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Old 12-23-2017, 12:48 PM   #4801
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Originally Posted by North Baltic sea View Post
Hi,

Can you give an illustration an example of what ship you meant?

Hmm ...? 1 WW ships Bow were really sharp in shape although the angle of the same fashion as the x-bow I thought was not the same thing because of the huge difference between the bow displacement and the force to rise up.


https://www.militaryfactory.com/ships/ww1-warships.asp

NBs
Now there is a lethal looking craft
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Old 12-23-2017, 12:55 PM   #4802
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very sleek
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Old 12-23-2017, 01:26 PM   #4803
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Same company, Baltic Workboats...
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Old 12-23-2017, 01:33 PM   #4804
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very sleek
They must got inspiration from this nose:



L
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Old 12-23-2017, 01:37 PM   #4805
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QUOTE=bogranjac1;619915]very sleek[/QUOTE]

Sleek my arse.
Look at the hullsides. Not even fair. Looks a bit like a homebuilt metal boat.

However the bow is sleek and in a way the house is too. Don’t see any external junk like hand rails, life boats, masts, ect ect. I suspect the house would reflect radar energy even better w a rounded house front. Would look better and more sleek.
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Old 12-23-2017, 01:43 PM   #4806
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Originally Posted by North Baltic sea View Post
Hi,

Something like this.
Attachment 71457

NBs
Much more complementary to the form, but wouldnt that be an “Axe” bow?
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Old 12-23-2017, 02:12 PM   #4807
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LOL and your excuse to the USCG for piloting the boat at 21 knots on the ICW is....?
Seldom if ever do we drive our car at its maximum speed sooo, why a boat?
There must be a reasonable "sweet spot" for that boat.
On full plane... 16 to 17 knots works well and = 1 nmpg.

Sweet spot for economy while still making decent time is 6.5 to 7 knots which = 2 +/- nmpg. 7.58 knots is calced hull speed.

For real economy... 4.5 to 5 knots running just one engine = 2.75 nmpg. Note that is great speed for ICW locals.

Then again - sometimes it may become needed to go WOT fast. On a 2009 day pictured, due to circumstances that suddenly occurred while coming in toward the GG bridge, I felt need to push Tolly onto WOT [about 23 knots] for a few minutes to get out of the "pleasure boat" fray; while "The Maltese Falcon" headed toward SF Bay. And, no... when photo was taken we were not at WOT.... but, I was then surveying the confuctuation developing amid too many stupid boat captains... that soon thereafter did make me decide to hit WOT for quickly getting way away.
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Old 12-23-2017, 02:19 PM   #4808
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On full plane... 16 to 17 knots works well and = 1 nmpg.

Sweat spot for economy while still making decent time is 6.5 to 7 knots which = 2 +/- nmpg. 7.58 knots is calced hull speed.

For real economy... 4.5 to 5 knots running just one engine = 2.75 nmpg. Note that is great speed for ICW locals.

Then again - sometimes it may become needed to go WOT fast. On a 2009 day pictured, due to circumstances that suddenly occurred while coming in toward the GG bridge, I felt need to push Tolly onto WOT [about 23 knots] for a few minutes to get out of the "pleasure boat" fray; while "The Maltese Falcon" headed toward SF Bay. And, no... when photo was taken we were not at WOT.... but, I was then surveying the confuctuation developing amid too many stupid boat captains... that soon thereafter did make me decide to hit WOT for quickly getting way away.
LOL You'd love the Miami cut. NOT.
I guess that is one of the reasons I now have a fast trawler instead of another trawler.
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Old 12-23-2017, 02:25 PM   #4809
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very sleek
An unproven platform with unproven weaponry
I do believe they put a rail gun on it.
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Old 12-24-2017, 01:03 AM   #4810
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They must got inspiration from this nose:



L


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Old 12-24-2017, 01:22 AM   #4811
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Now there is a lethal looking craft
You have a narrow, streamlined design. We Scandinavia have a simple and functional perspective on killing at sea. A box that goes + 60kn.





Pretty Christmas stuff

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Old 12-24-2017, 10:47 AM   #4812
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QUOTE=bogranjac1;619915]very sleek
Sleek my arse.
Look at the hullsides. Not even fair. Looks a bit like a homebuilt metal boat.

However the bow is sleek and in a way the house is too. Don’t see any external junk like hand rails, life boats, masts, ect ect. I suspect the house would reflect radar energy even better w a rounded house front. Would look better and more sleek.[/QUOTE]


its called stealth technology..

Its NOT supposed to reflect radar..


