Answers.Body: <p>It looks like the simpler problem would be to evaluate the boat hulls you could possibly find to see if any would displace 485 grams of water with enough free board to stay afloat.</p>
  <p>Here is a list of all of the unique boat hulls I could find on bricklink that looked to me likely to hold water:</p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=28533&amp;name=Boat%20Hull%20Unitary%2016%20x%208%20Base&amp;category=%5BBoat%5D" rel="nofollow noreferrer">Boat Hull Unitary 16 x 8 Base</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=71958c01&amp;name=Boat%20Hull%20Unitary%2022%20x%208%20x%202%201/3%20(Set%206429)&amp;category=%5BBoat%5D" rel="nofollow noreferrer">Boat Hull Unitary 22 x 8 x 2 1/3 (Set 6429)</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=bfloat1c01pb01&amp;name=Boat%20Hull%20Unitary%2024%20x%206%20x%203%20with%20Red%20and%20White%20Racing%20Stripes%20Pattern%20on%20Both%20Sides%20(Stickers)%20-%20Set%204002&amp;category=%5BBoat%5D" rel="nofollow noreferrer">Boat Hull Unitary 24 x 6 x 3 with Red and White Racing Stripes Pattern on Both Sides (Stickers) - Set 4002</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=bfloat2c01pb02&amp;name=Boat%20Hull%20Unitary%2025%20x%2010%20x%204%201/3%20with%204010%20and%20Police%20Pattern%20(Stickers)%20-%20Set%204010&amp;category=%5BBoat%5D" rel="nofollow noreferrer">Boat Hull Unitary 25 x 10 x 4 1/3 with 4010 and Police Pattern (Stickers) - Set 4010</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=92710&amp;name=Boat%20Hull%20Unitary%2028%20x%208%20Base&amp;category=%5BBoat%5D" rel="nofollow noreferrer">Boat Hull Unitary 28 x 8 Base</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=71610&amp;name=Boat%20Hull%20Unitary%2032%20x%2010%20x%201%202/3,%20Base&amp;category=%5BBoat%5D" rel="nofollow noreferrer">Boat Hull Unitary 32 x 10 x 1 2/3, Base</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=47859&amp;name=Boat%20Hull%20Unitary%2032%20x%2012%20x%204,%20Base&amp;category=%5BBoat%5D" rel="nofollow noreferrer">Boat Hull Unitary 32 x 12 x 4, Base</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=bfloat3c01&amp;name=Boat%20Hull%20Unitary%2038%20x%2010%20x%205%202/3&amp;category=%5BBoat%5D" rel="nofollow noreferrer">Boat Hull Unitary 38 x 10 x 5 2/3</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=23997c01&amp;name=Boat%20Hull%20Unitary%2041%20x%2012%20x%205%20with%20Light%20Bluish%20Gray%20Top&amp;category=%5BBoat%5D" rel="nofollow noreferrer">Boat Hull Unitary 41 x 12 x 5 with Light Bluish Gray Top</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=50821&amp;name=Boat%20Hull%20Unitary%2048%20x%206%20x%205,%20Base%20(Catamaran%20Half)&amp;category=%5BBoat%5D" rel="nofollow noreferrer">Boat Hull Unitary 48 x 6 x 5, Base (Catamaran Half)</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=62791&amp;name=Boat%20Hull%20Unitary%2051%20x%2012%20x%206%20with%20Side%20Bulges,%20Base&amp;category=%5BBoat%5D" rel="nofollow noreferrer">Boat Hull Unitary 51 x 12 x 6 with Side Bulges, Base</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=54100&amp;name=Boat%20Hull%20Unitary%2051%20x%2012%20x%206,%20Base&amp;category=%5BBoat%5D" rel="nofollow noreferrer">Boat Hull Unitary 51 x 12 x 6, Base</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=bfloat4c01&amp;name=Boat%20Hull%20Unitary%2052%20x%2012%20x%206%201/3&amp;category=%5BBoat%5D" rel="nofollow noreferrer">Boat Hull Unitary 52 x 12 x 6 1/3</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=30215&amp;name=Boat%20Hull%20Unitary%2052%20x%2016%20x%205,%20Base&amp;category=%5BBoat%5D" rel="nofollow