New 28 foot C Dory
- Thread starter Knotty C
- Start date
As I recall, Tom Latham of C-Dory told me that the hull will not have a deep keel and the deadrise at the transom would be 9 degrees. Otherwise the underwater part of the hull would look like a 22 or 25 C-Dory except for the prop tunnel.
This should be a planning hull if it has enough power. The engine would be under hatches in the cockpit floor.
The interior and cockpit will be constructed of drop in liner sections which will be completed prior to dropping them into the hull. This means that the sections can be built simultaneously with the hull and all parts brought together rapidly without one set of workers having to wait for other workers to get out of the boat. This sound to me more like an automotive assembly line process than the previous linear method of C-Dory assembly. I presume that the interior sections will be installed prior to the deck being bonded in place.
Also mentioned by Tom was the development of a 'shoe-box' deck seam for the 22. The deck will be dropped over the hull and epoxy glued and bolted together under the rub rail. The deck won't be bonded to the hull while the parts are in their respective molds anymore. This will speed up the boatbuilding process.
The above information is as I remembered it from what Tom Latham said at the factory party. I could be wrong about some of this, it was a party after all!!
I hope the factory guys will comment on this after the boat show ends. We should get the strait story directly from the factory.
This should be a planning hull if it has enough power. The engine would be under hatches in the cockpit floor.
The interior and cockpit will be constructed of drop in liner sections which will be completed prior to dropping them into the hull. This means that the sections can be built simultaneously with the hull and all parts brought together rapidly without one set of workers having to wait for other workers to get out of the boat. This sound to me more like an automotive assembly line process than the previous linear method of C-Dory assembly. I presume that the interior sections will be installed prior to the deck being bonded in place.
Also mentioned by Tom was the development of a 'shoe-box' deck seam for the 22. The deck will be dropped over the hull and epoxy glued and bolted together under the rub rail. The deck won't be bonded to the hull while the parts are in their respective molds anymore. This will speed up the boatbuilding process.
The above information is as I remembered it from what Tom Latham said at the factory party. I could be wrong about some of this, it was a party after all!!
I hope the factory guys will comment on this after the boat show ends. We should get the strait story directly from the factory.
Alyssa Jean
New member
There also will be a second power option of having twin 150's on a platform off the transom.
Hey all!
Wide Load at 9' 5"? :crook I checked :idea 49 CFR, Code of Federal Regulations Department of Transportation and the legal maximum width not requiring an over width permit is 102" wide. :thup If you think about it a little most 18 wheel box vans are 102" or 9' 6" and they do not require wide load markings or permits. These trucks are involved in interstate commerce on a routine basis so one can infer, unless otherwise informed by state regulatory agencies and or road signage regarding route restrictions, states have adopted the maximum nonpermitted width as 102".
With that said, the main thing one would have to be careful of in driving a 102" wide vehicle is if you are off the beaten path of trucks where local restrictions determine the constraints of width of the vehicle :sad .
One more thing of note.... the legal height for motor vehicles is 13' 0" from the road surface to the max height of the load. Anything more than that... you could get wacked by a 13' 1" branch or worse yet... an overpass
.
have a great day! Butch
Wide Load at 9' 5"? :crook I checked :idea 49 CFR, Code of Federal Regulations Department of Transportation and the legal maximum width not requiring an over width permit is 102" wide. :thup If you think about it a little most 18 wheel box vans are 102" or 9' 6" and they do not require wide load markings or permits. These trucks are involved in interstate commerce on a routine basis so one can infer, unless otherwise informed by state regulatory agencies and or road signage regarding route restrictions, states have adopted the maximum nonpermitted width as 102".
With that said, the main thing one would have to be careful of in driving a 102" wide vehicle is if you are off the beaten path of trucks where local restrictions determine the constraints of width of the vehicle :sad .
One more thing of note.... the legal height for motor vehicles is 13' 0" from the road surface to the max height of the load. Anything more than that... you could get wacked by a 13' 1" branch or worse yet... an overpass
.have a great day! Butch
8' 6", or 102" is I believe the max without the permit. Western interstates are relaxing the heights though. There are currently loads 16' 6" to 17' 2" going through oregon now. The feds are requiring the states to raise their bridges. Not sure who is driving that nationwide, but in the west it is the mobile home industry. Freight mobility is the name of the game and we are all paying a ton of money to get those mobile homes from plant to site.
A lot of containers from ship, train, and truck require greater clearance too. Also, the tanks for Ethanol, Sulphur removal, etc., are huge now.
Here in Kansas, most of the vertical clearance is over 16 feet. Some bridges in Oklahoma are now being raised to over 16 from about 13 ' 6". You can get a map of vertical clearances at most big truck stops. They warn of clearance restrictions under 14 feet on side roads.
