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I’ve got an O’Day 30’ with a Thunderstruck 10K motor, 2:1 reduction and 4 AGM batteries. ?I’ve got the original 16” pitch 9, 2 blade prop that was powered by a 16HP Universal when the boat was built. I’m convinced there must be something more efficient. I can’t even maintain a course into a 15mph wind. ?I’m with Jeff looking for suggestions
tom@... 850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
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I have Motenergy 10 kW motors from Thunderstruck on my 40’ 23,000# catamaran. My max speed is 6.3 knots in a calm ?continuous max speed is 6 knots at about 3/4 power ?
I assume your motor is 48v? What is the max RPM? Mine turns 2,400 RPM. Based on prior sea trials I decided a max prop RPM should be 800 RPM. Therefore I installed a 3:1 reduction. I have 18” diameter X 14” pitch 4 blade props.
if your motor turns 4,800 RPM I’d suggest a 3:1 reduction and a 3 or 4 blade prop close to 18” diameter. Your 2-blade just doesn’t have the surface area to get the maximum power of your motor to the water.?
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Part of the problem with heading into a 15 knot wind with gusts...? ?First off it's a sailboat, they get blown around while motoring.? Secondly, you just don't have enough headway.? Unlike our ICE counterparts you're in a boat that utilizes an electric drive so like all of us, you're light on the throttle in order to extend range. Ask me how I know this :)
Prop, on my 28', currently running a 4 bladed 12x12.5 meant for a wakeboard boat. I started out with a 14x10 3 bladed. Imo, get rid of that 2 bladed prop.
On Sat, Mar 7, 2020, 5:31 PM < tom@...> wrote: I’ve got an O’Day 30’ with a Thunderstruck 10K motor, 2:1 reduction and 4 AGM batteries.? I’ve got the original 16” pitch 9, 2 blade prop that was powered by a 16HP Universal when the boat was built. I’m convinced there must be something more efficient. I can’t even maintain a course into a 15mph wind. ?I’m with Jeff looking for suggestions
tom@...850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
|
That sounds like a reasonable size, pitch and blade number. Any idea where I might find such a right hand prop with a 1” shaft?
tom@... 850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
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On Mar 7, 2020, at 18:32, rjtrane via Groups.Io <rjtrane@...> wrote:
? I have Motenergy 10 kW motors from Thunderstruck on my 40’ 23,000# catamaran. My max speed is 6.3 knots in a calm ?continuous max speed is 6 knots at about 3/4 power ?
I assume your motor is 48v? What is the max RPM? Mine turns 2,400 RPM. Based on prior sea trials I decided a max prop RPM should be 800 RPM. Therefore I installed a 3:1 reduction. I have 18” diameter X 14” pitch 4 blade props.
if your motor turns 4,800 RPM I’d suggest a 3:1 reduction and a 3 or 4 blade prop close to 18” diameter. Your 2-blade just doesn’t have the surface area to get the maximum power of your motor to the water.?
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I would give Valley Propeller in California a call. I forget the gentleman's name but just tell them you have an electric boat & they'll hook you up with the right person. They've consulted on many conversions, I don't think you can wrong.
On Sat, Mar 7, 2020, 8:49 PM < tom@...> wrote: That sounds like a reasonable size, pitch and blade number. Any idea where I might find such a right hand prop with a 1” shaft?
tom@...850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
? I have Motenergy 10 kW motors from Thunderstruck on my 40’ 23,000# catamaran. My max speed is 6.3 knots in a calm ?continuous max speed is 6 knots at about 3/4 power ?
I assume your motor is 48v? What is the max RPM? Mine turns 2,400 RPM. Based on prior sea trials I decided a max prop RPM should be 800 RPM. Therefore I installed a 3:1 reduction. I have 18” diameter X 14” pitch 4 blade props.
if your motor turns 4,800 RPM I’d suggest a 3:1 reduction and a 3 or 4 blade prop close to 18” diameter. Your 2-blade just doesn’t have the surface area to get the maximum power of your motor to the water.?
