View previous topic :: View next topic |
Author |
Message |
pcg
Joined: 31 Aug 2018 Posts: 406 City/Region: Sherwood
State or Province: OR
C-Dory Year: 1999
C-Dory Model: 22 Cruiser
Vessel Name: C-Quest
Photos: pcg
|
Posted: Sun Jul 14, 2019 8:58 pm Post subject: |
|
|
I've never heard of a C-Dory with a jack plate. I'd be interested to hear if anyone uses one. Are there advantages? _________________ Paul |
|
Back to top |
|
|
WeekiTiki
Joined: 12 Jun 2019 Posts: 412 City/Region: Weeki Wachee
State or Province: FL
C-Dory Year: 2003
C-Dory Model: 22 Cruiser
Vessel Name: Just Cruisin'
Photos: WeekiTiki
|
Posted: Mon Jul 15, 2019 8:48 am Post subject: |
|
|
pcg wrote: | I've never heard of a C-Dory with a jack plate. I'd be interested to hear if anyone uses one. Are there advantages? |
Here where there are shallows that are extremely rocky
I'm thinking it will work good
And I have one already so I'll be sure and post about it once it's in use _________________ Weeki Wachee
|
|
Back to top |
|
|
ssobol
Joined: 27 Oct 2012 Posts: 3373 City/Region: SW Michigan
State or Province: MI
C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: SoBELLE
Photos: SoBelle
|
Posted: Mon Jul 15, 2019 2:05 pm Post subject: |
|
|
WeekiTiki wrote: | pcg wrote: | I've never heard of a C-Dory with a jack plate. I'd be interested to hear if anyone uses one. Are there advantages? |
Here where there are shallows that are extremely rocky
I'm thinking it will work good
And I have one already so I'll be sure and post about it once it's in use |
How is this different from just tilting the motor up when in shallow water?
AFAIK, jack plates are for maximizing performance of the engine/boat combination usually used on bass boats and the like (because those guys seem to need to go as fast as possible). I'm not sure of the utility on a C-Dory even when used for fishing.
I don't need to optimize my hole shot when in shallow water. |
|
Back to top |
|
|
thataway
Joined: 02 Nov 2003 Posts: 20810 City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
|
Posted: Mon Jul 15, 2019 6:03 pm Post subject: |
|
|
There will be some trim changes, as the engine is further aft with the jack plate. Also the dynamics around the transom may slightly change.
I have never thought about one for my C Dory's, but have about the Caracal Cat--so I can vary the engine height and tunnel dynamics to avoid cavitation at various speeds. To go thru shoal water, which do only at slow displacement speeds, we just tilt the motor up--and be sure that the water intake is still submerged. _________________ Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL |
|
Back to top |
|
|
WeekiTiki
Joined: 12 Jun 2019 Posts: 412 City/Region: Weeki Wachee
State or Province: FL
C-Dory Year: 2003
C-Dory Model: 22 Cruiser
Vessel Name: Just Cruisin'
Photos: WeekiTiki
|
Posted: Mon Jul 15, 2019 6:40 pm Post subject: |
|
|
Thinking the boat will run straighter and more efficiently when
idling through the shallows with the motor at 180 degrees
vs tilted up at less of a degree
Don't know that I'll do it immediately
Have to see just how it does the way it is
So I'll know if I like the jack plate on it or not when I do try it |
|
Back to top |
|
|
WeekiTiki
Joined: 12 Jun 2019 Posts: 412 City/Region: Weeki Wachee
State or Province: FL
C-Dory Year: 2003
C-Dory Model: 22 Cruiser
Vessel Name: Just Cruisin'
Photos: WeekiTiki
|
Posted: Mon Jul 15, 2019 7:09 pm Post subject: |
|
|
...but I can see as well, all the surprised faces
when they see a cabin cruiser crossing the flats at low tide
Even if it is at idle speed |
|
Back to top |
|
|
Sea Wolf
Joined: 01 Nov 2003 Posts: 8650 City/Region: Redding
State or Province: CA
C-Dory Year: 1987
C-Dory Model: 22 Cruiser
Vessel Name: Sea Wolf
Photos: Sea Wolf
|
Posted: Mon Jul 15, 2019 7:38 pm Post subject: |
|
|
ssobol wrote: | WeekiTiki wrote: | pcg wrote: | I've never heard of a C-Dory with a jack plate. I'd be interested to hear if anyone uses one. Are there advantages? |
Here where there are shallows that are extremely rocky
I'm thinking it will work good
And I have one already so I'll be sure and post about it once it's in use |
How is this different from just tilting the motor up when in shallow water?
AFAIK, jack plates are for maximizing performance of the engine/boat combination usually used on bass boats and the like (because those guys seem to need to go as fast as possible). I'm not sure of the utility on a C-Dory even when used for fishing.
I don't need to optimize my hole shot when in shallow water. |
Ans.: The jack plate moves the whole motor mount up and down to change shaft depth, thus when the regular motor trim is used to tilt back for shallow water drive, the base of the motor mount can be higher by the amount the jack plate can raise the motor above normal un-adjusted height on the transom. The propeller and skeg will be higher by this amount, whether tilted straight down or back in the shallow water drive position. The jack plate can raise the motor and lower it as much as 6 inches or more.
