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windward vs leeward
windward vs leeward
Published: 2013/01/24
Channel: Nicastri Tankard
Science Leeward and Windward CJ Studios
Science Leeward and Windward CJ Studios
Published: 2015/11/30
Channel: D. Julian
Windward vs. Leeward
Windward vs. Leeward
Published: 2017/12/04
Channel: Joel Sumagaysay
Windward v.s. Leeward Side of a Mountain
Windward v.s. Leeward Side of a Mountain
Published: 2015/01/16
Channel: NatureRocks with Eileen
Leeward vs Windward - LiveTeacher.ca
Leeward vs Windward - LiveTeacher.ca
Published: 2014/01/13
Channel: LiveTeacherCanada
Windward and leeward
Windward and leeward
Published: 2014/11/05
Channel: Audiopedia
Orographic Lift,  coastal moutain range, rain shadow, orographic precipitation at windward side
Orographic Lift, coastal moutain range, rain shadow, orographic precipitation at windward side
Published: 2017/01/09
Channel: Geografia
Jon Emmett, Be Your Own Sailing Coach - Windward & Leeward
Jon Emmett, Be Your Own Sailing Coach - Windward & Leeward
Published: 2013/08/06
Channel: Fernhurst Books
Sailing to Windward and Basic Tacking
Sailing to Windward and Basic Tacking
Published: 2014/02/16
Channel: yeadonsailingclub
B&G RacePanel - Setting a Windward / Leeward Course
B&G RacePanel - Setting a Windward / Leeward Course
Published: 2015/08/06
Channel: B&G Sailing
Wind Loading Example: Calculating Pressure on Leeward Wall | Structural Design & Loading
Wind Loading Example: Calculating Pressure on Leeward Wall | Structural Design & Loading
Published: 2015/02/17
Channel: Spoon Feed Me
rachel n windward leeward
rachel n windward leeward
Published: 2012/05/11
Channel: Lakeland Schools
Leeward and Windward Islands of the Caribbean
Leeward and Windward Islands of the Caribbean
Published: 2011/08/11
Channel: TravelVideoSource
Windward Leeward Course -Part 16
Windward Leeward Course -Part 16
Published: 2008/09/11
Channel: ArmchairBinder
What Is The Windward And Leeward Side Of The Mountain?
What Is The Windward And Leeward Side Of The Mountain?
Published: 2017/08/23
Channel: Obu Obu
Windward to the Leeward Side - Sunrise to Sunset on Oahu, Hawaii
Windward to the Leeward Side - Sunrise to Sunset on Oahu, Hawaii
Published: 2016/08/01
Channel: Natasha
Sailing the Caribbean - Windward & Leeward Islands
Sailing the Caribbean - Windward & Leeward Islands
Published: 2010/12/12
Channel: Yacht Ibis Caribbean Adventure Sailing
Windward Leeward Course
Windward Leeward Course
Published: 2012/06/15
Channel: CostasJeab
Windward and Leeward Makeup
Windward and Leeward Makeup
Published: 2016/04/09
Channel: ameliorationmakeup
Jon Emmett on Windward and Leeward mark roundings
Jon Emmett on Windward and Leeward mark roundings
Published: 2010/11/12
Channel: jonemmettsailing
Windward vs. Leeward -  Lush Coconut Greenery
Windward vs. Leeward - Lush Coconut Greenery
Published: 2009/01/10
Channel: Steve and Camilla
HYC Opti Level 1 sailing windward/leeward course
HYC Opti Level 1 sailing windward/leeward course
Published: 2015/07/15
Channel: Oliver Ross
ISAF Rule 11 Windward Leeward -Part 10
ISAF Rule 11 Windward Leeward -Part 10
Published: 2008/09/11
Channel: ArmchairBinder
PBO ColRegs made simple No 3 - Sail meets Sail, Windward-Leeward
PBO ColRegs made simple No 3 - Sail meets Sail, Windward-Leeward
Published: 2012/05/22
Channel: practicalboatowner
WOT-TAC  Windward Leeward Course
WOT-TAC Windward Leeward Course
Published: 2012/03/16
Channel: wottac