One must be extremelycareful about widths on the Oklahoma Turnpikes. Some of the entrances have vertical boards exactly 8 foot six inches wide! I have to pull in my motorhome mirrors to get on them! Hard to imagine they can continue that, though. It is so hard to line up that perfectly.
John
Here in Kansas, most of the vertical clearance is over 16 feet. Some bridges in Oklahoma are now being raised to over 16 from about 13 ' 6". You can get a map of vertical clearances at most big truck stops. They warn of clearance restrictions under 14 feet on side roads.
One must be extremelycareful about widths on the Oklahoma Turnpikes. Some of the entrances have vertical boards exactly 8 foot six inches wide! I have to pull in my motorhome mirrors to get on them! Hard to imagine they can continue that, though. It is so hard to line up that perfectly.
John
Lots of us drive RV's which are 8' 6" wide =102" (as are the C Dory 25 and the TC 255). With the mirrors my RV is close to 10 1/2 feet and this is "street legal"--but the boat of 9'6" is over sized and does require some type Permit. In many states you can get a yearly permit for up to 10 feet.
Lets see,
A 28 foot boat, now add 2 ft for the anchor in front, 6 ft for a pair of tilted up 150's or 250's on a bracket, and 4 ft for the trailer drawbar and that makes 40 feet!
How many people are going to want to tow a 40 ft by 9.5 ft trailer? And where can you park a trailer and tow vehicle that large at a launch ramp?
My guess is that folks who can buy a $200,000 boat will opt for bottom paint and a slip. And will call a boat mover to transport the boat to somewhere else.
I don't think this is going to be a trailer boat.
A 28 foot boat, now add 2 ft for the anchor in front, 6 ft for a pair of tilted up 150's or 250's on a bracket, and 4 ft for the trailer drawbar and that makes 40 feet!
How many people are going to want to tow a 40 ft by 9.5 ft trailer? And where can you park a trailer and tow vehicle that large at a launch ramp?
My guess is that folks who can buy a $200,000 boat will opt for bottom paint and a slip. And will call a boat mover to transport the boat to somewhere else.
I don't think this is going to be a trailer boat.
I have some friends with a 27ft HarborCraft that is 9'6" wide. They towed it from Seattle to the CA with a standard half ton Chevy but have upgraded to a 3/4 ton.
It is not a problem to get the permits for the western states - just pay your money once a year.
I followed him home and there were a few times where it looked a little close between trucks and road barriers. They plan on towing back to the Sound this summer and to Lake Powell but I doubt they will ever tow any farther.
Longer and wider just requires more caution while driving and where you pull into.
Steve
It is not a problem to get the permits for the western states - just pay your money once a year.
I followed him home and there were a few times where it looked a little close between trucks and road barriers. They plan on towing back to the Sound this summer and to Lake Powell but I doubt they will ever tow any farther.
Longer and wider just requires more caution while driving and where you pull into.
Steve
Butch":3eszszud said:Hey all!
Wide Load at 9' 5"? :crook I checked :idea 49 CFR, Code of Federal Regulations Department of Transportation and the legal maximum width not requiring an over width permit is 102" wide. :thup If you think about it a little most 18 wheel box vans are 102" or 9' 6" and they do not require wide load markings or permits. These trucks are involved in interstate commerce on a routine basis so one can infer, unless otherwise informed by state regulatory agencies and or road signage regarding route restrictions, states have adopted the maximum nonpermitted width as 102".
With that said, the main thing one would have to be careful of in driving a 102" wide vehicle is if you are off the beaten path of trucks where local restrictions determine the constraints of width of the vehicle :sad .
One more thing of note.... the legal height for motor vehicles is 13' 0" from the road surface to the max height of the load. Anything more than that... you could get wacked by a 13' 1" branch or worse yet... an overpass
have a great day! Butch
Do they make the inches smaller or the feet bigger in MD?? ..... :lol:
Before the TC 255, I had a 28 foot boat, which was really 32 feet LOA. and 9'6" wide. Frankly it was a royal pain. We found that rural roads were too narrow, and at times had to wait for on comming traffic--that trees overhung the road (rember that height also is getting close to the 13'6" limit. The trailer length/including 3' swim step and outdrive, plus anchor etc--don't really add up to a 40 foot railer--more like mid 30's--and that is very close to the length of the Tom Cat. No problem finding places to park long trailers--most ramps that can handle that size boat usually have large enough parking spaces.
