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It looks like the 10 gauge pipe I am using for the new mast (three pipes, so two joints) has an OD of 2.375", a wall thickness of 0.130" and an ID = 2.115" (53.75mm). Now to locate a suitable tube to slide inside the mast pipe to reinforce each of the two joints, maybe have 18" to 24" of overlap at each join like I have with the current mast. I see some 6061 aluminum tube with a 2" OD and 1/2" thick wall that might work. Or maybe it's better/stronger if the joint pipe goes over the mast joint instead of inside the mast. More research to conduct... I will have to check out the strength of it compared to the strength of the mast. I am hoping not to have to use steel pipe for sleeves here to save weight.

[QUOTE="TimmyTheTorch, post: 814421, member: 64271"] It looks like the 10 gauge pipe I am using for the new mast (three pipes, so two joints) has an OD of 2.375", a wall thickness of 0.130" and an ID = 2.115" (53.75mm). Now to locate a suitable tube to slide inside the mast pipe to reinforce each of the two joints, maybe have 18" to 24" of overlap at each join like I have with the current mast. I see some 6061 aluminum tube with a 2" OD and 1/2" thick wall that might work. Or maybe it's better/stronger if the joint pipe goes over the mast joint instead of inside the mast. More research to conduct... I will have to check out the strength of it compared to the strength of the mast. I am hoping not to have to use steel pipe for sleeves here to save weight. [/QUOTE]

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