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- Thread starter pdecat
- Start date
370 Motoryacht
Member
- Joined
- Jan 17, 2010
- RO Number
- 31959
- Messages
- 521
Fresh water.
Some fuel burn numbers from actual running the boat myself when I first got her.
Used a Garmin 76C for speed and Floscans for fuel burn.
She had 13 X 11 props, but after Hurricane Ike, we changed to 13 X 10 because
top end rpm's was around 4500.
These numbers are full fuel, full water, full fridge, full everything, spares
tools, clothes, ice chest... ect.
2000 rpms/11 mph/4 gal. each engine. 8 total gph.
2500 rpms/17.2 mph/6 gal. each engine. 12 total gph.
3200 rpms/23 mph/9 gal. port & 11 gal. stb. 20 total gph.
4000 rpms/28.5 mph/18 gph port & 22 gph stb. 40 gph total.
When I changed out the props, the rpms and gph were the same for each engine.
Used a Garmin 76C for speed and Floscans for fuel burn.
She had 13 X 11 props, but after Hurricane Ike, we changed to 13 X 10 because
top end rpm's was around 4500.
These numbers are full fuel, full water, full fridge, full everything, spares
tools, clothes, ice chest... ect.
2000 rpms/11 mph/4 gal. each engine. 8 total gph.
2500 rpms/17.2 mph/6 gal. each engine. 12 total gph.
3200 rpms/23 mph/9 gal. port & 11 gal. stb. 20 total gph.
4000 rpms/28.5 mph/18 gph port & 22 gph stb. 40 gph total.
When I changed out the props, the rpms and gph were the same for each engine.
- Joined
- Feb 1, 2007
- RO Number
- 25075
- Messages
- 1,698
regarding the Shoell/Trojan Delta Conic Hull Design
From BOATING May, 1981 Boat Test 299
see highlighted area specifically
<snip>
"So much for the boat as a piece of art. How does she perform? That’s the important question, and it is here that the 10 Meter surprised even Trojan.
First, she tracks in a beam sea like a boat three times her length. That sounds like so much hyperbole, but in this case it isn’t. Coming south from Fort Lauderdale, I set a course of 180* - in four-to seven-foot beam seas.
Second, in following seas she tracks as straight as an arrow. Coming into Baker’s Haulover we surfed a few times down six- to eight-foot seas without the first untoward motion. The bow did not want to dig in, and the stern gave not the slightest indication of wanting to come around.
Third, docking and close-quarters maneuvering are actually easier than on most twin-screw inboards because the shafts are six to eight inches farther outboard than they normally would be on a boat this size, or on larger deep-Vs. As a result, she’s quite maneuverable.
Fourth, she’s as stable as Trojan claimed she would be. At rest in a beam sea, the boat reacts exactly as promised. Now follow this: she rolls from port to starboard to port (exactly one cycle in about three seconds on a stopwatch), then she pitches aft, then forward, then she’s motionless. Incredible. At trolling speeds in a beam sea the boat gently rides up and over as the sea slides under. No need for calisthenics. No gut-rolling snap. It’s a delight.
The reason for this incredibly defined behavior is, of course, the “Delta-Conic” hull designed and perfected by Harry Schoell. On the Trojan 10 Meter this underwater shape (described fully in February) is superb in the conditions I encountered.
Running the boat is fun. She feels massive, far bigger than her 33’ LOA. She moves over seas with the authority of a much larger boat. The rudder shafts are right at the transom, which makes the boat more maneuverable in reverse, and probably also helps her track so well. The boat is responsive, easy to control, and, as I keep saying, remarkably stable."
<snip>
From SEA MAGAZINE Feb, 1987
<snip>
"Indeed the 10 Meter’s success is based on more than sexy styling. Harry Schoell came up with an innovative hull to go with the 10 Meter’s innovative lines topside. The hull, called the “DeltaConic” design by Trojan, has unusual 18-inch wide, horizontal chines that run from bow to stern on either side. In between the chines is a more usual modified V-hull, one that’s quite deep at the bow but flattens out toward the stern.
What makes the 10 Meter truly different from other boats is its almost uncanny stability. The 10 Meter’s wide beam combined with the wide chines quickly stills any rolling motion. I’ve never been aboard a similar sized boat that felt as stable at dockside as this Trojan. Under way, the chines make the boats feel – to use an old car salesman’s cliché – like it corners on rails. Mind you, steering response isn’t especially quick. But the boat’s attitude is solid and secure as those chines lock in for the turn."
<snip>
From BOATING May, 1981 Boat Test 299
see highlighted area specifically
<snip>
"So much for the boat as a piece of art. How does she perform? That’s the important question, and it is here that the 10 Meter surprised even Trojan.