noreferrer">Boat Hull Unitary 52 x 16 x 5, Base</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=57789&amp;name=Boat%20Hull%20Unitary%2074%20x%2018%20x%207,%20Base&amp;category=%5BBoat%5D" rel="nofollow noreferrer">Boat Hull Unitary 74 x 18 x 7, Base</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=13537&amp;name=Duplo,%20Boat%20Hull%2010%20x%2018%20Bottom%20Section&amp;category=%5BDuplo,%20Boat%5D" rel="nofollow noreferrer">Duplo, Boat Hull 10 x 18 Bottom Section</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=54070&amp;name=Duplo,%20Boat%20Hull%2012%20x%2024%20Bottom%20Section&amp;category=%5BDuplo,%20Boat%5D" rel="nofollow noreferrer">Duplo, Boat Hull 12 x 24 Bottom Section</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=54850&amp;name=Duplo,%20Boat%20Hull%2014%20x%2027%20Bottom%20Section&amp;category=%5BDuplo,%20Boat%5D" rel="nofollow noreferrer">Duplo, Boat Hull 14 x 27 Bottom Section</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=dupboat04&amp;name=Duplo,%20Boat%20Hull%206%20x%2016%20with%204%20x%204%20Cargo%20Hold%20with%20Green%20Bottom&amp;category=%5BDuplo,%20Boat%5D" rel="nofollow noreferrer">Duplo, Boat Hull 6 x 16 with 4 x 4 Cargo Hold with Green Bottom</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=15576&amp;name=Duplo,%20Boat%20Hull%207%20x%2012%20Bottom%20Section&amp;category=%5BDuplo,%20Boat%5D" rel="nofollow noreferrer">Duplo, Boat Hull 7 x 12 Bottom Section</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=dupboat03c01&amp;name=Duplo,%20Boat%20Hull%208%20x%2015%20Deck%20Studs%20with%20Red%20Bottom&amp;category=%5BDuplo,%20Boat%5D" rel="nofollow noreferrer">Duplo, Boat Hull 8 x 15 Deck Studs with Red Bottom</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=dupboat05c01&amp;name=Duplo,%20Boat%20Hull%208%20x%2017%20with%20Police%20Pattern&amp;category=%5BDuplo,%20Boat%5D" rel="nofollow noreferrer">Duplo, Boat Hull 8 x 17 with Police Pattern</a></p>
  <p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=4787&amp;name=Fabuland%20Boat%20Hull%20Large&amp;category=%5BFabuland%5D" rel="nofollow noreferrer">Fabuland Boat Hull Large</a></p>
  <p>There are over 200 variations of these parts with colors and prints. Have fun!</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-04-09T05:57:19.810Z
Answers.Text: can you shorten that list, if there are over 200 then just send one link for all of them
Answers.UserDisplayName: mindstormsboi
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-04-09T13:17:38.107Z
Answers.Text: How about the old buildable boat hull parts such as https://www.bricklink.com/v2/catalog/catalogitem.page?P=x145c01&idColor=5 + https://www.bricklink.com/v2/catalog/catalogitem.page?P=x146c01&idColor=5 + https://www.bricklink.com/v2/catalog/catalogitem.page?P=x147c01&idColor=5 ?
Answers.UserDisplayName: Angew is no longer proud of SO
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-04-09T13:28:25.707Z
Answers.Text: The OP asked for unitary hulls, not buildable ones.
Answers.UserDisplayName: chicks
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-04-09T02:38:30.653Z
Answers.LastActivityDate: 2021-04-09T18:57:01.110Z
Answers.LastEditDate: 2021-04-09T18:57:01.110Z
Answers.UserDisplayName: Dan1138
Body: <p>I'm building a boat model out of LEGO and I need to decide which boat hull to use. I need the smallest that can carry 485g of load. Where can I get information about water displacement of unitary LEGO boat hulls? I can compute upper bound based on the dimensions, but I'm afraid that will be a big overestimate.</p>
  