Some illustration:
https://www.youtube.com/watch?v=62DwTnrU6FE
Joe. _________________ Sea Wolf, C-Brat #31
Lake Shasta, California
"Most of my money I spent on boats and women. The rest I squandered'. " -Annonymous |
|
Back to top |
|
|
JamesTXSD
Joined: 01 Mar 2005 Posts: 7445 City/Region: from island boy to desert dweller
State or Province: AZ
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: "Wild Blue" (sold 9/14)
Photos: Wild Blue
|
Posted: Mon Jul 15, 2019 9:04 pm Post subject: |
|
|
Shallow water boats are the norm around here, where they run in 8 to 10" of water (yeah, inches). Some of the boats have jackplates, but it seems they often have a slight tunnel at the back of the hull. These are scooter-type hulls that also have no coaming (think: raft-like); keep 'em light.
Other than commercial boats or sport fishers (that have to stay in the channels to get out to the Gulf), any kind of cabin boat is a rarity here.
Two foot tidal swings are typical, and there are flats that show at low tide that these flat bottom boats blast over mid-tide or higher. Not for me, but I understand why jackplates are desirable... on some designs. |
|
Back to top |
|
|
ssobol
Joined: 27 Oct 2012 Posts: 3373 City/Region: SW Michigan
State or Province: MI
C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: SoBELLE
Photos: SoBelle
|
Posted: Mon Jul 15, 2019 11:48 pm Post subject: |
|
|
Sea Wolf wrote: | ssobol wrote: | WeekiTiki wrote: | pcg wrote: | I've never heard of a C-Dory with a jack plate. I'd be interested to hear if anyone uses one. Are there advantages? |
Here where there are shallows that are extremely rocky
I'm thinking it will work good
And I have one already so I'll be sure and post about it once it's in use |
How is this different from just tilting the motor up when in shallow water?
AFAIK, jack plates are for maximizing performance of the engine/boat combination usually used on bass boats and the like (because those guys seem to need to go as fast as possible). I'm not sure of the utility on a C-Dory even when used for fishing.
I don't need to optimize my hole shot when in shallow water. |
Ans.: The jack plate moves the whole motor mount up and down to change shaft depth, thus when the regular motor trim is used to tilt back for shallow water drive, the base of the motor mount can be higher by the amount the jack plate can raise the motor above normal un-adjusted height on the transom. The propeller and skeg will be higher by this amount, whether tilted straight down or back in the shallow water drive position. The jack plate can raise the motor and lower it as much as 6 inches or more.
Some illustration:
https://www.youtube.com/watch?v=62DwTnrU6FE
Joe. |
By "how is this different" I meant how will the boat performance be different. I would expect that when operating in shallow water where the motor needs to be raised a prudent operator would be running the boat at slow speed. In a slow speed condition the thrust line will not make much difference to the boat ride or handling. I would think with the motor tilted up at slow speeds the boat handling will be the same. Also, I think that the amount of lift you can get out of the tilt mechanism may be more than a jack plate. You can tilt as far as you want whereas jack plate has a certain amount of travel (usually a few inches). Relying on just the tilt also is a less complex installation. |
|
Back to top |
|
|
WeekiTiki
Joined: 12 Jun 2019 Posts: 412 City/Region: Weeki Wachee
State or Province: FL
C-Dory Year: 2003
C-Dory Model: 22 Cruiser
Vessel Name: Just Cruisin'
Photos: WeekiTiki
|
Posted: Tue Jul 16, 2019 8:05 am Post subject: |
|
|
With the motor jacked-up vs tilted when traveling in the shallows
you can run at higher rpms without prop-blasting
...and if you still need to tilt the motor
it doesn't have to be at such a great angle to the water
Motor I originally bought this jack for was a 1984 Johnson 140
I had Bob of Bob's Machine Shop, the mfg of the jack also
install a low water pick-up and nose cone on my lower unit
On a 15 foot Action hull that combo would literally fly across the water |
|
Back to top |
|
|
WeekiTiki
Joined: 12 Jun 2019 Posts: 412 City/Region: Weeki Wachee
State or Province: FL
C-Dory Year: 2003
C-Dory Model: 22 Cruiser
Vessel Name: Just Cruisin'
Photos: WeekiTiki
|
Posted: Sat Jul 20, 2019 7:51 am Post subject: |
|
|
Second sea trial seemed to be good
They replaced two of the three carbs on the Honda 75
So I wrote the check
Picking it up Monday
These boats are the easiest to load of any this size I've ever had
...and that's a big plus for me these days too |
|
Back to top |
|
|
WeekiTiki
Joined: 12 Jun 2019 Posts: 412 City/Region: Weeki Wachee
State or Province: FL
C-Dory Year: 2003
C-Dory Model: 22 Cruiser
Vessel Name: Just Cruisin'
Photos: WeekiTiki
|
Posted: Thu Aug 08, 2019 6:27 pm Post subject: |
|
|
|
|
Back to top |
|
|
WeekiTiki
Joined: 12 Jun 2019 Posts: 412 City/Region: Weeki Wachee
State or Province: FL
C-Dory Year: 2003
C-Dory Model: 22 Cruiser
Vessel Name: Just Cruisin'
Photos: WeekiTiki
|
Posted: Thu Aug 08, 2019 6:27 pm Post subject: |
|
|
Anybody know the make and model of this actuator? Folks out in BC want a pic, they apparently have no idea what goes on these boats.
|
|
Back to top |
|
|
|