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    Registered
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    kevinsharpe
    Member Stats
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    Member No.#1276
    Registered๐Ÿ“…28th Nov 2010
    Last Online๐Ÿ“…1st Jun 2020
    City๐Ÿ“Merseyside
    Country๐Ÿ‡ฌ๐Ÿ‡งUnited Kingdom
    Genderโ™‚๏ธMale
    Age๐Ÿ‘ถNot Provided
    Posts๐Ÿ’ฌ33
    Followers๐Ÿ“ฃ0
    Likes Received๐Ÿ‘40

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    Recent Activity
    Liked Norstar Wave Rider 6 months ago
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    Liked The Vosper 46โ€ RAF Crash Tender Kit By Vintage Model Works 2 years ago
    Liked Aerokits fire boat 35" 2 years ago
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    Liked quick voyage around Poole lake 5 years ago
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    Recent Posts
    ๐Ÿ’ฌ Re: Formers and stringers
    22 days ago by kevinsharpe ( Master Seaman)
    Flag
    Nice clean work. I like the way you have pinned the top stringer to the bow hook while gluing/building. Never thought of doing it that way. Great idea,
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    ๐Ÿ“ RAF Crash Tender - 34" Aerokits - mid deck camber or flat?
    4 months ago by kevinsharpe ( Master Seaman)
    Flag
    Hi just to add to the debate. When I was a youngster my brother and I owned. Victory Industries RAF Crash Tender such as your model. The mid deck was most definitely curved. Some years ago I re visited my past and bought an old Victory Industries Crash Tender and the mid deck between the cabins is curved. I suppose it depended on the the faithful reproduction that the model was. I have to say it was a good scale model of the real vessel.

    Regards

    Kevin
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    ๐Ÿ“ twin propeller setup
    5 months ago by kevinsharpe ( Master Seaman)
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    Hi

    I guess you would have had to try the boat with one of the props contra rotating, you may well have seen an increase in speed and thrust. Also the more course the prop, the more critical the effect of loss of water pressure caused by the other and the greater effect of cavitation .

    Regards

    Kevin
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    ๐Ÿ“ twin propeller setup
    5 months ago by kevinsharpe ( Master Seaman)
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    Hi Doug

    Yes I get the point you make re torque cancellation. The other reason for contra rotation in twin props is the prevention of cavitation of the props. This would occur when one of the props suckswater away from the other. This creates a reduction in pressure around the starved prop resulting in water boiling around the prop blades due to pressure reduction and causing damage and pitting to the prop.

    Regards

    Kevin
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    ๐Ÿ“ twin propeller setup
    5 months ago by kevinsharpe ( Master Seaman)
    Flag
    Hi John.
    Just ad the spec on the component shop p94. You can use tank steering as the device has two speed controllers in built, but you need to have two channels for this i.e. One channel for each motor.

    Regards

    Kevin
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    ๐Ÿ“ twin propeller setup
    5 months ago by kevinsharpe ( Master Seaman)
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    Hi John

    The purpose of having left hand and right hand props installed on a twin screw vessel is in order to stop one propellor sucking water away from the other, therefore making one of the props inefficient by starving it of water that it needs to develop thrust. The set up should ensure that each rotates throwing water inwards towards the keel. Even though the props are handed differently and rotate in opposite directions they should both be pushing the vessel ahead or astern together. The motors can be controlled by one speed controller, ahead or astern but with one esc both motors will move ahead or astern together and at the same speed as they both receive the same command from the esc and you only need one channel to achieve this. Alternatively you can use two esc's one for each motor and control them independently and create ' tank steering' two channelsare required for this set up, one for each esc. The component shop device uses one channel to control both motors, along with a feed from the rudder channel. When rudder is applied then the mixing part of the unit slows one of the motors to allow the vessel to turn. The disadvantage is that you reduce the speed of one of the motors on the inside of the turn and therefore the vessel will lose speed. Using this controller does create a type of tank steering but I don't think you can turn on the spot i.e. One motor virtually full ahead and the other full astern.

    Hope this helps.

    Regards

    Kevin
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    ๐Ÿ’ฌ Re: Fairey Spearfish
    6 months ago by kevinsharpe ( Master Seaman)
    Flag
    Hi
    Nice boat and quite rare. I believe it to be made from the Nor Star range of wooden kits. She is I think she is Wave Rider. Nor Star also made a slightly larger cabin cruiser called Wave Princess. Both look great on the water and there is film of them on U Tube. Enjoy the model. Would suit a brushless motor and either Lipo cells or Nickel metal hydride.

    Regards

    Kevin
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    ๐Ÿ“ Electronics 43x esc
    11 months ago by kevinsharpe ( Master Seaman)
    Flag
    Hi. These speed controllers are really excellent quality and can handle a high degree of voltage and amps. I use two in my vosper which each handle 24 volts. Be warned though you can seriously damage them if you reverse the polarity when connecting to the battery. There are two adjustments on them. I think one is sensitivity around the low speed response which improves greater low speed control. The other is speed range which gives you adjustment on the range of speed in relation to your radio stick throw. I have found these to be excellent high quality controllers giving excellent service and performance. You can wire in an anti reverse polarity circuit using a diode which is described in the instructions.

