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| Home >> Class Rules - Queries & Suggestions >> Compass bracket attachment |
18/08/2024 17:38:00
sandy
Posts: 15
Hi Sandy,
Class Rule C5.1(b) does indeed allow the location of a compass to be 'on the centerline between the back of the mast and the front of the vang cleat'. That is to enable a compass (particularly single screen compasses) to be further forward so the screen is readable.
As per C5.1(l) velcro is permitted for attachment and it is certainly the intention that if the bayonett was not used then velco may be an option to affix.
It looks like the word 'bonded' in the opening paragraph of C.5.1 needs clarification or edit.
I have made David Rickard, our International Measurer and Chair of our Technical Committee, aware of this thread and he will respond soon.
Class Rules; https://www.rsaerosailing.org/docs/442840348.pdf
Reply
Class Rule C5.1(b) does indeed allow the location of a compass to be 'on the centerline between the back of the mast and the front of the vang cleat'. That is to enable a compass (particularly single screen compasses) to be further forward so the screen is readable.
As per C5.1(l) velcro is permitted for attachment and it is certainly the intention that if the bayonett was not used then velco may be an option to affix.
It looks like the word 'bonded' in the opening paragraph of C.5.1 needs clarification or edit.
I have made David Rickard, our International Measurer and Chair of our Technical Committee, aware of this thread and he will respond soon.
Class Rules; https://www.rsaerosailing.org/docs/442840348.pdf
Reply
16/08/2024 11:18:00
Peter Barton
Posts: 5000
SInce I posted the original query I noticed a reply to a post in the "technical" section of the forum suggesting that compasses with a single display may be mounted further forward than the bayonet fitting. This presumably requires some kind of adhesive material to attache the compass mounting, which suggests that something like self-adhesive velcro for attaching the mounting may be legal.
Also Rule C5.1 (i) lists under items that may be used and attached to the hull or rig... include " mounts, fittings, rope, shock cord, Velcro, and cable ties for attaching any of equipment/items (a) to (k) in this section and the equipment referred to in C.5.2 below to the boat providing that attachments do not puncture the surface of the boat, spars, sail, or hull appendages, and can be removed without damage to any of them.
However it still isn't 100% clear to me whether self-adhesive velcro (or dual lock) is regarded as "bonded to the boat" as described in the preamble to C5.1 and is hence illegal, or whether it can be argued that it "can be removed without damage" as in C5.1 (i) and is hence legal.
Reply
Also Rule C5.1 (i) lists under items that may be used and attached to the hull or rig... include " mounts, fittings, rope, shock cord, Velcro, and cable ties for attaching any of equipment/items (a) to (k) in this section and the equipment referred to in C.5.2 below to the boat providing that attachments do not puncture the surface of the boat, spars, sail, or hull appendages, and can be removed without damage to any of them.
However it still isn't 100% clear to me whether self-adhesive velcro (or dual lock) is regarded as "bonded to the boat" as described in the preamble to C5.1 and is hence illegal, or whether it can be argued that it "can be removed without damage" as in C5.1 (i) and is hence legal.
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16/08/2024 10:51:00
sandy
Posts: 15
Thanks for the suggestion.
But I'd still prefer to use the self-adhesive velcro if it's legal, so a comment from the class measurer would be welcome!
Reply
But I'd still prefer to use the self-adhesive velcro if it's legal, so a comment from the class measurer would be welcome!
Reply
13/08/2024 12:08:00
sandy
Posts: 15
I use it to trap my painter. Simply tuck the painter hard under the backet to stop it moving. Works a treat and you can just pull the painter clear when you need it.
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12/08/2024 17:14:00
Gareth
Posts: 173
Thanks Ron.
Like you I had also thought of using a rubber packer under the bracket, using pro grip or similar, but Id prefer to use the Dual lock / velcro approach if it's legal, so I'd still like to know the answer!
Reply
Like you I had also thought of using a rubber packer under the bracket, using pro grip or similar, but Id prefer to use the Dual lock / velcro approach if it's legal, so I'd still like to know the answer!
