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    Question of the Day?
    4851 Posts ยท 73 Followers ยท 317 Photos ยท 12505 Likes
    Began 3 years ago by
    Captain
    United Kingdom
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    Latest Post 6 hours ago by
    Lieutenant
    United Kingdom

    New question in 9 hours, 6 minutes
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    In advanced ship hydrodynamics, which of the following hull forms is specifically designed to maximise 'glide' by minimising wave-making resistance at moderate speeds, thereby allowing the vessel to travel efficiently with minimal propulsion input?

    A. A slender, canoe-shaped displacement hull with a fine entry and long waterline
    B. A deep-V planing hull with pronounced chines
    C. A bluff-bowed, full-form cargo ship hull
    D. A flat-bottomed barge hull with a wide beam

    Select your answer above. Good luck!

    Members who have participated in the last 30 days
    Position User Score Correct Incorrect Unanswered
    1 RonH 100% 30 0 0
    1 AlessandroSPQR 100% 30 0 0
    1 Steves-s 100% 30 0 0
    2 RossM 97% 29 1 0
    2 Rowen 97% 29 1 0
    2 EdW 97% 29 1 0
    2 SimpleSailor 97% 29 0 1
    3 GARTH 93% 28 1 1
    3 Newby7 93% 28 2 0
    3 RNinMunich 93% 28 2 0
    3 roycv 93% 28 2 0
    3 Nickthesteam 93% 28 2 0
    4 luckyduck 90% 27 3 0
    4 TonyAsh 90% 27 3 0
    4 jonbliss152 90% 27 2 1
    5 ekoral 87% 26 3 1
    5 Harwind 87% 26 4 0
    5 Bryan-the-pirate 87% 26 3 1
    6 SouthportPat 83% 25 5 0
    6 PhilH 83% 25 5 0
    6 DuncanP 83% 25 3 2
    7 Lauriem 80% 24 1 5
    7 Rockbag 80% 24 6 0
    7 AndyN 80% 24 6 0
    8 Oxford-Dave 77% 23 6 1
    9 LeeA 73% 22 4 4
    10 hermank 70% 21 4 5
    11 thadlietz 67% 20 4 6
    11 Alan R 67% 20 5 5
    12 holdenon 60% 18 2 10
    13 BOATSHED 50% 15 1 14
    14 Peter47 47% 14 9 7
    14 RubaDub 47% 14 3 13
    15 paulc3 37% 11 3 16
    16 AustinG 27% 8 5 17
    17 Steve P 23% 7 1 22
    18 neilw 20% 6 0 24
    19 jumpugly 13% 4 1 25
    20 GaryLC 10% 3 1 26
    21 Wolle 7% 2 5 23
    21 fireboat 7% 2 1 27
    22 chugalone100 3% 1 0 29
    22 Steamrod 3% 1 0 29
    22 EdwardC 3% 1 0 29
    22 jacko 3% 1 0 29
    22 Stephen T 3% 1 1 28
    22 Hhager2 3% 1 1 28
    23 cjanik001 0% 0 2 28
    23 ravenstruther 0% 0 1 29
    23 Redpopman 0% 0 1 29
    23 Silvermerlin 0% 0 1 29
    Show More
    PhilH
    Lieutenant
    ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    ๐Ÿ“ Question of the Day?
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    Online: 29 minutes ago
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    Hi guys could have been any one of a b or c but got it wrong thinking by now they have perfected container ships to glide through the sea ha ho try tomorrow.
    Philuk๐Ÿ‘
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    Steves-s
    Chief Petty Officer 2nd Class
    ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    ๐Ÿ“ Question of the Day?
    24 Views ยท 3 Likes
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
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    It just goes to show that the American red Indians and the Eskimos knew all about hydrodynamics many years ago well before the Oxford and Cambridge universities got involved with racing ๐Ÿ™„๐Ÿค—.
    I have watched "The last of the Mohicans" several times over the years with quite a lot canoes involved. โ˜บ.
    All down hill from now on.๐Ÿ˜ฎ.
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    RNinMunich
    Fleet Admiral
    ๐Ÿ‡ฉ๐Ÿ‡ช Germany
    ๐Ÿ“ Question of the Day?
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    Country: ๐Ÿ‡ฉ๐Ÿ‡ช Germany
    Online: 12 hours ago
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    Pook๐Ÿฑ Back to the 30 day trudgeโ˜น๏ธ

    ๐Ÿ˜Ž
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    Young at heart ๐Ÿ˜‰ Slightly older in other places.๐Ÿ˜Š Cheers Doug
    GARTH
    Captain
    ๐Ÿ‡จ๐Ÿ‡ฆ Canada
    ๐Ÿ“ Question of the Day?
    35 Views ยท 3 Likes
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    I could not answer the question until today, as I was sailing my Jimwilder Tug in Spencer's pool last night and forgot about the question of the day that was yesterday
    RossM
    Captain
    ๐Ÿ‡จ๐Ÿ‡ฆ Canada
    ๐Ÿ“ Question of the Day?
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    I think the answer would have been better if AND UPRIGHT had been left out or changed to TO FACILITATE UPRIGHTING
    Force nothing, waste nothing, leave nothing undone
    luckyduck
    Lieutenant
    ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    ๐Ÿ“ Question of the Day?
    36 Views ยท 3 Likes
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    Capsize and upright are totally contradictory - a capsize means that you have gone over so far sideways that the lower gunwhale is under water. Although there are plenty of times when planing at full power that I have had so much water flying over me when hiking out, that it feels that I am under water!!
    roycv
    Admiral
    ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    ๐Ÿ“ Question of the Day?
    36 Views ยท 3 Likes
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
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    I guess this nearly correct answer is where AI extrapolates from it's data a possible reason why the dinghy needs bouyancy. Those that have sailed dinghys will have experienced a capsize.

    I remember going through the capsize drill in the Solent in April and not a very warm one either.

    Roy
    SimpleSailor
    Lieutenant
    ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    ๐Ÿ“ Question of the Day?
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    I capsized many times when learning to sail and not once did it remain upright or self right. We always had to climb on the side and pull it upright, and as it rolled clamber inside. That is assuming upright means the mast is pointing toward the sky.
    EdW
    Commander
    ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    ๐Ÿ“ Question of the Day?
    38 Views ยท 5 Likes
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
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    A dingy without buoyancy is basically a bath with sails ๐Ÿคฃ
    Steves-s
    Chief Petty Officer 2nd Class
    ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    ๐Ÿ“ Question of the Day?
    39 Views ยท 2 Likes
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
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    This buoyancy standards question took me so long that my phone shut down twice ๐Ÿค• before I had the chance to put in my answer, probably quite an easy one for anyone who actually sails yachts ๐Ÿ˜.
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