But--the difficulties of trailering that size boat, (especially the beam) lead us back to the TC 255. Yes you can trailer a 9'6" boat--but I don't find it a pleasant experience--lots of difference than an 8'6" boat. and much tougher than driving an RV which is over 10' wide with mirrors.k
As for tow vehicles--I don't know the weight of the 28, but I like to have a tow vehicle which weighs nearly as much if not as much as the tow. It gives much better control. (I saw a really niffty Chevy 4 x 4 4500 "Monroe" custom at the local dealer--origional sticker price was close to 90K--that's a tow rig worthy of a large C Dory!--not a 1/2 ton truck....)
But--the difficulties of trailering that size boat, (especially the beam) lead us back to the TC 255. Yes you can trailer a 9'6" boat--but I don't find it a pleasant experience--lots of difference than an 8'6" boat. and much tougher than driving an RV which is over 10' wide with mirrors.k
As for tow vehicles--I don't know the weight of the 28, but I like to have a tow vehicle which weighs nearly as much if not as much as the tow. It gives much better control. (I saw a really niffty Chevy 4 x 4 4500 "Monroe" custom at the local dealer--origional sticker price was close to 90K--that's a tow rig worthy of a large C Dory!--not a 1/2 ton truck....)
Joe,
Sorry, but that's all I know. Inboard diesel driving a shaft and prop in a tunnel about 1/2 the prop diameter deep.
We will just have to wait for more info from the factory.
However, I did find out that the estimated performance will be similar to the 22 or 25. Plane out at 13 knots, max at 26 knots.
Sorry, but that's all I know. Inboard diesel driving a shaft and prop in a tunnel about 1/2 the prop diameter deep.
We will just have to wait for more info from the factory.
However, I did find out that the estimated performance will be similar to the 22 or 25. Plane out at 13 knots, max at 26 knots.
Larry-
Thanks!
I did go ahead and Google up 'tunnel drive' and found this drawing:
The description says that the 'tunnel drive' provides unique "beachability" due to it's shallow underwater profile.
There were some Penn Yan small ~20 foot boats that featured tunnel drive. Here's a LINK to a discussion about them. SUMMARY: Good shallow water performance, but hard to maneuver at low speeds, hard to dock, and kinda slow and inefficient (=gas bill$$$) due to excess surface area (drag).
Then there's this shallow stern drive/tunnel drive device description translated from the German source;
TUPROP
The tunnel prop. technology now for re-tooling for family cruisers, sport and water ski boats, High performance and speedboats. Simplest assembly at almost all Mercruiser Bravo one. With all advantages of our tunnel prop. system. Naturally in used MSA navy systems quality!
The most important characteristics:
• Significantly less draft than conventional gears!
• Considerably decreased water resistance - up to 40%!
• Higher thrust performance due to the stable slipstream!
• Stronger acceleration!
• Higher speed!
• Better maneuverability forward and backward!
• Improved path stability at high speeds!
• No propeller ventilation at low and medium speeds!
• Fuel savings due to less water resistance!
• No disruptive influence on the slipstream by the surrounding water!
• Very good trim behavior!
• Simple installation!
• No modifications to the boat required!
• No special propeller required; conventional propellers can be used!
• Propeller hub exhaust, resulting in very low noise!
• Outstanding in shallow water!
• Damage to the underwater gear from grounding is considerably reduced,
• avoiding high repair costs!
• No special workshop required for installation!
• Usable on nearly all Mercruiser Bravo Ones, including the X and XR versions!
• Can be used in family cruisers, runabouts, ski boats, high-performance
• and racing boats!
• Long service life, because only heavy-duty parts are used!
• Low water pickup for optimal cooling water feed!
MADE BY LARVA IN GERMANY!
I think the last source has a bit of Tunnel Vision!
Gotta go for now, getting Carpal-Tunnel Syndrome!
Keep Your Tunnel Dry!
P.S.: Who will be the first to cut out the bottom center of their C-Dory and install Tunnel Drive and an inboard???....Dave, put down that darned chainsaw!!!
P.S.S.: If one didn't want to use a v-drive or a I/O drive set up, the engine could be made into a giant generator and one of those electric driven tubular bow/stern thrusters used in the tube for the thrust transfer.
Joe. :wink
Another shallow outdrive found with a tunnel cover. Possibly a Tuprop with a different nameplate, a-la Chevy/GMC?)
Thanks!
I did go ahead and Google up 'tunnel drive' and found this drawing:
The description says that the 'tunnel drive' provides unique "beachability" due to it's shallow underwater profile.
There were some Penn Yan small ~20 foot boats that featured tunnel drive. Here's a LINK to a discussion about them. SUMMARY: Good shallow water performance, but hard to maneuver at low speeds, hard to dock, and kinda slow and inefficient (=gas bill$$$) due to excess surface area (drag).
