Cut not your main
Lizzy:I suspect you will find sailing with a bimini supported by anything other than stout stainless steel tubing frustrating. This kind of bimini installation is both expensive and semi-permanent. Is that really what you want? Also, many biminis will become uncomfortably unpredictable in apparent winds over 12 knots. Yes, a strong bimini can be constructed to withstand much higher winds, but you will find that the bimini is really practical only while on the hook (or at the dock).So, build yourself a bimini that will sit on top of your boom. The tarp can be made of any of a variety of fabrics. Generally speaking, you will be happier longer if you use a high and more expensive grade of fabric—sunbrella comes to mind. I made mine and (trust me on this one) you can make yours. Support the tarp with three 1" pvc pipes. Two pipes rest on the boom and one is fastened to the backstay. I simply sewed sleeves for the pipes to sit in on the underneath side of the tarp. If you hold your boom up with a toping lift or main halyard, then sew a small hole in the tarp for the halyard to pass through. Attach a line at the end of each pipe to tie the tarp down to the life lines or toe rail.When it is time to pull up the anchor, role the whole thing up and tie it down it on the deck or cabin top. If you want more information or have questions, email me at: pjwalch@sprynet.com