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  1. #11
    Join Date
    Aug 2009
    Posts
    244

    Default Re: Need help: 42 feet fly ridge with 4.3 meter air draft on Thames

    Not clear what you mean by 'hard canopy'. What class of boat is she? I have a minimum air draught of 3.63 Mt and go out to sea at least twice a year.
    You just need to time your exit from Teddington to make sure the height at the bridge is OK., as stated earlier its not generally a problem unless at HWS.

  2. #12
    Join Date
    Jul 2001
    Location
    Just a few cables from Boulters Lock
    Posts
    12,592

    Default Re: Need help: 42 feet fly ridge with 4.3 meter air draft on Thames

    Quote Originally Posted by Lucas Gan View Post
    Thanks mates.
    I am not really planning a trip yet. Just struggling whether or not to put that hard canopy back to the stern to make her 4.3 metres high. The hard canopy now tie on top of the bow due to last year transport from Scotland by lorry. The air draft now is 3.5 metres without the canopy on stern.
    Must confess to being puzzled by your reference to the “hard canopy” - a picture would be helpful as would be telling us make and model of boat. Suspect your lack of knowledge re tide levels etc is frightening you when there is no need for concern.

  3. #13
    Join Date
    Oct 2018
    Posts
    71

    Default Re: Need help: 42 feet fly ridge with 4.3 meter air draft on Thames

    Thanks mates. The two pictures below shows the hard canopy on the bow now due to transport. And the other one show originally should be. Hope this make clear.

    IMG_20190901_182215263.jpg

    Screenshot_20190901-182529.jpg

  4. #14
    Join Date
    Oct 2018
    Posts
    71

    Default Re: Need help: 42 feet fly ridge with 4.3 meter air draft on Thames

    The boat is Cruiser Yatchs 3850. Her original air draft about 5.2 metres. It can lower to around 4.3 metres by removing the antenna arch. But I am afraid 4.3 metres still too high. Very struggling!

  5. #15
    Join Date
    Nov 2001
    Location
    Medway
    Posts
    19,987

    Default Re: Need help: 42 feet fly ridge with 4.3 meter air draft on Thames

    saw your boat just downstream after leaving Lady Lyndsies.
    Hard to miss

  6. #16
    Join Date
    Aug 2009
    Posts
    244

    Default Re: Need help: 42 feet fly ridge with 4.3 meter air draft on Thames

    By the look of her I would say she is no higher than a lot of flybridge boats which manage to negotiate Hammersmith Bridge. Talk to some owners of similar vessels, I'm sure you'll find a positive outcome.

  7. #17
    Join Date
    Jun 2001
    Location
    N Hampshire
    Posts
    1,970

    Default Re: Need help: 42 feet fly ridge with 4.3 meter air draft on Thames

    Sounds like a wind up to me?
    Boat is moored just below Desborough Cut, Shepperton.
    No seriously low bridges on non tidal Thames to Teddington.
    For Hammersmith Bridge, do your home work and work out when sufficient depth and height. Not rocket science.

  8. #18
    Join Date
    Oct 2018
    Posts
    71

    Default Re: Need help: 42 feet fly ridge with 4.3 meter air draft on Thames

    Thanks mates.

    To be honest I only drive the boat several times between Shepperton lock to Sunbury lock, never go out of these two locks yet because she is messy inside out since delivery last year winter. I recently finally have some time to work on it , so first thing is the canopy should back to the stern. To do that, I will have to drive her to Shepperton marina. Problem is people told me I might not be able to get out from Shepperton marina once the canopy installed because the bridge in front of the marina just about 4 metres high. Then I get to the bridge in front of the marina to measure the air draft. It seems some where between okay or not okay depends on the tide.

    Then some people also told me that I should not install that canopy at all because they said some of the bridges on the up on Thames are less than 4 metres. This make me start to think of the bridges high on the river. Then I downloaded the App call RiverThanesGuildeLife to check. Then found the bridge Hammersmith (Sounth) only 3.5 metres! And the Windsor Bridge only 4 metres. These make me fear my boat might trap between these two bridges if the canopy is on.

    Sorry for my leak of knowledge on the boating and the Thames! I really start from scratch! Thanks for so much for your understanding and support!
    Last edited by Lucas Gan; 03-09-19 at 00:02.

  9. #19
    Join Date
    Aug 2009
    Posts
    244

    Default Re: Need help: 42 feet fly ridge with 4.3 meter air draft on Thames

    Seems to me you may have bought the wrong boat. Are you sure your minimum air draught is over 4 m.?
    If so then you will not be able to go very far.
    Cookham cut bridge is 12ft6ins and Culham is 12ft5ins.
    I would look around the marinas and talk to people with similar boats. Also take a tape measure and get a accurate measurement.

  10. #20
    Join Date
    Aug 2009
    Posts
    244

    Default Re: Need help: 42 feet fly ridge with 4.3 meter air draft on Thames

    Looking at the photos it seems to me if you leave the stern sunshade off, and adapt the radar arch to hinge down you may be OK. It doesn't look like over 4m trying to judge from the pics.

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