Tags: <piece-information><water><boat>
Title: What is water displacement value for LEGO solid hulls?
UserDisplayName: kjam
ThreadText: # What is water displacement value for LEGO solid hulls?
  
  (Asked by: username_0 on 2021-04-08)
  
  I'm building a boat model out of LEGO and I need to decide which boat hull to use. I need the smallest that can carry 485g of load. Where can I get information about water displacement of unitary LEGO boat hulls? I can compute upper bound based on the dimensions, but I'm afraid that will be a big overestimate.
  
  **Tags:** piece-information, water, boat
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2021-04-09. Score: 1
  
  It looks like the simpler problem would be to evaluate the boat hulls you could possibly find to see if any would displace 485 grams of water with enough free board to stay afloat.
  
  Here is a list of all of the unique boat hulls I could find on bricklink that looked to me likely to hold water:
  
  [Boat Hull Unitary 16 x 8 Base](https://www.bricklink.com/v2/catalog/catalogitem.page?P=28533&name=Boat%20Hull%20Unitary%2016%20x%208%20Base&category=%5BBoat%5D)
  
  [Boat Hull Unitary 22 x 8 x 2 1/3 (Set 6429)](https://www.bricklink.com/v2/catalog/catalogitem.page?P=71958c01&name=Boat%20Hull%20Unitary%2022%20x%208%20x%202%201/3%20(Set%206429)&category=%5BBoat%5D)
  
  [Boat Hull Unitary 24 x 6 x 3 with Red and White Racing Stripes Pattern on Both Sides (Stickers) - Set 4002](https://www.bricklink.com/v2/catalog/catalogitem.page?P=bfloat1c01pb01&name=Boat%20Hull%20Unitary%2024%20x%206%20x%203%20with%20Red%20and%20White%20Racing%20Stripes%20Pattern%20on%20Both%20Sides%20(Stickers)%20-%20Set%204002&category=%5BBoat%5D)
  
  [Boat Hull Unitary 25 x 10 x 4 1/3 with 4010 and Police Pattern (Stickers) - Set 4010](https://www.bricklink.com/v2/catalog/catalogitem.page?P=bfloat2c01pb02&name=Boat%20Hull%20Unitary%2025%20x%2010%20x%204%201/3%20with%204010%20and%20Police%20Pattern%20(Stickers)%20-%20Set%204010&category=%5BBoat%5D)
  
  [Boat Hull Unitary 28 x 8 Base](https://www.bricklink.com/v2/catalog/catalogitem.page?P=92710&name=Boat%20Hull%20Unitary%2028%20x%208%20Base&category=%5BBoat%5D)
  
  [Boat Hull Unitary 32 x 10 x 1 2/3, Base](https://www.bricklink.com/v2/catalog/catalogitem.page?P=71610&name=Boat%20Hull%20Unitary%2032%20x%2010%20x%201%202/3,%20Base&category=%5BBoat%5D)
  
  [Boat Hull Unitary 32 x 12 x 4, Base](https://www.bricklink.com/v2/catalog/catalogitem.page?P=47859&name=Boat%20Hull%20Unitary%2032%20x%2012%20x%204,%20Base&category=%5BBoat%5D)
  
  [Boat Hull Unitary 38 x 10 x 5 2/3](https://www.bricklink.com/v2/catalog/catalogitem.page?P=bfloat3c01&name=Boat%20Hull%20Unitary%2038%20x%2010%20x%205%202/3&category=%5BBoat%5D)
  
  [Boat Hull Unitary 41 x 12 x 5 with Light Bluish Gray Top](https://www.bricklink.com/v2/catalog/catalogitem.page?P=23997c01&name=Boat%20Hull%20Unitary%2041%20x%2012%20x%205%20with%20Light%20Bluish%20Gray%20Top&category=%5BBoat%5D)
  
  [Boat Hull Unitary 48 x 6 x 5, Base (Catamaran Half)](https://www.bricklink.com/v2/catalog/catalogitem.page?P=50821&name=Boat%20Hull%20Unitary%2048%20x%206%20x%205,%20Base%20(Catamaran%20Half)&category=%5BBoat%5D)
  
  [Boat Hull Unitary 51 x 12 x 6 with Side Bulges, Base](https://www.bricklink.com/v2/catalog/catalogitem.page?P=62791&name=Boat%20Hull%20Unitary%2051%20x%2012%20x%206%20with%20Side%20Bulges,%20Base&category=%5BBoat%5D)
  
