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    Brave Class Transom Flaps
    6 Posts ยท 2 Followers ยท 1 Photo ยท 5 Likes
    Began 8 months ago by
    Able Seaman
    United Kingdom
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    Latest Post 8 months ago by
    Able Seaman
    United Kingdom
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    MSJB
    Able Seaman
    ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    ๐Ÿ“ Brave Class Transom Flaps
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    Online: 6 months ago
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    @hermank well Iโ€™m new to this forum so I may have screwed up being on the learning curve ๐Ÿคฃ. It was thanking you for your kind offer of the plans, and to cover any shipping costs you may incur ๐Ÿ˜Š.
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    hermank
    Captain
    ๐Ÿ‡ง๐Ÿ‡ช Belgium
    ๐Ÿ“ Brave Class Transom Flaps
    39 Views ยท 1 Like
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    Online: 11 hours ago
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    MSJB a good evening
    I havenโ€™t noticed a PM
    No problem there are no secrets
    Regards
    Herman
    MSJB
    Able Seaman
    ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    ๐Ÿ“ Brave Class Transom Flaps
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    Online: 6 months ago
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    @hermank that is very kind of you ๐Ÿ˜Š. I have sent sent you a PM.
    hermank
    Captain
    ๐Ÿ‡ง๐Ÿ‡ช Belgium
    ๐Ÿ“ Brave Class Transom Flaps
    45 Views ยท 1 Like
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    Country: ๐Ÿ‡ง๐Ÿ‡ช Belgium
    Online: 11 hours ago
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    MJSB a good afternoon
    I have made the Perkasa and gave it to a friend including all the pictures, plans and booklet.I will see him on Sunday during our last event. I can sent you pictures of the wanted details early next week
    If is that ok for you
    Regards
    Herman
    Chum444
    Midshipman
    ๐Ÿ‡บ๐Ÿ‡ธ United States
    ๐Ÿ“ Brave Class Transom Flaps
    42 Views ยท 1 Like
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    Trim tabs are typically operated hydraulically Hard to tell for certain in your photo but those tabs appear to be fixed in their position.
    MSJB
    Able Seaman
    ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    ๐Ÿ“ Brave Class Transom Flaps
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
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    Hey all, Iโ€™m building a 1/24 Brave Borderer from a Perkasa kit which is extremely basic for my ambitions, but Iโ€™ll be scratchbuilding and engineering a lot of it.

    I wonder if anyone here can tell me anything I canโ€™t find on tโ€™internet about the transom mounted trim flap on these beauties? I can find plenty of low resolution photos, and a description of the angle to which they were set in different sea states, but I just canโ€™t see how they operated mechanically.

    There are three exhaust port covers, sometimes called transom flaps (because theyโ€™re flaps and on the transom I guess ๐Ÿคฆโ€โ™‚๏ธ), but those arenโ€™t what Iโ€™m wondering about.

    Then thereโ€™s a shelf below those with a compound curve underside.

    Then thereโ€™s what looks to be a single, hinged trim tab or flap at the bottom of the transom, which appears to be the hydrodynamic control surface that trims the boat on the plane.

    I can see two actuator rods between the shelf and the trim tab, but in different photos the shelf is at different angles, horizontal in this photo. What I donโ€™t know is whether the shelf angle was fixed (what I suspect from the apparent construction) but varied at different periods or between different vessels, or whether this shelf was articulated up and down with the trim tab.

    Oh, and judging by the position of the ensign staff holder and the prop handedness, this photo appears to have been mirrored.

    Has anyone got any ideas how the trim flap was articulated? Or got any suggestions where I might find out more?



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