    Regards
    Kevin

    speed controllers
    controllers
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    ๐Ÿ’ฌ HMS BRAVE BORDERER
    1 year ago by kevinsharpe ( Master Seaman)
    Flag
    Hi. Been watching this build progress and the discussion. Having seen the recently posted pictures of the rudder installation it appears that your problem is probably caused by the rudder aspect. From the photos it appears that the rudder post is not mounted completely vertical. Thus when the blade is turned by the servo this will create an aileron or elevator effect on the water flow. Things behave very. Much the same in water as they do in the sir.

    Regards
    Kevin

    build
    rudder
    servo
    rudder mount
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    ๐Ÿ’ฌ HMS BRAVE BORDERER
    2 years ago by kevinsharpe ( Master Seaman)
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    Hi
    Did you consider building the superstructure using plastic sheet as plastic would bend around the curves.

    Regards
    Kevin

    build
    superstructure
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    ๐Ÿ“ Nordea research
    2 years ago by kevinsharpe ( Master Seaman)
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    Hi
    This could be the Robbe Nordenay. This was a research vessel which is well out of production but a nice and impressive work boat. if you google robbe Nordney you will see pictures of her. She was twin screw with a crane to lower a work boat.

    Regards
    Kevin

    vessel
    crew
    robbe
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    ๐Ÿ’ฌ HMS BRAVE BORDERER
    2 years ago by kevinsharpe ( Master Seaman)
    Flag
    Hi Lyle.
    Note your comments on planing strikes or the hard chine hull. I have a 52" Veron FPB. Powered by two Graupner 900 motors. When she gets up on the plane loads of wash coming over the rear deck. Am I right in thinking that if I fit a strake to each side of the hull at the bottom of the vertical skin and flush with the bottom of it it will assist in planing and keep wash away from the rear deck. if I fit them I intend to flare them towards the bow.

    Regards
    Kevin

    graupner
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    ๐Ÿ“ Help required on Boat i.d.
    2 years ago by kevinsharpe ( Master Seaman)
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    Hi
    When you research vosper thornycroft they built many warships for foreign navies, mainly in the Middle East i.e. Oman Malaya etc. if you ok on e bay under vosper you will see photographs of these vessels. it. islikely that your model is authentic and was built for a foreign, likely middle eastern navy.

    Regards
    Kevin

    stern
    vosper
    model
    vessel
    e bay
    built
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    ๐Ÿ“ Veron Vosper F.P.B. 52"
    2 years ago by kevinsharpe ( Master Seaman)
    Flag
    Hi Jon.
    I wouldn't be surprised if it would make ยฃ300. I have looked around for about six years and never seen such an origional and unmade FPB kit. I have put a sound system in mine supplied by action electronics. The sound is of a turbo cat diesel and is very effective.
    Regards
    Kevin

    vosper
    kit
    sound effect
    system
    action electronics
    action
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    ๐Ÿ“ Veron Vosper F.P.B. 52"
    2 years ago by kevinsharpe ( Master Seaman)
    Flag
    Hi John. interested to know what kind of offers you have had. Boaty, yes Veron did an RTTL Rescue Target Towing Launch, they featured in the black and white film ' The sea shall not have them'. This though is their fast patrol boat. I believe it's called a 'Trinity class patrol boat and some were supplied to the Trinidad and Tobago navy. You will sometimes see the model bares the name Coureland Bay'. I have seen photos on this website of her. They were built by Vosper Thornycroft in Portsmouth. if I was building her I would put two meaty brushless motors n her which should bring a sprite lay planing performance. I have fitted two Graupner 900s in mine, which give her an excellent turn of speed. These are brushed motors but are not available any more. The hull space is vast so easily accommodates batteries with space for sound system working radar etc.

    Regards
    Kevin

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    ๐Ÿ“ Veron Vosper F.P.B. 52"
    2 years ago by kevinsharpe ( Master Seaman)
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    Hi
    This model is a particular favorite of mine. I am restoring one having converted to twin electric motors. Quite a rare kit but impressive when made and is 52" hull. Hull is really strong and initially made for 10/15cc engine. Cabin structure quite testing to assemble. I have totally re worked mine. Quite a rare kit and probably collectable. Would probably sell well on e bay. Fleetscale do a hull deck and running gear but the cabin would be a challenge due to its unique shape and flying bridge. An excellent find.
    Regards
    Kevin

    cabin
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    deck
    e bay
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    ๐Ÿ“ Spektrum, new, useless...
    2 years ago by kevinsharpe ( Master Seaman)
    Flag
    Hi
    Don't know wether you solved this yet. I recently tried to bond my Dx8 to a receiver and failed. Reason my receiver battery too low. When charged bound first time. Clearly rx power is critical
    Regards
    Kevin

    receiver
    battery power
    battery
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    ๐Ÿ’ฌ Sanding down.
    2 years ago by kevinsharpe ( Master Seaman)
    Flag
    Hi
    Halfords do an excellent range in acrylic paints in good size cans, including Matt colors.additionally they will mix a specific color.

