How to avoid a Chinese Gybe :- GTR Racing
ฝัง
- เผยแพร่เมื่อ 16 ส.ค. 2016
- Watch GTR Racing wipe out going from upright to laid over in less than 5 seconds. Continue viewing to learn what went wrong and how you can prevent it happening too you.
The Chinese Gybe or Death Roll is an uncontrolled gybe, the are many factors which can lead to this which are explained in detail in the video, including some top tips to avoid it from happening to you.
If you get it wrong the top of the main sail will flip from leeward to windward, as the wind fills in it will force the boat to bear away often with such force that that skipper can not correct the unwanted turn by moving the rudder. The result is an uncontrolled gybe which will often result in the boat laying flat in the water.
In this case the recovery was made more difficult as we lost control of the spinnaker which made getting the boat back under control even more difficult.
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Well, it may be the result of the clip, but it appears to me that they had too much sail up, and not enough guys controlling the strings. Letting the main wang over like that could have resulted in a fatality. That stay sail might have been better off down, at least for the gybe. I thing that few yachtsmen know is when to lessen the sail area, at the risk of some speed in order to maintain control. Too much reliance on the 'Christ I hope it all works out OK' way of racing.
Main issues was not enough guys controlling the strings. The crew miss read the sailing instructions and were not sure if they were still racing. There was only 8 to 10 knots of breeze so not enough to reef. The crew got caught out be a puff that went from 8 to 14, the large increase with the lack of control of the strings caused the loss of control.
Neat video. 'Quite broad' is an understatement I think. Judging from the boats heading upwind around you, you were sailing by the lee during the set so were already very close to gybing. That's also why the chute filled like it did. If the vang had not been eased so much, you probably would have gybed much earlier.
Fixing just 1 or 2 of the many things wrong with this setup may have avoided the wipe out. Have the vang on would have tightened the leach of the main giving the boat weather helm which may have stopped the gybe from happening. I would have had to have been sailing higher if the vang was on to prevent the uncontrolled gybe, when you have the vang off as we did you can run lower but run the risk of the main gybing up high due to the lack of leach pressure (which was the main issues).
Lots of ways to do better, having the vang on would helped as we would have been sailing the boat differently than we were with it off.
This may be a really dumb question - but why does the boat not have some kind of boom brake so that the rig does not get damaged when slammed with this type of accidental gybe?
Not a dumb question. Some boats will rig a gybe preventer to stop the boom from swinging across. These are mainly used on cruising boats or when sailing short handed. It is not practical when racing. The main risk with this is the boom hitting someone, if you feel the boat starting to roll remember to keep your head down. Most times when this happens the rig will be fine as the boom has a semi soft landing when it hits the water on the new gybe.
Well,,
Good analysis but the guy with the cigarette?, Did he really need that thing lit with the boat over on its side?
And I'm glad the kid was wearing a pfd, at first it didn't look like he had one on but he was picked up by it. He may have been scared but he will recover and maybe by now he has his own good respect for the water.
But that cig... Sheesh
As all skippers know sometimes it is hard if not possible to control the crew, even when they are on a smoke break....
Yes the young man had a PDF on a great respect for the water after being on board and watching the replay a few times.
At least old mate didn't lose his durry!
Quite a skill, calm under pressure and manage to pull my son out of the water and stir him down below while we recovered 😁
Congrat ..
Broach couldnt make wet your cigarette…:))
Indeed, quite a skill :)
and you "professional" sailors wonder why the rest of us "cruiser" sailors don't use, or fear spinnakers, Gennakers, and the like?....this is why, 'cause we own our boats, and don't want to sail them recklessly. (PS: I didn't see any Chinese on that boat, so why dance the Chinese jibe?).
I have had many comments about this video telling me I was an amateur, so thanks for calling me out as a pro.... While I make a little bit of add revenue for this channel, the whole crew is 100% amateur...
I own the boat and hate breaking things, with that said we like to push it hard.
If you follow the tips in this one on how to avoid you should not be scared of giving it a go, it can be done safely with a little bit of practise 99% of the time.
If you are interested how we built this racing boat on a budget check out this playlist. A little bit of hard work and get you a racing boat on the cheap, if you have good crew around you like I have !!!!
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one other observation, not to assume anything, but most "trailer sailors" that do use spinnakers, Gennakers and 'code' sails in particular, use what's called a 'sock', the thing is raised fully, like a folded bed sheet, and the sail is only powered up when they want it to, by elevating the fish mouth of the sock, so the sail is powered up gradually, as the sock lets more and more of it 'see the wind', and if any prob's arise, it is quicky doused again, and no issues with shorthanded crew, as the thing is 'safe' unpowered and just cones down 'easy' ready for the bag below; is this just a bit to cumbersome for racing?, don't know, but a thought?: if more racing boats used one, there would be far less "embarrassing" footage of the boat 'tacking' at 80 degrees of heel, only to come safe again, by just dumping the spinnaker sheet! @@BottomUPBoats
@@andyvan5692 the sock is a great option for short handed sailing or cruising.
As you pointed out it is a little slower and cumbersome when racing.
Every second counts under IRC.
One other thing to do to get more stability is to over sheet the kit. The depowers it and can stop the rocking.
It good tip for beginners, you can let it breath more once you build you confidence 👍
"Chinese" jibe?? Really? I think your bow and mast men should lay off the Chinese buffet and focus on rigging the gear correctly. And your first move with the tiller was the wrong direction. How about no stopper knots in your spin sheets and guys. Spin trimmer should have blown that sheet as soon the spin center-of-effort went laterally to windward.
There was a lot wrong with what we did, hence the video so other can learn from it and hopefully avoid it doing the same while they are racing.
Not sure if the comment on the first rudder movement was true, the first flick was not me moving the rudder it was the force of the water which moved it, I then tried to correct it but it was to late and only a matter of seconds before we were on our side.
I take your point on the knots, without them the kite would have been easier to retrieve as long as the windward ones did not run all the way out, the risk is you have dump the kite completely if this happens.
The foredeck did everything right, the had the guy clipped in, the footage was not clear enough to figure out why it popped out. Our bowman is well into his 60's and still going strong he will always have a place up the front as long as he wants it. I would not swap him for anyone !!!
@@BottomUPBoats I'm 61 myself and just got home from 8 hours on the water as a sailing instructor in Boston Harbor. "Huh? You'll actually pay me to sail around all day?"
@@michaelquigley1411 living the dream !!!