I have two of the Harken 22mm micro cheek blocks on my M17, you can see them in the pics I posted of my clew reefing a while back. They were on there when I bought it, I just moved them to different locations. For the third cheek block (for 2nd reef) I used this Racelite: https://www.duckworks.com/product-p/rl-340.htm I think it is actually rated higher strength than the Harken, and quite a bit less expensive. But it will not sit on a curved portion of the boom as well as the Harken ones. Not an issue for my 2nd reef block, which sits highest on the boom, on the flat part (also in pics). But it wouldn't have worked for the outhaul or 1st reef as they sit on curved parts of the boom, partly at least. cheers, John On 7/21/19 7:11 PM, Gerry Lempicki via montgomery_boats wrote:
Hi everyone, Well we have been having a blast on our resurrected M17, sailing 42+ hours in the last 2.5 weeks. We've had great conditions and fantastic help. One thing we noticed was that we have a tight "pleat" or vertical line forming in the mainsail above the block attachment point for the main sheet. I don't imagine this is very efficient. Tonight we took the boom off and brought it home. I put a 7' straightedge/level against it, and found there was a 3/8" gap between the boom and the straightedge over the attachment point, so the boom has been stressed and bent. Does anyone know who made this profile and if it is currently available? It measures roughly 2-1/8" x 2-3/4" (not exact), and I don't see anything similar on Dwyer's site. For now I clamped it to my welding bench and was able to carefully persuade it to straighten out. I don't see any cracks, etc, but if it bends again I'll want to replace it. If I change the profile, I assume I'll need a new gooseneck and other hardware.Also, if you have blocks to redirect clew reefing lines on your boom, what size/model do you have? I'm wondering if these are strong enough for this purpose. https://www.defender.com/product.jsp?name=harken-22-mm-micro-block-cheek-block&path=-1|118|2358452|2358453&id=172392What kind of loads are on blocks for reefing lines? The above are rated to 200lbs. Thanks!-Gerry
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