Jib Boom
#1
Junior Member
Thread Starter
Join Date: Dec 2009
Location: Anchorage, AK
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Jib Boom
New to RC sailing dont even have boat yet, building IACC120 NZL-92. This may have already been asked and answered, if so I was unable to find the answer.
My question. Why is the jib club boom so much in favor and not a hoyt style boom?
My initial thoughts are, the hoyt style boom offers much more. realistic, forestay, no need for jib topping lift.
#3
Junior Member
Join Date: Mar 2009
Location: Redmond,
WA
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
RE: Jib Boom
It may have something to do with the need to build a very strong bit of underdeck framework to hold the spar, and to provide a means of low friction ability to turn, plus the boom itself needs to be very stiff, so all in all looks like a bunch of weight crowded out at the end of the boat that doesn't help pitching moment, or yawing moment either. They have been tried in several R/C classes, and after a bit of experimenting traded in on the more traditional counterbalanced jib club with topping lift.
Rod Carr
AMYA #2
Rod Carr
AMYA #2
#4
Join Date: Jul 2007
Location: Blackpool Lancs, UNITED KINGDOM
Posts: 1,432
Likes: 0
Received 32 Likes
on
32 Posts
RE: Jib Boom
On any model yacht the need is for everything above water to be light. It also has to be strong enough to stand up to the forces imposed. In the case of moving parts, they also have to be free running/swivelling. Being on a remotely controlled model, it needs to be capable of operation without on-board attention.
The conventional jib setup as used by the racing lads has become conventional because it works very well. The semi balanced jib boom with both leech and luff lines maintains a constant sail shape, is self tacking, and makes a forestay redundant. It also does not need an excessively engineered swivel.
The conventional jib setup as used by the racing lads has become conventional because it works very well. The semi balanced jib boom with both leech and luff lines maintains a constant sail shape, is self tacking, and makes a forestay redundant. It also does not need an excessively engineered swivel.