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On this subject I think I’m about to pull the trigger on a prop. ?I have an email out to the prop guys in California Bob mentioned to see what they say. ?But here’s my thinking...
I have only been on two trips that had overnight sails. ?On both of them I picked up crab traps. ?I used to have a full keel monohull and never suffered such a thing. ?Now I realize everyone’s pain. ?I seriously want to bet a folding prop. ?Reading some reviews it looks like Flexofold is the best folding prop out there. ?My current prop is a two blade 18”. ?Not sure of the pitch. ?I plan on moving to the 3:1 reduction from my current 2:1.
The highest pitch flexofold offers is 16 for the 18”. ?It’s expensive for sure but slipping by the crab traps would be much more desirable. ?Questions are whether the pitch is enough and and will the 3:1 work well with the 18” prop.
Motor is the Thunderstruck 12kw 48v The current 3 kt performance has to go.
Larry
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On Mar 7, 2020, at 8:32 PM, Bob Jennings <heatnh@...> wrote:
? Part of the problem with heading into a 15 knot wind with gusts...? ?First off it's a sailboat, they get blown around while motoring.? Secondly, you just don't have enough headway.? Unlike our ICE counterparts you're in a boat that utilizes an electric drive so like all of us, you're light on the throttle in order to extend range. Ask me how I know this :)
Prop, on my 28', currently running a 4 bladed 12x12.5 meant for a wakeboard boat. I started out with a 14x10 3 bladed. Imo, get rid of that 2 bladed prop. On Sat, Mar 7, 2020, 5:31 PM < tom@...> wrote: I’ve got an O’Day 30’ with a Thunderstruck 10K motor, 2:1 reduction and 4 AGM batteries.? I’ve got the original 16” pitch 9, 2 blade prop that was powered by a 16HP Universal when the boat was built. I’m convinced there must be something more efficient. I can’t even maintain a course into a 15mph wind. ?I’m with Jeff looking for suggestions
tom@...850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
|
I got my prop from Olympic Propeller Co right here in Anacortes.?
On this subject I think I’m about to pull the trigger on a prop.? I have an email out to the prop guys in California Bob mentioned to see what they say.? But here’s my thinking...
I have only been on two trips that had overnight sails.? On both of them I picked up crab traps.? I used to have a full keel monohull and never suffered such a thing.? Now I realize everyone’s pain.? I seriously want to bet a folding prop.? Reading some reviews it looks like Flexofold is the best folding prop out there.? My current prop is a two blade 18”.? Not sure of the pitch.? I plan on moving to the 3:1 reduction from my current 2:1.
The highest pitch flexofold offers is 16 for the 18”.? It’s expensive for sure but slipping by the crab traps would be much more desirable.? Questions are whether the pitch is enough and and will the 3:1 work well with the 18” prop.
Motor is the Thunderstruck 12kw 48v The current 3 kt performance has to go.
Larry On Mar 7, 2020, at 8:32 PM, Bob Jennings <heatnh@...> wrote:
? Part of the problem with heading into a 15 knot wind with gusts...? ?First off it's a sailboat, they get blown around while motoring.? Secondly, you just don't have enough headway.? Unlike our ICE counterparts you're in a boat that utilizes an electric drive so like all of us, you're light on the throttle in order to extend range. Ask me how I know this :)
Prop, on my 28', currently running a 4 bladed 12x12.5 meant for a wakeboard boat. I started out with a 14x10 3 bladed. Imo, get rid of that 2 bladed prop. On Sat, Mar 7, 2020, 5:31 PM < tom@...> wrote: I’ve got an O’Day 30’ with a Thunderstruck 10K motor, 2:1 reduction and 4 AGM batteries.? I’ve got the original 16” pitch 9, 2 blade prop that was powered by a 16HP Universal when the boat was built. I’m convinced there must be something more efficient. I can’t even maintain a course into a 15mph wind. ?I’m with Jeff looking for suggestions
tom@...850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
|
What is your setup and what did you get from them?
Thanks
I got my prop from Olympic Propeller Co right here in Anacortes.?
On this subject I think I’m about to pull the trigger on a prop.? I have an email out to the prop guys in California Bob mentioned to see what they say.? But here’s my thinking...
