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Model Boats Website
Motors
6 Posts · 6 Followers · 0 Photos · 16 Likes
Began 8 months ago by
Able Seaman
United StatesFollow This Thread
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Latest Post 8 months ago by
Chief Petty Officer 2nd Class
Canada( Newest Posts Shown First )
📝 Motors
66 Views · 6 Likes
Country: 🇨🇦 Canada
Online: 8 days ago
Online: 8 days ago
Hi,
You can have your motors counter-rotating
( recommended ), and also go one step further and have two ESC's, one per motor, allowing you to have great maneuvering, like turning in a very tight circle, and crabbing sideways.
Just ensure you have Right and Left pitch props.
For motors, I would suggest Mabuchi type High Torque 775 motors for the Dauntless. I stock them turning 6000 rpm at 12volt.
You can have your motors counter-rotating
( recommended ), and also go one step further and have two ESC's, one per motor, allowing you to have great maneuvering, like turning in a very tight circle, and crabbing sideways.
Just ensure you have Right and Left pitch props.
For motors, I would suggest Mabuchi type High Torque 775 motors for the Dauntless. I stock them turning 6000 rpm at 12volt.
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Len1
hermank
RogerA1
Scratchbuilder
jumpugly
AlessandroSPQR
Commodore📝 Motors
62 Views · 3 Likes
Country: 🇺🇸 United States
Online: 14 seconds ago
Online: 14 seconds ago
Motor and ESC choice all depends on what kind of performance versus cost you are looking for.
As for propellers, most (but not all) boats with multiple shafts have counter rotating props. A model such as yours should do fine with counter rotating props.
Lew
Florida ⛱️, USA
As for propellers, most (but not all) boats with multiple shafts have counter rotating props. A model such as yours should do fine with counter rotating props.
Lew
Florida ⛱️, USA
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Len1
RNinMunich
jumpugly
Lew Zee (LewsModelBoats.org)
Captain📝 Motors
65 Views · 1 Like
Country: 🇺🇸 United States
Online: 6 hours ago
Online: 6 hours ago
Also like this gentleman’s approach…
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AlessandroSPQR
📝 Motors
65 Views · 3 Likes
Country: 🇺🇸 United States
Online: 6 hours ago
Online: 6 hours ago
Hey Grampus, saw this in a Dauntless build blog:
According to his calculations, using two MFA 850 Turbo motors, with 1.75" props, the Dauntless should run at approximately 22.5 MPH less slippage, which should be OK for planing speed and scale appearance.
For the ESC, I have chosen the Astro Flight 208D.
Might be a bit helpful. 😉
According to his calculations, using two MFA 850 Turbo motors, with 1.75" props, the Dauntless should run at approximately 22.5 MPH less slippage, which should be OK for planing speed and scale appearance.
For the ESC, I have chosen the Astro Flight 208D.
Might be a bit helpful. 😉
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Len1
RNinMunich
AlessandroSPQR
Rear Admiral📝 Motors
63 Views · 2 Likes
Country: 🇮🇹 Italy
Online: 2 hours ago
Online: 2 hours ago
Hi Grumpus.
I don't know the model you mentioned. Is it this? See the link at the end.
In general, propellers in boats and real ships must always counter-rotate to cancel out the whipping effect of the propeller. In fact, a single propeller, in addition to pushing the boat forward or backward, will move it slightly to the right or left, especially if it has no momentum.
Submit some characteristic of your model: length, width, weight, scale, etc. etc.
I don't know the model you mentioned. Is it this? See the link at the end.
In general, propellers in boats and real ships must always counter-rotate to cancel out the whipping effect of the propeller. In fact, a single propeller, in addition to pushing the boat forward or backward, will move it slightly to the right or left, especially if it has no momentum.
Submit some characteristic of your model: length, width, weight, scale, etc. etc.
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Len1
jumpugly
📝 Motors
66 Views · 1 Like
Country: 🇺🇸 United States
Online: 12 days ago
Online: 12 days ago
Building Dumas Dauntless. Need recommendations for what motors and Esc to put in. Also do props turn in the same direction or are they counter rotating?
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jumpugly
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