Both the Scanstrut and Seadog mast radar mounts recommend an adapter (costing half as much as the mount) for use on Isomat spars. The reason seems to be the integrated spinnaker pole track. I'm assuming the mounts need to be placed further back so the rivets can protrude i nsude the mast for proper installation?
But, I was not planning on using rivets (I don't have access to the heavy-duty gun needed for SS rivets). I plan to drill and tap and use fine thread screws - as I have seen many people do.
So if I am drilling and tapping, would there still be an issue with the integrated track? Looking at the mast cross-section, there would be greater aluminum thickness where the front bolts attach. It would just be a matter of a deeper hole and longer screws.
Curious if anyone has bolted their mount to an Isomat spar? I hate to spend 50% more on an adapter if it's only required for using rivets. But if there is a legitimate reason, I have no issue "doing it right".
Thanks,
Chris
But, I was not planning on using rivets (I don't have access to the heavy-duty gun needed for SS rivets). I plan to drill and tap and use fine thread screws - as I have seen many people do.
So if I am drilling and tapping, would there still be an issue with the integrated track? Looking at the mast cross-section, there would be greater aluminum thickness where the front bolts attach. It would just be a matter of a deeper hole and longer screws.
Curious if anyone has bolted their mount to an Isomat spar? I hate to spend 50% more on an adapter if it's only required for using rivets. But if there is a legitimate reason, I have no issue "doing it right".
Thanks,
Chris