I have only been on two trips that had overnight sails.? On both of them I picked up crab traps.? I used to have a full keel monohull and never suffered such a thing.? Now I realize everyone’s pain.? I seriously want to bet a folding prop.? Reading some reviews it looks like Flexofold is the best folding prop out there.? My current prop is a two blade 18”.? Not sure of the pitch.? I plan on moving to the 3:1 reduction from my current 2:1.
The highest pitch flexofold offers is 16 for the 18”.? It’s expensive for sure but slipping by the crab traps would be much more desirable.? Questions are whether the pitch is enough and and will the 3:1 work well with the 18” prop.
Motor is the Thunderstruck 12kw 48v The current 3 kt performance has to go.
Larry On Mar 7, 2020, at 8:32 PM, Bob Jennings <heatnh@...> wrote:
? Part of the problem with heading into a 15 knot wind with gusts...? ?First off it's a sailboat, they get blown around while motoring.? Secondly, you just don't have enough headway.? Unlike our ICE counterparts you're in a boat that utilizes an electric drive so like all of us, you're light on the throttle in order to extend range. Ask me how I know this :)
Prop, on my 28', currently running a 4 bladed 12x12.5 meant for a wakeboard boat. I started out with a 14x10 3 bladed. Imo, get rid of that 2 bladed prop. On Sat, Mar 7, 2020, 5:31 PM < tom@...> wrote: I’ve got an O’Day 30’ with a Thunderstruck 10K motor, 2:1 reduction and 4 AGM batteries.? I’ve got the original 16” pitch 9, 2 blade prop that was powered by a 16HP Universal when the boat was built. I’m convinced there must be something more efficient. I can’t even maintain a course into a 15mph wind. ?I’m with Jeff looking for suggestions
tom@...850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
-- Larry Brown S/V Trident Palm Harbor, FL ~~~~~~~~~~~~~~~~~_/)~~~~~~~~ ? ? ~ ? ? ~ ? ? ? ? ?~~ ? ? ? ? ? ~ ~ ? ? ? ? ? ~~_/) ? ?~ ? ? ?~ ~ ? ? ? ?~ ? ? ?~ ? ? ? ? ? ? ? ? ?_/) ? ? ? ? ?~
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? I bought a prop from Ryan at Valley prop in California to replace the original two bladed prop from the diesel on my 1980 O’Day 30’. The new prop is a 15” 9.5 pitch three blade. I’ve got the Thunderstruck 10KW kit with 4 12 volt AGM batteries. ?The new prop is like night and day in terms of propulsion efficiency. ?I thank whoever told me about Valley Prop and recommend them.
tom@... 850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
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On May 18, 2020, at 07:07, Larry Brown <elcapitanbrown@...> wrote:
? On this subject I think I’m about to pull the trigger on a prop. ?I have an email out to the prop guys in California Bob mentioned to see what they say. ?But here’s my thinking...
I have only been on two trips that had overnight sails. ?On both of them I picked up crab traps. ?I used to have a full keel monohull and never suffered such a thing. ?Now I realize everyone’s pain. ?I seriously want to bet a folding prop. ?Reading some reviews it looks like Flexofold is the best folding prop out there. ?My current prop is a two blade 18”. ?Not sure of the pitch. ?I plan on moving to the 3:1 reduction from my current 2:1.
The highest pitch flexofold offers is 16 for the 18”. ?It’s expensive for sure but slipping by the crab traps would be much more desirable. ?Questions are whether the pitch is enough and and will the 3:1 work well with the 18” prop.
Motor is the Thunderstruck 12kw 48v The current 3 kt performance has to go.
