On Fri, Apr 28, 2017 at 1:01 AM, Michael Gehl mike@vail.net [harryproa] <harryproa@yahoogroups.com.au> wrote:
I’m somewhat confused by this - it looks like you’re handling the mainsheet, but there is another line to near the base of the mast; given the horizontal wisbone that must be used as a vang.
It is the vang, but it is only 1;1. This will be corrected next time.
Is it not the purpose of a wishbone boom to provide both an outhaul and a vang, if angled properly?
yes, but the downside of the correct angle is that the end of the boom is low, meaning poor visibility and hitting the water in extreme hull flying. There are also times when you want to alter the foot and the vang separately, but this is a minor consideration.
Also, conditions/speed?
In the video, about 10 knots of breeze, 6 or 7 knots of boat speed.
A quick camera glimpse up the mast would be nice.
True, but the sail setting was very ordinary so I am not too upset that it is not visible. Once I get it all sorted out, the videos etc will become much more detailed.
Thanks,MikeOn Apr 27, 2017, at 7:13 AM, Rob Denney harryproa@gmail.com [harryproa] <harryproa@yahoogroups.com.au> wrote:On Thu, Apr 27, 2017 at 2:28 PM, doha720@yahoo.co.uk [harryproa] <harryproa@yahoogroups.com.au> wrote:Thanks Rob,
That's interesting to see how the sail and boom look.
Seems very high up at the clew.
So then at least visibility is improved.
The deck hugging booms, eg Sidecar was limiting the vision at least sideways to lw.
The boom is too high, will fix it with the complete sail. Vision is one aspect, the other is to keep it out of the water in an extreme hull fly. There is nothing worse than pushing on the main sheet to ease the sail which can't be eased because it is in the water.
So you lead the sheet back from the boom, not down to block first, is that better angle to control sail?
Yes, and because the mainsheet is too short. There is some development to happen here. Luc,The main luff is a lot shorter than the mast length (sailmaker error, but not a critical one at this stage) so there is scope for moving it up and down by adjusting the halyard lock. Will be doing this next time I sail.The wind tunnel is out the front of my house. ;-) Hopefully next week i will be playing in it.
Doug
____________________________________ Note: I will be retiring the mike@vail.net email address shortly. Please update my address in your contacts to mike@gehlvail.netThanks.
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Posted by: Rob Denney <harryproa@gmail.com>
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