HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Jan 19, 2013, 02:51 PM
Damp and Dizzy member
Brooks's Avatar
Bozeman, Montana, United States
Joined Aug 2003
3,393 Posts
Yancovitch, I think any fabric permeable enough to shed wind would prove to be too permeable to make a good airfoil. Thus, your ship would not sail forward, but merely drift downwind.

Jimmy James over on modelboatmayhem site, devised some easyish ways to furl sails on his models. Mine is the easiest of all (just remove the yard and it's attached sail), but loses realism in the yard crane. You might check Jimmy James' posts for ideas that you could apply to your next super realistic model (yours are very beautiful). Jimmy passed away last year, sadly, but his posts live on, to the benefit of modelers.

Here is one of his threads, look at post#57:
http://www.modelboatmayhem.co.uk/for...?topic=11955.0
Brooks is offline Find More Posts by Brooks
Reply With Quote
Sign up now
to remove ads between posts
Old Jan 19, 2013, 07:29 PM
Registered User
Joined Oct 2006
835 Posts
son of a gun....i never thought of that!
yancovitch is offline Find More Posts by yancovitch
Reply With Quote
Old Jan 20, 2013, 03:18 PM
Registered User
kotori87's Avatar
Joined Dec 2006
147 Posts
When scaling ship's speed, I have found that they look better when you scale time as well. I remember old filmmakers used to use this trick a lot, filming their models at high speed then slowing the film down so it'd look more realistic. The rule of thumb I use is square-root of scale. For example, if your ship is built in 1:144 scale (like my combat models), scale speed is speed * sqrt(144) = speed*12, and scale time is time * sqrt(144) = time*12. So when my battleship fires its guns every 6 seconds, its scale rate of fire is one shot every 72 seconds, which is actually about right for a predreadnought battleship.

I have tried slowing down film of my ships, both electric-powered and sail-powered, but alas my camera only records 30fps and it gets choppy very quickly. If I had a faster camera, though...
kotori87 is offline Find More Posts by kotori87
Reply With Quote
Old Jan 20, 2013, 05:57 PM
Registered User
Dolores, Colorado
Joined Dec 2007
1,581 Posts
Mast at 90 degree, no wind, boring
Mast at 70 degree, some Wind
Mast at 50 degree, fun Wind
Mast at 30 degree, lots of wind
Mast at 0 degree, to much wind
Mast at 180degree start swimming
Mast at 360 degree, got Lucky
Schrott is online now Find More Posts by Schrott
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Wind speed Andersoneric04 Fuel Plane Talk 23 Mar 08, 2012 01:05 PM
Data Beaufort Scales (Wind Speed) Susalynb Natchez Trace Bandits Model Aviation Club 0 Jul 15, 2010 09:57 PM
Question Scale and Wind Speed - What's the Relationship? djacob7 Modeling Science 4 Apr 30, 2009 01:09 AM
Discussion For outdoor blimps, is there a scale for determining blimp size for wind speed? MikeOfAtlanta Blimps 16 Sep 24, 2008 10:03 AM
Discussion Heli Scale vs Wind Speed Spies Micro Helis 2 Feb 19, 2008 09:49 AM