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A flag question;

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  • Member since
    November 2005
A flag question;
Posted by Anonymous on Saturday, March 25, 2006 3:35 PM

I am building the Jolly Roger pirate ship, and I'm thinking ahead to the flags, which way should they be pointing if the sails are full of wind from the rear? If the ship is moving along at full speed, would they be blowing to the rear or would the wind blowing from the rear make them blow towards the front?? I think I've just blown a circut.LOL

HELP

PS A big thanks to all of the folks building sail ships on this forum, some really great reading.

Robert

  • Member since
    February 2005
  • From: Nashotah, WI
Posted by Glamdring on Saturday, March 25, 2006 4:15 PM
I think they would blow back to front if the wind is coming from the rear.  Of course, I have never been aboard a sailing ship but my logic says the would flap with the wind.....

Robert 

"I can't get ahead no matter how hard I try, I'm gettin' really good at barely gettin' by"

  • Member since
    January 2003
  • From: arizona
Posted by cthulhu77 on Saturday, March 25, 2006 4:48 PM

  They go from the stern to the bow, if you are going with the sails out...I ended up scanning my flag and making it much smaller, the kit one is huge !

                         greg

http://www.ewaldbros.com
  • Member since
    November 2005
Posted by Anonymous on Saturday, March 25, 2006 7:37 PM

I race RC sailboats and I find that the wind is always seems faster than the boats. I'd put the flags at the same angle as the sails.

Don't forget to have them flapping or rippling. Nothing looks lousier than a flag looking like it's starched or painted on plywood! Apply the decal to a piece of tin foil, let dry, trim to shape and put it around the line for raising the flag. You can then bend the tin foil to make the flag look like it's blowing in the wind.

Hope this helps.

  • Member since
    March 2004
  • From: Spartanburg, SC
Posted by subfixer on Sunday, March 26, 2006 8:27 AM
The direction that flags fly depends on the ship's speed, wind speed, and the ship's heading in relation to the wind's direction. This computes into relative wind. It is difficult for me to explain it without drawing a diagram so I won't try, it will probably confuse you more than help you.

I'm from the government and I'm here to help.

  • Member since
    November 2005
Posted by Anonymous on Sunday, March 26, 2006 8:34 AM

Thanks all, great info.

Robert

  • Member since
    May 2003
  • From: Greenville, NC
Posted by jtilley on Sunday, March 26, 2006 9:28 AM

The subject is indeed a little complicated, but if you're dealing with an old sailing ship you're fairly safe in assuming that the flag will be blowing in more-or-less the same direction as the wind.  If the wind is blowing from behind, the flag will blow forward.  If the wind is bloing from starboard, the flag will blow out to port.  Etc.  The laws of physics will make the precise angle of the flag vary somewhat, but if somebody questions how you've arranged a flag on a model you can always explain that it's flapping and you stopped it in mid-flap.

All this assumes, of course, that the ship doesn't have an engine.  (If it does, all bets are off; its progress isn't directly related to the speed or direction of the wind.)  Modern yacht designers, geniuses that they are, have figured out how to make a sailboat move faster than the wind under some circumstances, but that certainly didn't happen prior to the twentieth century.

The shaping of the flags can have quite a significant effect on the overall appearance of a model.  If you want to show flags blowing in the breeze, it's worth spending a little time studying what they actually look like.  Pick a sunny, breezy day, find a flagpole with a good-sized flag on it (in front of a school, post office, or car dealership maybe), set your camera (film or digital) to a high shutter speed, and take twenty or thirty pictures.  (I got some weird looks once when I spent half an hour docmenting the movements of the flag in front of the local library.)  You may be surprised at some of the shapes that flag assumes.

On a vaguely related subject, I've sometimes been puzzled by the "flag sheets" that come in plastic ship kits.  In many cases some anonymous but highly skilled artist has taken a great deal of time drawing pictures, in perspective, of flags with ripples and creases in them.  If a flag has an elaborate design, that must be quite a project.  (The flags in the old Revell Santa Maria come to mind.)  The modeler is supposed to cut the picture out, fold it in half, stick it to itself, and apply it to the model.  The result is a perspective drawing of a flag with ripples and creases in it attached to the model, and looking utterly ridiculous.  Why in the name of heaven would it ever occur to anybody to do such a thing?  It surely would be easier for that artist to draw the flag as a flattened-out rectangle, and anybody with sufficient physical dexterity to dress himself can put genuine, three-dimensional ripples in a flag in a matter of seconds.  Ah, the strange foibles of human nature.

 

Youth, talent, hard work, and enthusiasm are no match for old age and treachery.

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