Reply
 
Thread Tools Search this Thread
 
Old 22 September 2006, 18:21   #11
RIBnet admin team
 
Poly's Avatar
 
Country: UK - Scotland
Boat name: imposter
Make: FunYak
Length: 3m +
Engine: 2 stroke YAM 20 HP
MMSI: 235089819
Join Date: Sep 2005
Posts: 10,114
Quote:
Originally Posted by codprawn
Does look like it has great potential - would love to see some pics of it. I bet they will take the development so far and then sell out to a bigger company.
there are some pics on this thread on YBW

http://www.ybw.com/forums/showflat.p...gonew/1#UNREAD

not sure if it is the perspective but it looks like a big beast.
__________________
Poly is online now   Reply With Quote
Old 22 September 2006, 20:07   #12
RIBnet admin team
 
Nos4r2's Avatar
 
Country: UK - England
Town: The wilds of Wiltshire
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 235090687/235055163
Join Date: Jul 2005
Posts: 12,645
RIBase
Quote:
Originally Posted by John Kennett
Which RIB? The one in the videos is a Ribcraft.

John
The one on the boatshow programme wasn't the one in vids on the site-it had orange toobs as far as I remember.

This is a fascinating piece of engineering. I'd be very interested to see a slowmo of what the blades do while moving.
__________________
Need spares,consoles,consumables,hire,training or even a new boat?

Please click HERE and HERE and support our Trade Members.

Join up as a Trade member or Supporter HERE
Nos4r2 is offline   Reply With Quote
Old 22 September 2006, 21:34   #13
Member
 
Country: UK - Wales
Town: swansea
Boat name: Too Blue
Make: BLANK
Length: 8m +
Engine: Suzuki DT225
Join Date: Mar 2004
Posts: 12,791
Quote:
Originally Posted by Polwart
there are some pics on this thread on YBW

http://www.ybw.com/forums/showflat.p...gonew/1#UNREAD

not sure if it is the perspective but it looks like a big beast.
Thanks for finding that - fascinating but looks way too complicated to me. The hub also looks rather large. Don't think it will be very cheap to build.
__________________
codprawn is offline   Reply With Quote
Old 23 September 2006, 02:00   #14
Administrator
 
John Kennett's Avatar
 
Country: UK - England
Town: Brighton
Length: 3m +
Join Date: May 2000
Posts: 6,829
Quote:
Originally Posted by codprawn
Don't think it will be very cheap to build.
The marketing man I spoke to on their stand was adamant that it would retail for a price comparabe to a sterndrive. Time will tell!

John
__________________
John Kennett is offline   Reply With Quote
Old 23 September 2006, 06:44   #15
Member
 
Country: Other
Town: Stanley, Falkland Is
Boat name: Seawolf
Make: Osprey Vipermax 5.8
Length: 5m +
Engine: Etec 150
Join Date: Mar 2006
Posts: 3,688
Interesting, sounds odd on the videos too, like a cross between a Harrier jumpjet and a blender

Could be expensive if you start chewing on rocks too
__________________
BogMonster is offline   Reply With Quote
Old 23 September 2006, 10:38   #16
RIBnet admin team
 
Nos4r2's Avatar
 
Country: UK - England
Town: The wilds of Wiltshire
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 235090687/235055163
Join Date: Jul 2005
Posts: 12,645
RIBase
Quote:
Originally Posted by John Kennett
The marketing man I spoke to on their stand was adamant that it would retail for a price comparabe to a sterndrive. Time will tell!

John
That suggests to me that either:-

Sterndrives are made at an indecent profit,

They lied to the marketing man-or he's a liar.

Or they aren't charging enough for it.

It'd be nice if it was the top one.
__________________
Need spares,consoles,consumables,hire,training or even a new boat?

Please click HERE and HERE and support our Trade Members.

Join up as a Trade member or Supporter HERE
Nos4r2 is offline   Reply With Quote
Old 23 September 2006, 13:49   #17
Member
 
Country: UK - Wales
Town: Milford Haven
Boat name: Various
Make: Commercial
Length: 10m +
Engine: Screw / Voith / Jets
Join Date: Sep 2002
Posts: 791
Send a message via MSN to Alex Brown
This thing seems to give similar movement results to the Voith Schneider Propellor (variable pitch in any direction instantly) system, but in a different way. I wonder if they'd scale it up for the likes of tugboats with a high bollard pull as opposed to speed as the main output?

I could never see a VSP on a speedboat somehow, since there isn't one that spins fast enough (and they're not small), but for water efficiency, it's meant to be pretty good.

-Alex
__________________
Flickr Photos
Youtube Videos
Alex Brown is offline   Reply With Quote
Old 23 September 2006, 14:29   #18
Administrator
 
John Kennett's Avatar
 
Country: UK - England
Town: Brighton
Length: 3m +
Join Date: May 2000
Posts: 6,829
Quote:
Originally Posted by Nos4r2
That suggests to me that either:-

Sterndrives are made at an indecent profit,

They lied to the marketing man-or he's a liar.

Or they aren't charging enough for it.

It'd be nice if it was the top one.
His argument was that there are actually fewer moving parts than in a sterndrive, no gearbox etc, which will keep the cost down.

I would guess that they are more likely to make substantial long-term profits if they can price it to sell in large volumes. If it really can compete pricewise in the sterndrive market, and it works reliably, then it could really challenge the status quo.

John

John
__________________
John Kennett is offline   Reply With Quote
Old 23 September 2006, 14:32   #19
Administrator
 
John Kennett's Avatar
 
Country: UK - England
Town: Brighton
Length: 3m +
Join Date: May 2000
Posts: 6,829
Quote:
Originally Posted by Alex Brown
I wonder if they'd scale it up for the likes of tugboats with a high bollard pull as opposed to speed as the main output?
There are apparently several sizes either in production or planned, ranging from something like 60hp to 1000hp.

The combination of manoueverability and efficiency should make it a winner in a very wide range of applications. Assuming the cost and reliability turn out to be OK of course . . .

John
__________________
John Kennett is offline   Reply With Quote
Old 24 September 2006, 03:13   #20
RIBnet admin team
 
Nos4r2's Avatar
 
Country: UK - England
Town: The wilds of Wiltshire
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 235090687/235055163
Join Date: Jul 2005
Posts: 12,645
RIBase
Quote:
Originally Posted by John Kennett
His argument was that there are actually fewer moving parts than in a sterndrive, no gearbox etc, which will keep the cost down.
That's interesting. That suggests to me (if he knows what he's talking about) that inside the bellhousing is just a couple of gears or a UJ and everything else that goes on is inside the hub.
I think it's probably arguable as to the number of moving parts though looking at the number of blades and their movement-but saying that they'll all be the same part that can be mass produced.

Quote:
Originally Posted by John Kennett
I would guess that they are more likely to make substantial long-term profits if they can price it to sell in large volumes. If it really can compete pricewise in the sterndrive market, and it works reliably, then it could really challenge the status quo.

John

John
It'd be nice if it did. The only market I can't see it impacting on is fishing-those blades would scare the crap out of anything close by.
__________________
Need spares,consoles,consumables,hire,training or even a new boat?

Please click HERE and HERE and support our Trade Members.

Join up as a Trade member or Supporter HERE
Nos4r2 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 10:24.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.