JOHN CRUZ : "ISLAND STYLE" (1996)
JOHN CRUZ : "ISLAND STYLE" (1996)
Published: 2017/02/16
Channel: EMILIANO ECCO
The Windward & Leeward Islands ( 14 min excerpt of presentation)
The Windward & Leeward Islands ( 14 min excerpt of presentation)
Published: 2012/12/08
Channel: J Mollan
Likelike Highway from Windward to Leeward Side
Likelike Highway from Windward to Leeward Side
Published: 2015/07/06
Channel: Hugh Hazenfield
Windward Leeward series
Windward Leeward series
Published: 2016/10/09
Channel: Jim Laushway
Leeward Meaning
Leeward Meaning
Published: 2015/04/15
Channel: SDictionary
Laser Sailing Top Tips - Leeward mark rounding -  Double Olympic Gold Medallist Shirley Robertson
Laser Sailing Top Tips - Leeward mark rounding - Double Olympic Gold Medallist Shirley Robertson
Published: 2013/07/16
Channel: Royal Yachting Association - RYA
Windward Leeward series 2
Windward Leeward series 2
Published: 2016/10/09
Channel: Jim Laushway
Windward leeward racing 6/2/16
Windward leeward racing 6/2/16
Published: 2016/02/07
Channel: Andrew Dann
CSC and RMYC Combined 2 race Windward Leeward Race Day
CSC and RMYC Combined 2 race Windward Leeward Race Day
Published: 2011/12/18
Channel: ColorTileRacing
Windward and Leeward Mark Rounding- NNYC Laser Racing 8-6-2015
Windward and Leeward Mark Rounding- NNYC Laser Racing 8-6-2015
Published: 2015/08/24
Channel: TheNNYC
8/24/12 - Fleet; Sailing Windward-Leeward Course 1
8/24/12 - Fleet; Sailing Windward-Leeward Course 1
Published: 2012/09/01
Channel: SailingSonOfOdin
Windward island valcanoes vs Leeward hurricane at the Grenada national stadium 26 to 29 of October
Windward island valcanoes vs Leeward hurricane at the Grenada national stadium 26 to 29 of October
Published: 2017/10/10
Channel: bronson johnson
Windward leeward practice
Windward leeward practice
Published: 2009/10/12
Channel: pairsquared
Windward Oahu braces for rounds of rain, flooding
Windward Oahu braces for rounds of rain, flooding
Published: 2018/02/19
Channel: KHON2 News
Windward: Beginner Tutorial
Windward: Beginner Tutorial
Published: 2015/04/03
Channel: Michael Lyashenko
2017 LMYC windward leeward R1 2
2017 LMYC windward leeward R1 2
Published: 2017/10/21
Channel: JLBPHOTOS1
First race Lelystad Regatta 2017, windward / leeward full-length
First race Lelystad Regatta 2017, windward / leeward full-length
Published: 2017/10/04
Channel: Dirk Peter Bakker
Leeward genoa sheeting and transfer to Windward side
Leeward genoa sheeting and transfer to Windward side
Published: 2012/02/01
Channel: Tim Tavinor
windward hull vs leeward proa test 1
windward hull vs leeward proa test 1
Published: 2008/04/25
Channel: tsstproa
Windward Leeward Mar 7 2015
Windward Leeward Mar 7 2015
Published: 2015/03/25
Channel: SV Triffic
MY DRIVE FROM WINDWARD TO LEEWARD!!!
MY DRIVE FROM WINDWARD TO LEEWARD!!!
Published: 2013/09/01
Channel: Brandon Waipa
Cruising the Caribbean The Windward & Leeward Islands
Cruising the Caribbean The Windward & Leeward Islands
Published: 2017/06/15
Channel: Britanny R
Buffalo
Buffalo's Big Board Surfing Classic Day Two
Published: 2018/02/19
Channel: Surfline
Windward Seafaring Gameplay & Review - Editor
Windward Seafaring Gameplay & Review - Editor's Choice
Published: 2015/05/12
Channel: Gamers Nexus
Windward Leeward on a Santa Cruz 70
Windward Leeward on a Santa Cruz 70
Published: 2012/03/12
Channel: CGSailing
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WIKIPEDIA ARTICLE