  [Boat Hull Unitary 51 x 12 x 6, Base](https://www.bricklink.com/v2/catalog/catalogitem.page?P=54100&name=Boat%20Hull%20Unitary%2051%20x%2012%20x%206,%20Base&category=%5BBoat%5D)
  
  [Boat Hull Unitary 52 x 12 x 6 1/3](https://www.bricklink.com/v2/catalog/catalogitem.page?P=bfloat4c01&name=Boat%20Hull%20Unitary%2052%20x%2012%20x%206%201/3&category=%5BBoat%5D)
  
  [Boat Hull Unitary 52 x 16 x 5, Base](https://www.bricklink.com/v2/catalog/catalogitem.page?P=30215&name=Boat%20Hull%20Unitary%2052%20x%2016%20x%205,%20Base&category=%5BBoat%5D)
  
  [Boat Hull Unitary 74 x 18 x 7, Base](https://www.bricklink.com/v2/catalog/catalogitem.page?P=57789&name=Boat%20Hull%20Unitary%2074%20x%2018%20x%207,%20Base&category=%5BBoat%5D)
  
  [Duplo, Boat Hull 10 x 18 Bottom Section](https://www.bricklink.com/v2/catalog/catalogitem.page?P=13537&name=Duplo,%20Boat%20Hull%2010%20x%2018%20Bottom%20Section&category=%5BDuplo,%20Boat%5D)
  
  [Duplo, Boat Hull 12 x 24 Bottom Section](https://www.bricklink.com/v2/catalog/catalogitem.page?P=54070&name=Duplo,%20Boat%20Hull%2012%20x%2024%20Bottom%20Section&category=%5BDuplo,%20Boat%5D)
  
  [Duplo, Boat Hull 14 x 27 Bottom Section](https://www.bricklink.com/v2/catalog/catalogitem.page?P=54850&name=Duplo,%20Boat%20Hull%2014%20x%2027%20Bottom%20Section&category=%5BDuplo,%20Boat%5D)
  
  [Duplo, Boat Hull 6 x 16 with 4 x 4 Cargo Hold with Green Bottom](https://www.bricklink.com/v2/catalog/catalogitem.page?P=dupboat04&name=Duplo,%20Boat%20Hull%206%20x%2016%20with%204%20x%204%20Cargo%20Hold%20with%20Green%20Bottom&category=%5BDuplo,%20Boat%5D)
  
  [Duplo, Boat Hull 7 x 12 Bottom Section](https://www.bricklink.com/v2/catalog/catalogitem.page?P=15576&name=Duplo,%20Boat%20Hull%207%20x%2012%20Bottom%20Section&category=%5BDuplo,%20Boat%5D)
  
  [Duplo, Boat Hull 8 x 15 Deck Studs with Red Bottom](https://www.bricklink.com/v2/catalog/catalogitem.page?P=dupboat03c01&name=Duplo,%20Boat%20Hull%208%20x%2015%20Deck%20Studs%20with%20Red%20Bottom&category=%5BDuplo,%20Boat%5D)
  
  [Duplo, Boat Hull 8 x 17 with Police Pattern](https://www.bricklink.com/v2/catalog/catalogitem.page?P=dupboat05c01&name=Duplo,%20Boat%20Hull%208%20x%2017%20with%20Police%20Pattern&category=%5BDuplo,%20Boat%5D)
  
  [Fabuland Boat Hull Large](https://www.bricklink.com/v2/catalog/catalogitem.page?P=4787&name=Fabuland%20Boat%20Hull%20Large&category=%5BFabuland%5D)
  
  There are over 200 variations of these parts with colors and prints. Have fun!
  
  > **Comments:**
  > **username_2**: can you shorten that list, if there are over 200 then just send one link for all of them  
  > **username_3**: How about the old buildable boat hull parts such as https://www.bricklink.com/v2/catalog/catalogitem.page?P=x145c01&idColor=5 + https://www.bricklink.com/v2/catalog/catalogitem.page?P=x146c01&idColor=5 + https://www.bricklink.com/v2/catalog/catalogitem.page?P=x147c01&idColor=5 ?  
  > **username_4**: The OP asked for unitary hulls, not buildable ones.  
  
  ---
  
  