Reply
11/08/2024 21:42:00
sandy
Posts: 15
Hi again, Sandy,
I looked at my compass bracket today before sailing, realised my memory isn't what it used to be.
I actually used waterproof double sided tape to stick 4 pieces of thick bicycle tube rubber under each corner of the compass bracket,so that firms up the contact to the deck nice and snug on the bayonet mount, but still easily removable when required.
How this helps,
Cheers, Ron
Reply
I looked at my compass bracket today before sailing, realised my memory isn't what it used to be.
I actually used waterproof double sided tape to stick 4 pieces of thick bicycle tube rubber under each corner of the compass bracket,so that firms up the contact to the deck nice and snug on the bayonet mount, but still easily removable when required.
How this helps,
Cheers, Ron
Reply
10/08/2024 14:25:00
RonF 'Delphine'
Posts: 33
Hi, you can easily firm up the mount on the bayonet fitting, by adding a bit of tape under the carbon fibre compass bracket.
And sometimes the bayonet mount is a bit loose if e.g. the central screw is a bit loose and needs tightening, or the rubber grommet is a bit old and hard no longer soft rubber... but again, a bit of tape under the carbon fibre bracket can get around this.
Some people also just apply a bit of tape over the edge of the bracket to keep the compass bracket from moving, but I've never had the need for this.
If I'm up there knocking the compass around, compass heading is the least of my worries.
On really really light days, if I'm sitting up near the compass mount, I'm just wanting to keep the boat moving, and I'll take the compass off the bayonet and push it right forward out of the way anyway. Heading is the least of my worries in those conditions,I'm spending more time looking for puffs of wind and what my competitors are doing.
Good luck and fair winds!
Reply
And sometimes the bayonet mount is a bit loose if e.g. the central screw is a bit loose and needs tightening, or the rubber grommet is a bit old and hard no longer soft rubber... but again, a bit of tape under the carbon fibre bracket can get around this.
Some people also just apply a bit of tape over the edge of the bracket to keep the compass bracket from moving, but I've never had the need for this.
If I'm up there knocking the compass around, compass heading is the least of my worries.
On really really light days, if I'm sitting up near the compass mount, I'm just wanting to keep the boat moving, and I'll take the compass off the bayonet and push it right forward out of the way anyway. Heading is the least of my worries in those conditions,I'm spending more time looking for puffs of wind and what my competitors are doing.
Good luck and fair winds!
Reply
08/08/2024 09:32:00
RonF 'Delphine'
Posts: 33
I have been using a compass bracket mounted via the bayonet fitting on the deck. However I find that the bracket may be inadvertently rotated whilst sailing rendering heading data useless.
C5.1b states that the bracket "may use the Originally Supplied bayonet attachment". The use of "may" implies that this is not compulsory. However the preamble to C5.1 states that the attachments must not puncture or be bonded to the hull.
I would like to attach the bracket to the deck on the centreline, between mast and vang cleat, using a couple of small strips of self-adhesive velcro-like material (e.g. 3M Dual Lock). In my other boat this has proved very successful. In this case only the dual lock strips would be attached to the Aero hull - the attachment itself (i.e. the bracket) would be removable.
But it isn't clear to me if such self-adhesive strips are legal under C5.1 (i).
Is this acceptable according to C5.1? And if not, could I request that this be considered for a future rule amendment?
Thanks.
Reply
C5.1b states that the bracket "may use the Originally Supplied bayonet attachment". The use of "may" implies that this is not compulsory. However the preamble to C5.1 states that the attachments must not puncture or be bonded to the hull.
I would like to attach the bracket to the deck on the centreline, between mast and vang cleat, using a couple of small strips of self-adhesive velcro-like material (e.g. 3M Dual Lock). In my other boat this has proved very successful. In this case only the dual lock strips would be attached to the Aero hull - the attachment itself (i.e. the bracket) would be removable.
But it isn't clear to me if such self-adhesive strips are legal under C5.1 (i).
Is this acceptable according to C5.1? And if not, could I request that this be considered for a future rule amendment?
Thanks.
Reply
07/08/2024 15:00:00
sandy
Posts: 15
