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Launching ways


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49 replies to this topic

#41
toly.kol

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I did it myself so

я делал это себе так 

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#42
roach101761

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Joel

 

Back to your picture of "can you count the Dry Docks".  Is the large rectangular object moored on the far right hand edge of the basin a floating dry dock?  I could not blow up the picture but it looks like it has gates on one end and  Helicopter pad build over the other end. 


Phil Roach

Director, Nautical Research Guild

President, Shipmodeler's Guild, Southwest Florida


#43
JustBlowinInTheWind

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Toly.kol, how did you make the bricks?


Current Build: Rattlesnake 1:64 privateer from Mamoli. 20 guns, 1781
On hold: Niagara. U.S Brig, War of 1812, Model Shipways / 1:64 (Until I get some rigging experience) First build. Yep. Bit off a chunk a chew.

Waiting its turn:
C.S.S. Alabama, Steam and Sail Sloop of war, 1862: Mamoli / 1:120

Brian

Of all the things I've lost, I miss my mind the most - A saying on a hat my Dad wore.

#44
jbshan

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Joel

 

Back to your picture of "can you count the Dry Docks".  Is the large rectangular object moored on the far right hand edge of the basin a floating dry dock?  I could not blow up the picture but it looks like it has gates on one end and  Helicopter pad build over the other end. 

I think it's just a barge, Phil, though a really big one, I must admit.  If it were a drydock I think you'd see the shadow of the side of the well the way the light is.

Well, on closer look, I think it is either a training ship of some sort or a service vessel.  Just forward of the 'H' it says 'LONGBOW' which is a version of an Apache helicopter.

Blow up from GoogleMaps:

'Longbow?'.jpg


Edited by jbshan, 28 February 2015 - 12:01 AM.


#45
roach101761

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A service ship is a good bet, or barge. Thanks for blowing it up Joel.

 

Phil


Phil Roach

Director, Nautical Research Guild

President, Shipmodeler's Guild, Southwest Florida


#46
toly.kol

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Toly.коль, как ты, делают кирпичи?

1. bought the tile of the desired color 2. sawing with a diamond disk to a depth of 2 mm with water then broke in half 3. sawing CIRCULAR SAW  FEТ

1. купил плитку нужного цвета  2. пилил алмазным диском на глубину 2 мм с водой потом ломал  пополам 3. пилил на ЦИРКУЛЯРНАЯ ПИЛА FET

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#47
trippwj

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That's an awful lot of Euros for an American dollar. I think I'll try to make something like the one in the photo by jbsham.

 

I do have time yet, so if anyone comes up with anything else, I'm all ears. Said Ross Parrot.

 

I'm a bit late to the party, but You may want to take a look at the section by Richard Barker, 2003. “Cradles of Navigation” Re-Visited. In Shipbuilding Practice and Ship Design Methods from the Renaissance to the 18th Century: A Workshop Report, 103–163. Preprint 245. [Berlin]: Max-Planck-Institut für Wissenschaftsgeschichte. https://www.mpiwg-be...prints/P245.PDF.

He provides several sketches of a variety of launching methods starting on page 155.


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Wayne

Neither should a ship rely on one small anchor, nor should life rest on a single hope.
Epictetus


#48
Roger Pellett

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When a ship is launched, it is supposed to pivot about the forward cradle. Looking at the starboard side of the ship, as it enters the water the stern should lift and the vessel would rotate in a clockwise direction about the forward support. If the stern does not have sufficient buoyancy there is a danger of the vessel pivoting about the end of the ways (rotating counterclockwise) and breaking the keel. For this reason, the forward support- called the fore poppet is built to accommodate this rotation, either with blocking that is crushed as the vessel pivots or with specially curved surfaces.

For this reason, I don't believe that vertical posts on the fore poppet would be used as these would punch a hole in the bow when the ship rotates.

For a 20th century discussion of launching see Principles of Naval Architecture by Rossell and Chapman Volume I or any other naval architecture textbook

Roger Pellett
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#49
Deperdussin1910

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Just saw this thread.  Here is a picture of a simple launching cradle for my RC 1/24 scale War of 1812 Privateer.


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"So we beat on, boats against the current, borne back ceaselessly into the past."


#50
Deperdussin1910

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pic attached this time

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"So we beat on, boats against the current, borne back ceaselessly into the past."





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