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Old 29 January 2007, 15:59   #61
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Originally Posted by John Kennett View Post
Sure, but even good drivers get it wrong occasionally. If the consequences are likely to be severe (and we don't know if that's the case or not in this instance), then it may be a risk that's not worth taking.
John
In our research, that seems to be the biggest cause of injury on high speed boats, the movement or impact you're not anticipating. That is the beauty of the Ullman seat, it puts you in an ergonomically correct position for the body and seat to work together to minimize the harmful effects on the body.

Even when we are not anticipating an impact, we find that being on the Ullman seat makes us much better able to handle it.

Another couple of things learned. Standing or using a leaning post is very harmful to the body, so the studies say. And for a seat to be effective it must allow the body to participate and be in the correct posture.

Another interesting thought is that it's the bodys impact against the deck of the boat which is often times moving in an opposite direction to the body that is a problem. Picture your body on a downward motion as you are coming off a wave and the deck of the boat moving upwards as it rebounds from the impact with the water. In my mind I had a picture of the boat and human moving as one but I can see what they are talking about and have experienced it.
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Old 29 January 2007, 16:07   #62
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I'm such a klutz, I just realised this is Martin & Antoinette. Sorry Martin!
There i was thinking all the talk was about a rib.
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Old 29 January 2007, 16:57   #63
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now that reminds me of a story of a famous rib builders wife running down the pontoon at the SBS with his pile cushion. Shouting to him that he'd forgoten it.

I am sure Alan told me the were truck seats, is he around to confirm?
Mike Garside's boat had truck seats in which he said worked very well.

Cheers

Mark
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Old 29 January 2007, 17:00   #64
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And a claw hammer and set of steps IIRC.

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Mike Garside's boat had truck seats in which he said worked very well.

Cheers

Mark
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Old 29 January 2007, 17:20   #65
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Another couple of things learned. Standing or using a leaning post is very harmful to the body, so the studies say.
I can believe that. SHock loads straight up ur straight lock limbed body!

However the ullman is by design a jockey style seat. Jockey style seats encourage standing to cushion waves through your legs. So why have a jockey suspension seat??? I really dont get that!! Would a bucket seat not offer greater support without the temptation to stand and render that expensive shock absorber useless!??
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Old 29 January 2007, 17:24   #66
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It's kind of irrelevant - a jockey seat really isn't going to fit a Shakespeare 650.
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Old 29 January 2007, 18:43   #67
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...Even when we are not anticipating an impact, we find that being on the Ullman seat makes us much better able to handle it...
Yes, I agree with that. Humans get it wrong but the seats don't seem to.
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Old 29 January 2007, 19:05   #68
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Thanks Matt and ...cheers John!

I reckon some form of suspended bucket seat would be the solution, as Matt says an Ullman Jockey would look kinda out of place.

We need something just to soften the impact of a wake on those balmy hot summers days in the Solent (all two of them a year!).

The surgeon is very pleased with Antoinette's progress and he sees no reason why she cannot enjoy some gentle boating.

Thanks

Martin
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Old 29 January 2007, 19:15   #69
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Quote:
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I'm such a klutz, I just realised this is Martin & Antoinette.
Oh, me too!

John
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Old 29 January 2007, 19:31   #70
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I reckon some form of suspended bucket seat would be the solution,
what kind of like a hamock hanging from the A-frame?
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Old 29 January 2007, 19:34   #71
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Quote:
Originally Posted by Martin View Post
Thanks Matt and ...cheers John!

I reckon some form of suspended bucket seat would be the solution, as Matt says an Ullman Jockey would look kinda out of place.

We need something just to soften the impact of a wake on those balmy hot summers days in the Solent (all two of them a year!).

The surgeon is very pleased with Antoinette's progress and he sees no reason why she cannot enjoy some gentle boating.

Thanks

Martin
Martin if you want something that won't look out of place on you little Gin palace then string a hammock across the Cabin .

On a more serious note, I'm glad that Antoinette is getting better and hope we get to see you a little bit more this year.
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Old 30 January 2007, 04:10   #72
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Quote:
Originally Posted by gtflash View Post
I can believe that. SHock loads straight up ur straight lock limbed body!

However the ullman is by design a jockey style seat. Jockey style seats encourage standing to cushion waves through your legs. So why have a jockey suspension seat??? I really dont get that!! Would a bucket seat not offer greater support without the temptation to stand and render that expensive shock absorber useless!??
When sitting in the Ullman seat your knees are in a bent position and most of the shock is absorbed by the seat, but your legs are still used in conjunction with the seat. Stradling the seat also provides great latteral support for the tight turns and unexpected sideways motion.

The goal of a shock mitigating seat is to slow the motion of the body in relation to the boat. A bucket seat without a "shock absorber" will not reduce the sudden stopping the body will experience.
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Old 31 January 2007, 21:04   #73
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No problems John

Still not resolved the problem.

Considering trying come up with a solution that will fit into a pedestal.

If I do I'll let you all know.

Martin
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Old 05 January 2008, 21:23   #74
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Any one tried a tractor seat or lorry seat in a boat. We are rigging a rib for
RB8 and need some thing
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Old 07 January 2008, 09:39   #75
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I am aware this thread has been running a while,
I am currently making a set of stand up/flip down electric bolsters for my new build and wondered your thoughts on these (identical to the scorpion ones) http://www.mcleoddesign.com/Products/Matrix.html

I have almost completed the seating but havent made the actual base leg supports as yet and wondered if it was worth making it with a suspension of sorts or leave it with rigid legs

cheers

Ian
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Old 07 January 2008, 12:55   #76
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There is a thread about these on Boatmad now as well, more about race seats for Round Britain though!
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Old 07 January 2008, 13:44   #77
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Any one tried a tractor seat or lorry seat in a boat. We are rigging a rib for
RB8 and need some thing
Most truck seats need a compressor to provide air. Some Renault 7.5 tonne ones don't though and on these it's just the base that's suspended so you could add your own seat to it. They use the same seat bases in tractors and forklifts. They aren't damped though-just air sprung.
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Old 07 January 2008, 21:07   #78
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Quote:
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Any one tried a tractor seat or lorry seat in a boat. We are rigging a rib for
RB8 and need some thing
Some lifeboat classes use Kab seats:

http://www.kabseating.com/vehicle/pr...pid=9&appid=32

They work to a point, but have limited performance under extreme conditions they - hence the new design seats for Tamar
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Old 30 August 2017, 01:30   #79
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Realizing that a lot has changed in the last 10 years, it may still interest those in need of suspension seats that we are making high performance and more affordable suspension seating available to more people. Take a look here if you are still in need:

http://www.rib.net/forum/f43/suspens...ing-76731.html

All the best,
Dan.
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