Bull 7000 Sports boat

William_H

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I spent a bit of time last night watching /helping a guy launch his Bull 7000 at our club. It was a glorious night for a wander. bull 7000 sailboat - Google Search
Our club are hosting an annual Rumble in the Reach a series of races for sports boats (miss guided missiles) set up for spectator advantage from the club balcony and large prize money.
This guy had towed his boat 400km from Albany for the event. 3 other boats (Vipers) also came from Albany.
Now I was impressed by a few details on this trailer boat. The first was the design of the trailer which has gaps/deviations in the cross members to permit the hull to be floated onto the trailer with a large bulb on the bottom of the vertically dropping keel. The design was not really so good in that boat had to be floated onto the trailer. My little boat with vertically dropping keel has a flush hull with keel up and can be winched onto the trailer over rollers .
The boat has a bow sprit for huge assy kite. The bow sprit is however able to be turned by about 40 degrees to windward and is controlled by lines via large (ugly) GRP horns sticking out each side a little way back from the bow. You can see them in the pictures.
However the part I really liked was the outboard motor bracket. (with stowage). Imagine an ordinary transom mount bracket which can lift up and actually roll over the bottom of a transom cut out and swing far enough forward to lay the motor into a dedicated engine locker. The hinge must be well in from the transom. A cover hinges at the front and extends to cover the transom cut out. I wish I had photos as it was very elegant. The motor can be lifted and stowed without being removed from the bracket. You can just see the cut out shape in the transom on one photo.
Anyway hoping for forecast strong winds this afternoon for some really exciting viewing. (show us your keel is the cry) ol'will
 
The swivelling bowsprit design never caught on. More racy sportsboats generate enough apparent wind to get decent angles from a central stick. You only need "help" getting angles if you are a bit heavy.

While there was sense in the idea, it was always considered ugly, unfashionable, and also outcompeted in UK by the Hunter 707 with a strong class and very user-friendly symmetric kite arrangement.

More recently, asymmetric sail design has improved vastly so you can run quite deep and effectively by easing tackline and letting the kite come to windward.
 
The swivelling bowsprit design never caught on. More racy sportsboats generate enough apparent wind to get decent angles from a central stick. You only need "help" getting angles if you are a bit heavy.

While there was sense in the idea, it was always considered ugly, unfashionable, and also outcompeted in UK by the Hunter 707 with a strong class and very user-friendly symmetric kite arrangement.

More recently, asymmetric sail design has improved vastly so you can run quite deep and effectively by easing tackline and letting the kite come to windward.
I spent a bit of time last night watching /helping a guy launch his Bull 7000 at our club. It was a glorious night for a wander. bull 7000 sailboat - Google Search
Our club are hosting an annual Rumble in the Reach a series of races for sports boats (miss guided missiles) set up for spectator advantage from the club balcony and large prize money.
This guy had towed his boat 400km from Albany for the event. 3 other boats (Vipers) also came from Albany.
Now I was impressed by a few details on this trailer boat. The first was the design of the trailer which has gaps/deviations in the cross members to permit the hull to be floated onto the trailer with a large bulb on the bottom of the vertically dropping keel. The design was not really so good in that boat had to be floated onto the trailer. My little boat with vertically dropping keel has a flush hull with keel up and can be winched onto the trailer over rollers .
The boat has a bow sprit for huge assy kite. The bow sprit is however able to be turned by about 40 degrees to windward and is controlled by lines via large (ugly) GRP horns sticking out each side a little way back from the bow. You can see them in the pictures.
However the part I really liked was the outboard motor bracket. (with stowage). Imagine an ordinary transom mount bracket which can lift up and actually roll over the bottom of a transom cut out and swing far enough forward to lay the motor into a dedicated engine locker. The hinge must be well in from the transom. A cover hinges at the front and extends to cover the transom cut out. I wish I had photos as it was very elegant. The motor can be lifted and stowed without being removed from the bracket. You can just see the cut out shape in the transom on one photo.
Anyway hoping for forecast strong winds this afternoon for some really exciting viewing. (show us your keel is the cry) ol'will
An abiding memory of the Bull 7000 was from Burnham Week in the 1990s. We were sailing our Stella and a friend had a Bull. The sports boat fleet included Bulls, Cork 1720s , 707s, started 10 minutes after us. With a strong quartering wind, they soon came past screaming "yeehah!" A hundred metres in front, they broached and capsized, they all had a swim and we trundled past. This happened three times before the turn when we were just ahead [briefly]. A bit like hare and tortoise. It looked great fun but not for us grown ups.
 