First, she tracks in a beam sea like a boat three times her length. That sounds like so much hyperbole, but in this case it isn’t. Coming south from Fort Lauderdale, I set a course of 180* - in four-to seven-foot beam seas.
Second, in following seas she tracks as straight as an arrow. Coming into Baker’s Haulover we surfed a few times down six- to eight-foot seas without the first untoward motion. The bow did not want to dig in, and the stern gave not the slightest indication of wanting to come around.
Third, docking and close-quarters maneuvering are actually easier than on most twin-screw inboards because the shafts are six to eight inches farther outboard than they normally would be on a boat this size, or on larger deep-Vs. As a result, she’s quite maneuverable.
Fourth, she’s as stable as Trojan claimed she would be. At rest in a beam sea, the boat reacts exactly as promised. Now follow this: she rolls from port to starboard to port (exactly one cycle in about three seconds on a stopwatch), then she pitches aft, then forward, then she’s motionless. Incredible. At trolling speeds in a beam sea the boat gently rides up and over as the sea slides under. No need for calisthenics. No gut-rolling snap. It’s a delight.
The reason for this incredibly defined behavior is, of course, the “Delta-Conic” hull designed and perfected by Harry Schoell. On the Trojan 10 Meter this underwater shape (described fully in February) is superb in the conditions I encountered.
Running the boat is fun. She feels massive, far bigger than her 33’ LOA. She moves over seas with the authority of a much larger boat. The rudder shafts are right at the transom, which makes the boat more maneuverable in reverse, and probably also helps her track so well. The boat is responsive, easy to control, and, as I keep saying, remarkably stable."
<snip>
From SEA MAGAZINE Feb, 1987
<snip>
"Indeed the 10 Meter’s success is based on more than sexy styling. Harry Schoell came up with an innovative hull to go with the 10 Meter’s innovative lines topside. The hull, called the “DeltaConic” design by Trojan, has unusual 18-inch wide, horizontal chines that run from bow to stern on either side. In between the chines is a more usual modified V-hull, one that’s quite deep at the bow but flattens out toward the stern.
What makes the 10 Meter truly different from other boats is its almost uncanny stability. The 10 Meter’s wide beam combined with the wide chines quickly stills any rolling motion. I’ve never been aboard a similar sized boat that felt as stable at dockside as this Trojan. Under way, the chines make the boats feel – to use an old car salesman’s cliché – like it corners on rails. Mind you, steering response isn’t especially quick. But the boat’s attitude is solid and secure as those chines lock in for the turn."
<snip>
I will post some pictures when my boat gets hauled in a week or two to replace defective Britter Innovations high power blue Canyon LED through hull lights. The factory has been great they are replacing all 4 they admitted they had 2 engineering/design flaws and are replacing mine for free. Yes I have to pay for the haul and mounting but they could have told me to pound sand the lights are 2 years old.
Bill
Bill
I will post some pictures when my boat gets hauled in a week or two to replace defective Britter Innovations high power blue Canyon LED through hull lights. The factory has been great they are replacing all 4 they admitted they had 2 engineering/design flaws and are replacing mine for free. Yes I have to pay for the haul and mounting but they could have told me to pound sand the lights are 2 years old.
Bill
Bill
- Joined
- May 10, 2002
- RO Number
- 8527
- Messages
- 66
Had bottom work done about 1 1/2 years ago. Also some minor gel work, no blisters. 1999 50ft Sea Ray Sundancer
Eric
Eric
- Joined
- Feb 28, 2007
- RO Number
- 25362
- Messages
- 3,996
You asked for it. For some this might be interesting. For others I'm sure it will be a freak show.
Motorcat MC30
Power - Twin 50hp Honda OB
Cruise - 16-17 knots with e10, 17-18 knots without ethanol
Burn - 3.5-4.5 gph depending on sea conditions
Weight - 4,500lbs dry, closer to 9,000 with what I have on her per truck scale
...and...no chines
Motorcat MC30
Power - Twin 50hp Honda OB
Cruise - 16-17 knots with e10, 17-18 knots without ethanol
Burn - 3.5-4.5 gph depending on sea conditions
Weight - 4,500lbs dry, closer to 9,000 with what I have on her per truck scale
...and...no chines
- Joined
- Aug 21, 2005
- RO Number
- 18797
- Messages
- 335
1986 Thompson 8652 Offshore hardtop
Power: Single 230 HP 5.0 Merc Alpha 1
Cruises nice at 25, tops out around 32
Tim
Power: Single 230 HP 5.0 Merc Alpha 1
Cruises nice at 25, tops out around 32
Tim