    Regards Kevin

    paint
    halfords
    sanding
    acrylic
    paints
    matt
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    ๐Ÿ“ Fire boat
    2 years ago by kevinsharpe ( Master Seaman)
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    Hi does anyone know where I can purchase fittings for the 35" aerokits fire boat. Thanks
    Kevin

    fittings
    aerokit
    fire boat
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    ๐Ÿ“ Aerokits fire boat 35"
    2 years ago by kevinsharpe ( Master Seaman)
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    Mark. Many thanks for your advice. Regards, Kevin

    advice
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    fire boat
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    ๐Ÿ“ Aerokits fire boat 35"
    2 years ago by kevinsharpe ( Master Seaman)
    Flag
    Thanks for your advice Shaun. Regards,
    Kevin

    advice
    aerokit
    fire boat
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    ๐Ÿ“ Aerokits fire boat 35"
    2 years ago by kevinsharpe ( Master Seaman)
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    Hi. I am building a 35" version of the aerokits RAF fire tender. I am at the point where I need to decide on the electric motor which is appropriate. I would like the vessel to be able to come upon to the plane without to much effort and have a bit in reserve for anxious moments or sheer fun. Do you recommed a brushed or brushless motor and if so what power rating. If brushless either in runner or out runner. Grateful for any advice. Regards
    Kevin.

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    ๐Ÿ“ Stabilit Express
    3 years ago by kevinsharpe ( Master Seaman)
    Flag
    Hi Wayne

    I have used this bonding agent and yes it is expensive. This glue is in a technically superior league to mist products out there. I understand that it is an acrylic glue. I have even used it to bond a nod laminate metals very effectively. it is also very effective when bonding to plastics. Yes it is expensive but it is an excellent glue which out performs anything else I have used.

    Regards
    Kevin

    glue
    acrylic
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    ๐Ÿ“ what esc should I use with graupner 900 bb motors
    4 years ago by kevinsharpe ( Master Seaman)
    Flag
    Definitely recommend the Electronize esc I use the FR 30 hx in my vosper which has. Two Graupner 900 motors. The esc's give excellent control ahead and astern.

    graupner
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    ๐Ÿ“ what esc with graupner 900 motors
    4 years ago by kevinsharpe ( Master Seaman)
    Flag
    HI I definitely recommend the Electronize FR 30 HX. I use two of these in my 52" Vosper fast patrol boat which has two Graupner 900 motors. I run both at 24 volts which the motors and speed controllers can easily handle. They are a quality esc with excellent repair back up.

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    ๐Ÿ’ฌ b10 naval
    7 years ago by kevinsharpe ( Master Seaman)
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    The model is from a 'Veron' kit now produced in the sixties to early seventies. veron no longer exist. She was a Vosper fast patrol boat of the Trinty class. I am currently restoring one which has twin electric. The model was originally designed to run on a single screw powered by a 10/15cc Ic engine. Copies of the plans of the model are available on e bay. Fleetscale also prosecutor an accurate drawing of the vessel along with a grip hull.

    crew
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    kit
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    patrol boat
    plans
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    ๐Ÿ“ What should I do with these two beauties?
    7 years ago by kevinsharpe ( Master Seaman)
    Flag
    Nice looking models with a classic period look. I would not advise painting, just clean up and keep as original as possible. They would look great on didplay

    model
    paint
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    ๐Ÿ“ Motor wanted
    7 years ago by kevinsharpe ( Master Seaman)
    Flag
    The motors power a partly refurbished Veron Vosper high speed patrol boat which was originally designed to be powered by a 10cc Ic engine. I saw one running many years ago as a youngster and wanted to replicate this performance. I decided that there would be no half measures as the hull is 52" and made of ply. I did not want to have to up engine the boat as a result of disappointing performance, hence the 24v via 20 3700 amp hr Nimh cells Per motot. The performance is excellent even with one 900 motor down.
    Regards
    Kevin

    engine
    high speed
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    ๐Ÿ“ Motor wanted
    7 years ago by kevinsharpe ( Master Seaman)
    Flag
    Thanks.
    Do the motors you're using accept. 24V? I would also be interested in how they are fastened. The Graupners have four lugs to bolt onto the motor. Bracket/frame. Also do yours have integral cooling fans or are they cooled by water or is cooling not necessary.

    Regards
    Kevin.

    cooling
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    ๐Ÿ“ Motor wanted
    7 years ago by kevinsharpe ( Master Seaman)
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    Looking to purchase a graupner 900 motor. Looking for one In excellent condition. Good price paid.
    Tel "removed please send personal message".
    Kevin

    graupner
    motor
    wanted
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