The swivelling bowsprit design never caught on. More racy sportsboats generate enough apparent wind to get decent angles from a central stick. You only need "help" getting angles if you are a bit heavy.

While there was sense in the idea, it was always considered ugly, unfashionable, and also outcompeted in UK by the Hunter 707 with a strong class and very user-friendly symmetric kite arrangement.

More recently, asymmetric sail design has improved vastly so you can run quite deep and effectively by easing tackline and letting the kite come to windward.
A couple of the more successful asy dinghies had swiveling bowsprits, the RS400 and the Laser 4000. It's a big help in sailing lower in non-planing conditions. I think the PY of those boats compared to similar boats with 'fixed' sprits might suggest there is some merit in it? I think it's fair to sa those boats were better all-round performers than other asy boats, until you get to the seriously powerful machines like RS800s, Boss, I14....
 
We had our regatta 3 short 45 min races. The vipers really did well. Viper 640 One Design Sportboat | International Class Association
As suspected there was a fair bit of carnage. 18 started in first race just 12 finished th last race. Lots of wipeouts. Indeed a prize for the best wipeout. One Viper seemed to be on it's side for 2 minutes or more. Another SB20 SB20 - Wikipedia lost 2 crew overboard and left the skipper trying to control the boat. Support boat picked em up and delivered them back to the skipper who abandoned that race but went ahead in the next race. (no sympathy for the wet crew). My new friend with the Bull 7000 did not do really well against the smaller sporty boats. I bet he was the only one with bunks and a cabin. Interesting observation that all these high performance boats have quite small chord keels. It really shows when they slow down taking or a wipeout. The boats just seem to go sideways until they get speed on. The other thing is that while it is difficult as an observer I really think their obsession with down wind tacking seems to take them way off course. I would be much more inclined to head for the mark. Anyway till next year......
Mean while ol'will will be out there again tomorrow. Some think racing a fools game but I confess I probably would not use my boat if it were not for Sunday afternoon racing. Each to their own poison. ol'will in the antipodes
 
Wasn't aware laser 4k had a swivelling bowsprit.

The RS400 is a good comparator. Interesting to ask a good 400 sailor in what wind range they actually use pole rotation.
 
Wasn't aware laser 4k had a swivelling bowsprit.

The RS400 is a good comparator. Interesting to ask a good 400 sailor in what wind range they actually use pole rotation.
I'm told that, if the object is to sail as low as possible, the pole would always be rotated, except perhaps when it's really windy when a) it's hard to rotate the pole as the tackle isn't powerful and b) one less thing to do in a gybe is a definite advantage. Also maybe sometimes in waves when you may wish to sail high at times.
The 400 kite is not huge, and I suppose its cut is a compromise for reach as well as gybing down the runs. The angle the pole moves through is not huge either, +/- 15 degrees?
I believe mini-transat boats had poles/sprits that moved further? and there was a dinghy called the Alto which could angle its pole a long way, this was probably influenced by people wanting to sail downwind in narrow channels?
I think on a displacement boat or anything that isn't going to plane in less than half a gale, the system has advantages, but structural issues might be interesting in a bigger boat?
 
Hello all,
Looking to get hold of a Bull 7000 in the UK. Does anyone know of one for sale/shortly for sale. Happy for an end of season purchase.
 
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