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Author Topic:   Propulse Adjustable Pitch Propellers

jimh posted 03-08-2008 11:17 AM ET (US)
Propulse of Sweden are making a series of adjustable pitch propellers. This video demonstrates their product:
http://www.youtube.com/watch?v=_H-yHcOQ6Xw
For more information see:
http://www.propulse.se
The propellers are available for distribution in the United States.
deepwater posted 03-08-2008 09:23 PM ET (US)
Jimh i saw the post earlier and thought it was neet ,,I looked at it again and see it would solve lots of prop testing and focus in on a good all around fixed blade spare prop,,any dealer could use it to set up a customers boat for the local conditions and particular loading of any boat,,
Dave Sutton posted 03-10-2008 05:00 PM ET (US)
I've used these exclusively for the last 4 years and they work as advertised. I've hit a rock spearfishing, busted off a blade, no damage to the engine (naturally), and removed the opposite blade on the water (4 blades per hub) and then came home on 2 blades. Shatterable blades are a good thing if you work around rocks, as I do, no lower unit damage potential. Adjustable pitch prop, just dial it up and down until you like it. Carry spare blades if needed. I love mine. Well worth the cost, and even that is reasonable.

Dave Sutton
JayR posted 03-10-2008 06:08 PM ET (US)
My curiosity is piqued.
Dave Sutton posted 03-10-2008 06:18 PM ET (US)
Funny thing is that I bought mine at West Marine off the shelf four years ago simply because they did not happen to have the correct prop in stock after I destroyed an aluminum one. I thought the Proprop would be just a cheap-spare and it's ended up as my favorite. I thought that this was old news.

Dave
Dave Sutton posted 03-10-2008 06:22 PM ET (US)
I actually did have an issue with one of my hubs, cannot even remember what, think I cracked it hitting a rock. In any event I emailed Sweden and in about 10 days I got a new hub. Cost? Free. Propulse is a good outfit and I am very satisfied. Did I mention I like my props? ;-)

Dave
jimh posted 03-11-2008 09:42 PM ET (US)
Dave--Keep posting. We love to hear first-hand opinions.
Tom W Clark posted 03-12-2008 12:00 AM ET (US)
A plastic propeller is an excellent choice for those who plan to drive their boats onto the rocks.
itl posted 03-12-2008 03:32 AM ET (US)
I used to own Propulse several years ago.
Didn't like it at all. Propulse really doesn't shine in any area except propeller weight (about 2lbs -> no clunc when shifting). It gives really lousy top end and nothing special with acceleration or cruise speed.
I would say, it is a nice toy if you like to play with different pitches and off course it is a good spare propeller, but if want good prop you should buy something else.
Dave Sutton posted 03-12-2008 09:34 AM ET (US)
Tom wrote:
"A plastic propeller is an excellent choice for those who plan to drive their boats onto the rocks."

Not sure if this was intended to be facetious or not: If so, just note this: Certain applications lend themselves to 'rough and ready' use. We are freediving spearfishermen, running our boats right up against jetties, submerged rocks, and granite reef structures and sometimes we need to pick up a diver in white-foam where there'sa no way to know if it's just a rip, or has a rock in it. We routinely bump bottom... and the plastic props have been of huge value to us. Not only are we saving the cost of replacement props (the far less expensive replacement blades), we also are saving our lower units. The props work 'fine' from a performance standpoint, perhaps not 'optimal' but then again... we run the boats at far less than WOT most of the time due to the rough conditions we are working in. On the occasional "wide open" run to and from a dive site (when we can run that hard) we enjoy a high 30's speed so we're not giving up much. It's all a matter of compromises.
The lack of "clunk" when shifting is of secondary advantage, but anything we can do to reduce transient noise spikes helps our fishing too. The fish do not seem to mind a steady noise (IE idling engine above them) but they DEFINATELY react to transients. I can definately see the difference in fish behaviour when the chase-boat shifts into gear while holding station above me, and there is a difference between the metal prop and the plastic one.
One man's tool is another man's toy, and vice versa.
Best,
Dave Sutton
eliotbw posted 03-13-2008 03:46 PM ET (US)
Trying a propulse. Will try different combos for cruise, econ before buying ss. Seems sensible will end up with good spare prop!
Tohsgib posted 03-14-2008 12:49 PM ET (US)
You will NOT be able to use this as a tool to buy the right prop. If you get dialed in at say 18" of pitch, an 18" ss is most likely going to be WAY different. I have one of those composit props (same material as this I believe) and the 17" 4 blade is more like a 15" SS 3 blade...horrible prop but a great spare because it weighs like a pound.
jimh posted 03-15-2008 03:09 PM ET (US)
The ultimate spare propeller for a twin engine counter-rotation set up would be a composite propeller with reversible blades that could be set as either a right-hand or a left-hand propeller.
GSH posted 03-17-2008 02:34 AM ET (US)
Jim, please correct me if I’m wrong, but you say ‘would be’ as Propulse does not make counter-rotation blades or counter-rotation propellers (or do they?).
-Seb