Larry On Mar 7, 2020, at 8:32 PM, Bob Jennings <heatnh@...> wrote:
? Part of the problem with heading into a 15 knot wind with gusts...? ?First off it's a sailboat, they get blown around while motoring.? Secondly, you just don't have enough headway.? Unlike our ICE counterparts you're in a boat that utilizes an electric drive so like all of us, you're light on the throttle in order to extend range. Ask me how I know this :)
Prop, on my 28', currently running a 4 bladed 12x12.5 meant for a wakeboard boat. I started out with a 14x10 3 bladed. Imo, get rid of that 2 bladed prop. On Sat, Mar 7, 2020, 5:31 PM < tom@...> wrote: I’ve got an O’Day 30’ with a Thunderstruck 10K motor, 2:1 reduction and 4 AGM batteries.? I’ve got the original 16” pitch 9, 2 blade prop that was powered by a 16HP Universal when the boat was built. I’m convinced there must be something more efficient. I can’t even maintain a course into a 15mph wind. ?I’m with Jeff looking for suggestions
tom@...850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
|
Tom, thanks for sharing. I’ve been thinking we need to get a new prop too. We have a 1979, 27 ‘ hunter about 7,000 displacement. ?Spring break 2019 we went electric using ?the 10 kw Motor from thunder struck... I feel our big gal is a little wimpy when we’re backing out of our slip and fighting a little wind..(we jokingly call it the harbor parade). ?? All that said we do love being electric... it’s been very reliable and gets us where we need and that makes me very happy. ?I plan to talk to your prop guy.
Theresa & Jay from Texas
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On May 18, 2020, at 1:54 PM, tom@... wrote:
? ? I bought a prop from Ryan at Valley prop in California to replace the original two bladed prop from the diesel on my 1980 O’Day 30’. The new prop is a 15” 9.5 pitch three blade. I’ve got the Thunderstruck 10KW kit with 4 12 volt AGM batteries. ?The new prop is like night and day in terms of propulsion efficiency. ?I thank whoever told me about Valley Prop and recommend them.
tom@... 850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
On May 18, 2020, at 07:07, Larry Brown <elcapitanbrown@...> wrote:
? On this subject I think I’m about to pull the trigger on a prop. ?I have an email out to the prop guys in California Bob mentioned to see what they say. ?But here’s my thinking...
I have only been on two trips that had overnight sails. ?On both of them I picked up crab traps. ?I used to have a full keel monohull and never suffered such a thing. ?Now I realize everyone’s pain. ?I seriously want to bet a folding prop. ?Reading some reviews it looks like Flexofold is the best folding prop out there. ?My current prop is a two blade 18”. ?Not sure of the pitch. ?I plan on moving to the 3:1 reduction from my current 2:1.
The highest pitch flexofold offers is 16 for the 18”. ?It’s expensive for sure but slipping by the crab traps would be much more desirable. ?Questions are whether the pitch is enough and and will the 3:1 work well with the 18” prop.
Motor is the Thunderstruck 12kw 48v The current 3 kt performance has to go.
Larry On Mar 7, 2020, at 8:32 PM, Bob Jennings <heatnh@...> wrote:
? Part of the problem with heading into a 15 knot wind with gusts...? ?First off it's a sailboat, they get blown around while motoring.? Secondly, you just don't have enough headway.? Unlike our ICE counterparts you're in a boat that utilizes an electric drive so like all of us, you're light on the throttle in order to extend range. Ask me how I know this :)
Prop, on my 28', currently running a 4 bladed 12x12.5 meant for a wakeboard boat. I started out with a 14x10 3 bladed. Imo, get rid of that 2 bladed prop. On Sat, Mar 7, 2020, 5:31 PM < tom@...> wrote: I’ve got an O’Day 30’ with a Thunderstruck 10K motor, 2:1 reduction and 4 AGM batteries.? I’ve got the original 16” pitch 9, 2 blade prop that was powered by a 16HP Universal when the boat was built. I’m convinced there must be something more efficient. I can’t even maintain a course into a 15mph wind. ?I’m with Jeff looking for suggestions
tom@...850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
|
I'm curious about what you have/had for prop size.? I've got a
Catalina 27 that I'm converting to the 10KW kit from Thunderstruck
and yesterday I pulled the boat for bottom work and took a look at
the current prop from a Atomic4 setup.? Prop is a 2 blade and
looks to be about 10 inches.? Its in sad shape and I'm considering
replacing it.
