Anything on the outboard end of the boom needs to be reliable. With rig feathered it takes a snake-like crawl along the boom over water to free a jammed outhaul if you do not want to go to the effort of lowering/furling sails to allow the boom to be swung over the deck or cabin. Crawling the boom is only something contemplated in low wind and undertaken by those who eat Kevlar or iron filings for breakfast.
With the Baelstrom rig the main cannot be reefed without furling the jib for risk of jib overpowering the main. Even releasing the outhaul on the main can make rig "feather" with jib downwind unless the jib sheet is released as well.
Although there are not a lot of winches, their layout needs careful consideration to avoid clashes as the ones at the base of the mast can be close to the sheet winch on the deck. The 18m proa has some pinch points with winch handle and other winches. There needs to be ample allowance for knuckles on a handle considering all possible positions of the mast rotation, winch rotation and combinations of handle in winches.
Another potential clash that needs considering is the clearance of both ends of the boom over the cabin when the boom is in its lowest possible position. The boom usually wins in a clash between it and solar panels!. Do not assume that the main end of the boom will never be over the cabin - accidentally. For example, if outhaul or main halyard is accidentally released while reaching there is a good chance the jib will turn down wind and there will be enough free sheet to allow the main end of the boom to come over the cabin.
I can only say in theory a schooner rig would be a better choice for a HP as a cruising boat because my only experience is with the Baelstrom rig on the proa. In schooner configuration it would be desirable to have the booms short enough not to reach the cabin. Then they could be set lower to improve span efficiency by reducing gap over the lw hull.
The devil is in the detail, which is easy to overlook.
All that aside I doubt there are many sailing boats with two double cabins having separate heads, a galley with 3m of headroom, cabin with 2m of headroom able to sit 8 people as well as a spacious open deck; all able to lope along easily at 12 knots in 15kts of wind driven by 80sq.m of sail controlled by 3 small winches and a handful of jammers.
Rick
On 14/02/2015, at 10:19 PM, "fvonballuseck@gmail.com [harryproa]" <harryproa@yahoogroups.com.au> wrote:
But only the people like Rob etc who have experienced it on HP could give an experience based answer - and I guess there seems to be little worry. But then again I hear Rob eats Kevlar for breakfast so may not be the average sailor :-)
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Posted by: Rick Willoughby <rickwill@bigpond.net.au>
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