. I just think 1 1/2 is a little light.

[comship]

According to the Shipyard's Project manager 1 1/2 inches should be ok. Now I am worrying