Then there's this shallow stern drive/tunnel drive device description translated from the German source;
TUPROP
The tunnel prop. technology now for re-tooling for family cruisers, sport and water ski boats, High performance and speedboats. Simplest assembly at almost all Mercruiser Bravo one. With all advantages of our tunnel prop. system. Naturally in used MSA navy systems quality!
The most important characteristics:
• Significantly less draft than conventional gears!
• Considerably decreased water resistance - up to 40%!
• Higher thrust performance due to the stable slipstream!
• Stronger acceleration!
• Higher speed!
• Better maneuverability forward and backward!
• Improved path stability at high speeds!
• No propeller ventilation at low and medium speeds!
• Fuel savings due to less water resistance!
• No disruptive influence on the slipstream by the surrounding water!
• Very good trim behavior!
• Simple installation!
• No modifications to the boat required!
• No special propeller required; conventional propellers can be used!
• Propeller hub exhaust, resulting in very low noise!
• Outstanding in shallow water!
• Damage to the underwater gear from grounding is considerably reduced,
• avoiding high repair costs!
• No special workshop required for installation!
• Usable on nearly all Mercruiser Bravo Ones, including the X and XR versions!
• Can be used in family cruisers, runabouts, ski boats, high-performance
• and racing boats!
• Long service life, because only heavy-duty parts are used!
• Low water pickup for optimal cooling water feed!
MADE BY LARVA IN GERMANY!
I think the last source has a bit of Tunnel Vision!
Gotta go for now, getting Carpal-Tunnel Syndrome!
Keep Your Tunnel Dry!
P.S.: Who will be the first to cut out the bottom center of their C-Dory and install Tunnel Drive and an inboard???....Dave, put down that darned chainsaw!!!
P.S.S.: If one didn't want to use a v-drive or a I/O drive set up, the engine could be made into a giant generator and one of those electric driven tubular bow/stern thrusters used in the tube for the thrust transfer.
Joe. :wink
Another shallow outdrive found with a tunnel cover. Possibly a Tuprop with a different nameplate, a-la Chevy/GMC?)
posted received line drawing of CD28 in the documents link.
Dear Mr. Administrators. Please feel free to move it to this link if you wish... (like you needed my permision
), but this was the only way I could figure out how to get it onto the site... My photo album would not accept pdf files...
Thanks
Byrdman
Dear Mr. Administrators. Please feel free to move it to this link if you wish... (like you needed my permision
), but this was the only way I could figure out how to get it onto the site... My photo album would not accept pdf files... Thanks
Byrdman
William and Beth Tucker
New member
Hello C-Brats,
We enjoyed the C-Brat gathering at the Hawthorne and the C-Dory factory. We wish we’d had more time to meet everyone—maybe next time! (We’re registered as William and Bethanie Tu—we didn’t realize there was a character limit and we entered our whole names, with the result being Tucker-turned-into Tu! We’re attempting to correct this.)
We saw one sketch of the proposed 28’ C-Dory as were leaving the C-Brat gathering at the C-Cory factory. At that time Jeff Messmer said it had a 10 foot beam, and that the bathroom is down in the V-birth. We noticed from the sketch that the pilot (starboard) seat and the seat on portside were not straight across from one another. This arrangement might suit some boat owners, but for my wife and me, seats straight across from one another are better because it is easier to carry on a conversation and for the one who is co-piloting to help watch for crab pots, traffic, etc.
We mentioned to Jeff that we would be interested in a 28 footer, but only if the seats are straight across from one another, and if it had twin outboards. We actually would prefer to have the bathroom in the back, as for us this arrangement offers greater privacy.
William and Beth
We enjoyed the C-Brat gathering at the Hawthorne and the C-Dory factory. We wish we’d had more time to meet everyone—maybe next time! (We’re registered as William and Bethanie Tu—we didn’t realize there was a character limit and we entered our whole names, with the result being Tucker-turned-into Tu! We’re attempting to correct this.)
We saw one sketch of the proposed 28’ C-Dory as were leaving the C-Brat gathering at the C-Cory factory. At that time Jeff Messmer said it had a 10 foot beam, and that the bathroom is down in the V-birth. We noticed from the sketch that the pilot (starboard) seat and the seat on portside were not straight across from one another. This arrangement might suit some boat owners, but for my wife and me, seats straight across from one another are better because it is easier to carry on a conversation and for the one who is co-piloting to help watch for crab pots, traffic, etc.
We mentioned to Jeff that we would be interested in a 28 footer, but only if the seats are straight across from one another, and if it had twin outboards. We actually would prefer to have the bathroom in the back, as for us this arrangement offers greater privacy.
William and Beth