HOLLYWOOD
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Old 12-24-2017, 11:15 AM   #4813
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Sleek my arse.
Look at the hullsides. Not even fair. Looks a bit like a homebuilt metal boat.

However the bow is sleek and in a way the house is too. Don’t see any external junk like hand rails, life boats, masts, ect ect. I suspect the house would reflect radar energy even better w a rounded house front. Would look better and more sleek.

its called stealth technology..

Its NOT supposed to reflect radar..


HOLLYWOOD[/QUOTE]

Yea, says right on the label, "Stealth Technology. Does not reflect RADAR"
They and other "stealth" planes and boats will reflect RADAR but the 'picture' is supposed to be much smaller than in real life.
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Old 12-24-2017, 11:18 AM   #4814
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Originally Posted by healhustler View Post
I proposed an X-Bow project for my Krogen Manatee, but then I saw how the change would have ruined the refined sleek and graceful lines of the boat.
Does look a bit PhotoShopped. Nice try. WINK
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Old 12-24-2017, 11:31 AM   #4815
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NBS, it's funny but I guess I never thought of your country, or many others, having a navy. That ship is pretty amazing and it would be fun to be on board for a short cruise.


I found another video of the ship that was interesting. Take a look at this, and especially the bow treatment that you will get a decent look at around 3:00 into the video. I don't think I've ever seen a bow setup such as that ship has.


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Old 12-24-2017, 11:43 AM   #4816
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its called stealth technology..

Its NOT supposed to reflect radar..


HOLLYWOOD
Quote:
Yea, says right on the label, "Stealth Technology. Does not reflect RADAR"
They and other "stealth" planes and boats will reflect RADAR but the 'picture' is supposed to be much smaller than in real life.
OldDan and Hollywood, that's not exactly correct. This past summer I had an opportunity to do a very close-up walk around and examination of the USAF's newest stealth fighter, the F-22 Raptor.

The skin of the aircraft, unlike other aircraft and stealth aircraft is made from a different material that actually absorbs the radar power rather than simply reflect it. The plane is totally invisible to radar and, if they want it to be seen by radar, they have to attach a piece of equipment to the bottom of the plane that will reflect the radar energy.








Those are my grandsons in the photo above. When we got the tour of the plane the pilot asked me not to touch the skin of the plane and also not to take any close up photos of the skin. Once I got up next to it (within arm's length) I could see the structure of the skin and could see why he didn't want me to touch it or photograph it.
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Old 12-24-2017, 01:07 PM   #4817
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and submarines currently have a skin to absorb SONAR but, sometimes a portion becomes dislodged allowing for some SONAR reflection.
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Old 12-24-2017, 02:16 PM   #4818
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Looks like they have been around for a while, for some purpose or another.
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Old 12-24-2017, 05:23 PM   #4819
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OldDan and Hollywood, that's not exactly correct. This past summer I had an opportunity to do a very close-up walk around and examination of the USAF's newest stealth fighter, the F-22 Raptor.

The skin of the aircraft, unlike other aircraft and stealth aircraft is made from a different material that actually absorbs the radar power rather than simply reflect it. The plane is totally invisible to radar and, if they want it to be seen by radar, they have to attach a piece of equipment to the bottom of the plane that will reflect the radar energy.








Those are my grandsons in the photo above. When we got the tour of the plane the pilot asked me not to touch the skin of the plane and also not to take any close up photos of the skin. Once I got up next to it (within arm's length) I could see the structure of the skin and could see why he didn't want me to touch it or photograph it.
GFC,
I was over simplifying the stealth comment for you guys, I worked on projects in the aviation industry that were related to new stealth in the late 80's so I didn't go into a long winded explanation of the tech because it just didn't matter. Just was pointing out that the Z was shaped that was because of stealth. That ship isn't "invisible" to radar but it returns a much smaller target.. the Raptor is very stealth .. right up to the point it opens it's bay doors.
Stealth never makes for a " good looking" design due to the angular design.
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Old 12-24-2017, 08:38 PM   #4820
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Sleek my arse.
Look at the hullsides. Not even fair. Looks a bit like a homebuilt metal boat.

Old Dan and Hollywood,
However the bow is sleek and in a way the house is too. Don’t see any external junk like hand rails, life boats, masts, ect ect. I suspect the house would reflect radar energy even better w a rounded house front. Would look better and more sleek.

its called stealth technology..

Its NOT supposed to reflect radar..


HOLLYWOOD[/QUOTE]

I’m well aware of that as I stated or implied. And (also as I said) rounding the house fwd should not interfere w the radar return or even make it less. I suspect the sharp breaks were done for economy of the build. And highly justifiable in view of our extremely expensive military spending.
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