John
On 5/18/2020 11:42 PM, theresa Montya
wrote:
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Tom, thanks for sharing. I’ve been thinking we need to get a new
prop too. We have a 1979, 27 ‘ hunter about 7,000 displacement.
?Spring break 2019 we went electric using ?the 10 kw Motor from
thunder struck... I feel our big gal is a little wimpy when we’re
backing out of our slip and fighting a little wind..(we jokingly
call it the harbor parade). ??
All that said we do love being electric... it’s been very
reliable and gets us where we need and that makes me very happy.
?I plan to talk to your prop guy.
Theresa & Jay from Texas
On May 18, 2020, at 1:54 PM,
tom@... wrote:
?
?
I bought a prop from Ryan at Valley prop in California to
replace the original two bladed prop from the diesel on my
1980 O’Day 30’. The new prop is a 15” 9.5 pitch three
blade. I’ve got the Thunderstruck 10KW kit with 4 12 volt
AGM batteries. ?The new prop is like night and day in
terms of propulsion efficiency. ?I thank whoever told me
about Valley Prop and recommend them.
tom@...
850 259-8600
Thos. Stein Inc.?
78B Ricker Ave.?
Santa Rosa Beach, FL 32459
Florida underground
utility contractor license RU0058046
Florida plumbing contractor license RF0057995
?
On this subject I think I’m about to pull the trigger
on a prop. ?I have an email out to the prop guys in
California Bob mentioned to see what they say. ?But
here’s my thinking...
I have only been on two trips that had overnight
sails. ?On both of them I picked up crab traps. ?I
used to have a full keel monohull and never suffered
such a thing. ?Now I realize everyone’s pain. ?I
seriously want to bet a folding prop. ?Reading some
reviews it looks like Flexofold is the best folding
prop out there. ?My current prop is a two blade 18”.
?Not sure of the pitch. ?I plan on moving to the 3:1
reduction from my current 2:1.
The highest pitch flexofold offers is 16 for the
18”. ?It’s expensive for sure but slipping by the
crab traps would be much more desirable. ?Questions
are whether the pitch is enough and and will the 3:1
work well with the 18” prop.
Motor is the Thunderstruck 12kw 48v
The current 3 kt performance has to
go.
Larry
On Mar 7, 2020, at 8:32
PM, Bob Jennings <heatnh@...> wrote:
?
Part of the problem with heading
into a 15 knot wind with gusts...? ?First off
it's a sailboat, they get blown around while
motoring.?
Secondly, you just don't have
enough headway.? Unlike our ICE counterparts
you're in a boat that utilizes an electric
drive so like all of us, you're light on the
throttle in order to extend range.
Ask me how I know this :)
Prop, on my 28', currently
running a 4 bladed 12x12.5 meant for a
wakeboard boat. I started out with a 14x10 3
bladed. Imo, get rid of that 2 bladed prop.
On Sat, Mar
7, 2020, 5:31 PM < tom@...>
wrote:
I’ve
got an O’Day 30’ with a Thunderstruck
10K motor, 2:1 reduction and 4 AGM
batteries.? I’ve got the original 16”
pitch 9, 2 blade prop that was powered
by a 16HP Universal when the boat was
built. I’m convinced there must be
something more efficient. I can’t even
maintain a course into a 15mph wind. ?
I’m
with Jeff looking for suggestions
tom@...
850 259-8600
Thos. Stein Inc.?
78B Ricker Ave.?
Santa Rosa Beach, FL 32459
Florida
underground utility contractor
license RU0058046
Florida plumbing contractor
license RF0057995
|
(Real quick, I think that Bryan at Valley prop)
For anyone looking to match a prop for your boat, check out and there is a link for calculators.? Fill in your boat's features (Thunderstruck 10k RPM max is 2400) and 13HP.? This will get you close.? I don't know what exactly we would change on this calculation to be more of a match for the electric motor but it uses the horsepower, gear ratio and rpm (I believe) to arrive at Total available torque ft/lbs at the engine, power loss at the gear and Total horsepower at the propeller and torque ft/lbs at the propeller.? I assume they did their formula?based on a combustion engine and it does not ask that question.? It also assumes the desired speed should be achieved at 90% of the throttle in that combustion engine.??