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Author	Topic: Propulse Adjustable Pitch Propellers
jimh	posted 03-08-2008 11:17 AM ET (US) Propulse of Sweden are making a series of adjustable pitch propellers. This video demonstrates their product: http://www.youtube.com/watch?v=_H-yHcOQ6Xw For more information see: http://www.propulse.se The propellers are available for distribution in the United States.
deepwater	posted 03-08-2008 09:23 PM ET (US) Jimh i saw the post earlier and thought it was neet ,,I looked at it again and see it would solve lots of prop testing and focus in on a good all around fixed blade spare prop,,any dealer could use it to set up a customers boat for the local conditions and particular loading of any boat,,
Dave Sutton	posted 03-10-2008 05:00 PM ET (US) I've used these exclusively for the last 4 years and they work as advertised. I've hit a rock spearfishing, busted off a blade, no damage to the engine (naturally), and removed the opposite blade on the water (4 blades per hub) and then came home on 2 blades. Shatterable blades are a good thing if you work around rocks, as I do, no lower unit damage potential. Adjustable pitch prop, just dial it up and down until you like it. Carry spare blades if needed. I love mine. Well worth the cost, and even that is reasonable. Dave Sutton
JayR	posted 03-10-2008 06:08 PM ET (US) My curiosity is piqued.
Dave Sutton	posted 03-10-2008 06:18 PM ET (US) Funny thing is that I bought mine at West Marine off the shelf four years ago simply because they did not happen to have the correct prop in stock after I destroyed an aluminum one. I thought the Proprop would be just a cheap-spare and it's ended up as my favorite. I thought that this was old news. Dave
Dave Sutton	posted 03-10-2008 06:22 PM ET (US) I actually did have an issue with one of my hubs, cannot even remember what, think I cracked it hitting a rock. In any event I emailed Sweden and in about 10 days I got a new hub. Cost? Free. Propulse is a good outfit and I am very satisfied. Did I mention I like my props? ;-) Dave
jimh	posted 03-11-2008 09:42 PM ET (US) Dave--Keep posting. We love to hear first-hand opinions.
Tom W Clark	posted 03-12-2008 12:00 AM ET (US) A plastic propeller is an excellent choice for those who plan to drive their boats onto the rocks.
itl	posted 03-12-2008 03:32 AM ET (US) I used to own Propulse several years ago. Didn't like it at all. Propulse really doesn't shine in any area except propeller weight (about 2lbs -> no clunc when shifting). It gives really lousy top end and nothing special with acceleration or cruise speed. I would say, it is a nice toy if you like to play with different pitches and off course it is a good spare propeller, but if want good prop you should buy something else.
Dave Sutton	posted 03-12-2008 09:34 AM ET (US) Tom wrote: "A plastic propeller is an excellent choice for those who plan to drive their boats onto the rocks." Not sure if this was intended to be facetious or not: If so, just note this: Certain applications lend themselves to 'rough and ready' use. We are freediving spearfishermen, running our boats right up against jetties, submerged rocks, and granite reef structures and sometimes we need to pick up a diver in white-foam where there'sa no way to know if it's just a rip, or has a rock in it. We routinely bump bottom... and the plastic props have been of huge value to us. Not only are we saving the cost of replacement props (the far less expensive replacement blades), we also are saving our lower units. The props work 'fine' from a performance standpoint, perhaps not 'optimal' but then again... we run the boats at far less than WOT most of the time due to the rough conditions we are working in. On the occasional "wide open" run to and from a dive site (when we can run that hard) we enjoy a high 30's speed so we're not giving up much. It's all a matter of compromises. The lack of "clunk" when shifting is of secondary advantage, but anything we can do to reduce transient noise spikes helps our fishing too. The fish do not seem to mind a steady noise (IE idling engine above them) but they DEFINATELY react to transients. I can definately see the difference in fish behaviour when the chase-boat shifts into gear while holding station above me, and there is a difference between the metal prop and the plastic one. One man's tool is another man's toy, and vice versa. Best, Dave Sutton
eliotbw	posted 03-13-2008 03:46 PM ET (US) Trying a propulse. Will try different combos for cruise, econ before buying ss. Seems sensible will end up with good spare prop!
Tohsgib	posted 03-14-2008 12:49 PM ET (US) You will NOT be able to use this as a tool to buy the right prop. If you get dialed in at say 18" of pitch, an 18" ss is most likely going to be WAY different. I have one of those composit props (same material as this I believe) and the 17" 4 blade is more like a 15" SS 3 blade...horrible prop but a great spare because it weighs like a pound.
jimh	posted 03-15-2008 03:09 PM ET (US) The ultimate spare propeller for a twin engine counter-rotation set up would be a composite propeller with reversible blades that could be set as either a right-hand or a left-hand propeller.
GSH	posted 03-17-2008 02:34 AM ET (US) Jim, please correct me if I’m wrong, but you say ‘would be’ as Propulse does not make counter-rotation blades or counter-rotation propellers (or do they?). -Seb