7 surface drives on boat?
#14
Allergic to Nonsense
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Location: Granite Quarry, NC
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Surfacing drives do not need to be steerable nor trimable. Those are definitely surfacing propellers and the shafts may have come out behind a deeply notched transom forward of the photo area. Neither Arneson, Buzzi, nor BPM own the "surface drive" concept. This looks almost exactly like the setup one would see on an inboard hydroplane or drag boat...set up to "surface" the prop shafts.
Last edited by T2x; 01-02-2013 at 08:52 AM.
#15
What was the concept of that Rubar boat? 7 powerheads running to gearboxes then to shat drives?
#16
Olli you are right it is Rubar. If you look at the 21:14 mark of this video you can see it. Looks like the outboards come straight through and they just extend the prop shaft....
http://www.youtube.com/watch?v=aKtVKAk3SYo
http://www.youtube.com/watch?v=aKtVKAk3SYo
#17
arneson-industries.com
Offshoreonly Advertiser
Surfacing drives do not need to be steerable nor trimable. Those are definitely surfacing propellers and the shafts may have come out behind a deeply notched transom forward of the photo area. Neither Arneson, Buzzi, nor BPM own the "surface drive" concept. This looks almost exactly like the setup one would see on an inboard hydroplane or drag boat...set up to "surface" the prop shafts.
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#19
arneson-industries.com
Offshoreonly Advertiser
You've gotta come up for air eventually
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#20
arneson-industries.com
Offshoreonly Advertiser
Rich, totally different subject, but what can you tell us about the OHC engines used on the 48' JJ?
With the BBC being stuck back in 1960's for all practical design purposes, the BBC needs a good Over Head Cam head design and I saw something a while back saying you had installed engines which had quad cams.. Did they make good power? Reliable (trick question I know) were they basically BBC with different heads or a totally new engine?
With the BBC being stuck back in 1960's for all practical design purposes, the BBC needs a good Over Head Cam head design and I saw something a while back saying you had installed engines which had quad cams.. Did they make good power? Reliable (trick question I know) were they basically BBC with different heads or a totally new engine?
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