For all you electric motor guys what are your thoughts on what the difference would be for the electric motor and how it would effect these calculations?? Electric motors are supposed to have more torque right?? Would that mean a propeller better adapted would have a 10% larger diameter for the same effect, a 5% higher pitch or the opposite?? Is it better economy in amps to spin the motor slower with more resistance or higher with less resistance or is it a wash and either way exerts the same energy?? Seems like if it's equal, slower would be less wear and tear on bearings etc.
On Tue, May 19, 2020 at 12:17 AM theresa Montya < montyakid@...> wrote: Tom, thanks for sharing. I’ve been thinking we need to get a new prop too. We have a 1979, 27 ‘ hunter about 7,000 displacement.? Spring break 2019 we went electric using ?the 10 kw Motor from thunder struck... I feel our big gal is a little wimpy when we’re backing out of our slip and fighting a little wind..(we jokingly call it the harbor parade). ?? All that said we do love being electric... it’s been very reliable and gets us where we need and that makes me very happy.? I plan to talk to your prop guy.
Theresa & Jay from Texas On May 18, 2020, at 1:54 PM, tom@... wrote:
? ?I bought a prop from Ryan at Valley prop in California to replace the original two bladed prop from the diesel on my 1980 O’Day 30’. The new prop is a 15” 9.5 pitch three blade. I’ve got the Thunderstruck 10KW kit with 4 12 volt AGM batteries.? The new prop is like night and day in terms of propulsion efficiency.? I thank whoever told me about Valley Prop and recommend them.
tom@...850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
?On this subject I think I’m about to pull the trigger on a prop.? I have an email out to the prop guys in California Bob mentioned to see what they say.? But here’s my thinking...
I have only been on two trips that had overnight sails.? On both of them I picked up crab traps.? I used to have a full keel monohull and never suffered such a thing.? Now I realize everyone’s pain.? I seriously want to bet a folding prop.? Reading some reviews it looks like Flexofold is the best folding prop out there.? My current prop is a two blade 18”.? Not sure of the pitch.? I plan on moving to the 3:1 reduction from my current 2:1.
The highest pitch flexofold offers is 16 for the 18”.? It’s expensive for sure but slipping by the crab traps would be much more desirable.? Questions are whether the pitch is enough and and will the 3:1 work well with the 18” prop.
Motor is the Thunderstruck 12kw 48v The current 3 kt performance has to go.
Larry On Mar 7, 2020, at 8:32 PM, Bob Jennings <heatnh@...> wrote:
? Part of the problem with heading into a 15 knot wind with gusts...? ?First off it's a sailboat, they get blown around while motoring.? Secondly, you just don't have enough headway.? Unlike our ICE counterparts you're in a boat that utilizes an electric drive so like all of us, you're light on the throttle in order to extend range. Ask me how I know this :)
Prop, on my 28', currently running a 4 bladed 12x12.5 meant for a wakeboard boat. I started out with a 14x10 3 bladed. Imo, get rid of that 2 bladed prop. On Sat, Mar 7, 2020, 5:31 PM < tom@...> wrote: I’ve got an O’Day 30’ with a Thunderstruck 10K motor, 2:1 reduction and 4 AGM batteries.? I’ve got the original 16” pitch 9, 2 blade prop that was powered by a 16HP Universal when the boat was built. I’m convinced there must be something more efficient. I can’t even maintain a course into a 15mph wind. ?I’m with Jeff looking for suggestions
tom@...850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
-- Larry Brown S/V Trident Palm Harbor, FL ~~~~~~~~~~~~~~~~~_/)~~~~~~~~ ? ? ~ ? ? ~ ? ? ? ? ?~~ ? ? ? ? ? ~ ~ ? ? ? ? ? ~~_/) ? ?~ ? ? ?~ ~ ? ? ? ?~ ? ? ?~ ? ? ? ? ? ? ? ? ?_/) ? ? ? ? ?~
|
Reuben Trane