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Example image showing definitions of windward (upwind) and leeward (downwind)

Windward (/ˈwɪndwərd/) is the direction upwind from the point of reference, alternatively the direction from which the wind is coming. Leeward (/ˈlwərd, ˈljərd/) is the direction downwind (or downward) from the point of reference. The leeward region of mountains generally remains dry as compared to the windward. The side of a ship that is towards the leeward is its lee side. If the vessel is heeling under the pressure of the wind, this will be the "lower side". During the age of sail, the term weather was used as a synonym for windward in some contexts, as in the weather gage.

Nautical and naval[edit]

Windward and leeward directions are important factors (points of sail) to consider when sailing a sailing ship. Other terms with broadly the same meaning are widely used, particularly upwind and downwind.[1]

The windward vessel is normally the more maneuverable vessel. For this reason, rule 12 of the International Regulations for Preventing Collisions at Sea stipulates that the windward vessel gives way to the leeward vessel.[2]

Naval warfare[edit]

In warfare, a square rigged warship would often try to enter battle from the windward direction (or "hold the weather gauge"), thus gaining an important tactical advantage over the opposing warship – the warship to windward could choose when to engage and when to withdraw. The opposing warship to leeward could often do little but comply without exposing itself unduly.[3]

This was particularly important once artillery was introduced to naval warfare. The ships heeled away from the wind so that the leeward vessel was exposing part of her bottom to shot.[4]

Meteorological significance[edit]

Leeward and windward refer respectively to what a game stalker would call downwind and upwind.[5] The terms are used by seamen in relation to their ships but also in reference to islands in an archipelago and to the different sides of a single island. In the latter case, the windward side is that side of an island subject to the prevailing wind, and is thus the wetter side (see orographic precipitation). The leeward side is the side protected by the elevation of the island from the prevailing wind, and is typically the drier side of an island. Thus, leeward or windward siting is an important weather and climate factor on oceanic islands.[6]

In the case of an archipelago, windward islands are upwind and leeward islands are the downwind ones.

The terms upwind and downwind[edit]

In these contexts the terms windward and layward are not used.

  • Hunting: In hunting, the animal that is downwind has an advantage. S/he can smell the upwind animal, but the reverse is not true. The downwind animal has the advantage of surprise when hunting the upwind animal.
  • Architecture and urban planning: Part of a house, or a community, is located upwind of something downwind that is malodorous — an outhouse, a garbage dump, a feedlot, a factory or meatpacker. It is sometimes the case that part of a house or a community, or sometimes the entire house or community, will be downwind of some pleasant odor. These odors are either plant-based — flowers, fruit or flowering trees, forests —, or moving water — rivers, waves, rain. The water itself has no odor, but liquids mixed with or solids dissolved in do, and rivers, which as a bonus can have nice sounds, and never have unpleasant sound.

See also[edit]

References[edit]

  1. ^ Patrick M. Royce (1 April 1993). Royce's Sailing Illustrated Course: Provides Lectures That Can Be Read Word for Word. ProStar Publications. pp. 11–. ISBN 978-0-911284-01-0. 
  2. ^ Navigators International Rules of the Road' 1998 Ed. Rex Bookstore, Inc. pp. 73–. ISBN 978-971-23-2239-6. 
  3. ^ David Childs (30 April 2014). The Warship Mary Rose: The Life and Times of King Henry VII's Flagship. Seaforth Publishing. pp. 127–. ISBN 978-1-4738-5285-3. 
  4. ^ Sam Willis (2008). Fighting at Sea in the Eighteenth Century: The Art of Sailing Warfare. Boydell Press. pp. 152–. ISBN 978-1-84383-367-3. 
  5. ^ E. B. Michell (22 December 2015). The Art and Practice of Hawking. Read Books Limited. pp. 250–. ISBN 978-1-4733-6546-9. 
  6. ^ Michael Pidwirny (5 September 2016). Glossary of Terms for Physical Geography. Our Planet Earth Publishing. pp. 286–. ISBN 978-0-9877029-0-6. 

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