I own an older TheMightyHobie18 with the original 28ft. Mast. I’m building a taller Hobie 18 SX mast from an old standard 28foot mast(and a comp tip) that has no hardware on it. Does the hardware mount in the same place using the same holes as the original masts? Does anyone know where I can get the measurement specs for hardware on an SX mast? Since I don’t race (time mostly) has anyone heard of building taller mast than the standard 29’7”SX mast? (We like to play)

I believe that the hounds are higher on the SX mast. When I was researching putting the spin on my 18, I found that the comptip part numbers were the same between the 18 and SX, and that the part numbers for the standing rigging were different. From that I deduced that the ~1.5 foot difference was in the metal part of the mast, and that the hounds were at the top of the metal in a similar fashion to the regular 18 but 1.5 feet higher.

Thanks for the reply. It's a start. It makes sense that at least the standing rigging would move up some. I'm also trying to locate another SX in my area to measure.

thanks again.

- jim s

Just confirming that the 18SX mast extrusion is ~18" longer than the standard 18. The comp-tips are the same. I have both set ups and ended up transferring the SX spinnaker tang over to the magnum rig. I made all the measurements you're referring to at that time. Regards, Troy.

I saw an 18SX mast this week right next to a stock AL mast.
The old tang holes were full of pop rivets, and tang was attached 18 inches higher. I shipped them both to my friend in Vienna Austria years ago. I can get my friend to measure them- response by email I betcha!

Thanks dave, much appreciated. Be nice if the extrusions -aluminum and glass - could be measured as well, but I will take anything I can get.