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Don't know what happened MOTOR COMPARISON Model Number Caldercraft CEM 900T MFA Torpedo 850 Nominal Voltage 12v 12v Operating Range 6-24v 12v Type Brushed Brushed Current Cons No Load 0.4A 1.9A Current Consumption Max Eff 5A 10,8A Stall Current 20.3A 40A RPM at Nominal Voltage 3000r/min 9778r/min Prop Caldercraft 75mm The Motor I am putting in this Sea Queen is a Torpedo 850. This is due to the Caldercraft motor only manages just above walking pace.
Hi All Refer to attached for motor comparison. I don't like using Cyano so the hull be built using ZAP 30minute epoxy and a weather proof Alphylitic from Sika. I will more than likely use a polyurethane based glue for the skinning. The hole boat will be epoxy coated inside and out to add strength. By the way the epoxy resin will increase the strength by about 2.5😁😁
To give you some idea of the quality of this kit. Here are some photos. The quality is excellent and if you have a bit of experience this can easily be built. I don't fancy the all white look as the original had mahogany cabin sides and brass portholes this is what I will do with it,👍👍
I made this from a 54" long piece of Melamine shelving. shallow cut a centre ine down the middle 1/16" wide. The board was then marked into 2" squares using a laundry marker. The design concept was from a fuselage jig I had made by SLEC. The holes required for the brackets are M5 with captive ( T nuts) underneath pulled up into the bottom of the board. The red tape down the centre is masking tape ( the high quality stuff) this was to stop the boat glueing itself to the board. As the the keel has a skeg we needed to raise the keel to ensure parallelism I used an Enginerers Marking out block and two doorstops on this.The angles can slide and you then clamp the Bulwarks on I used thirty minute epoxy for this although I would like a longer working time epoxy. Bulwarks 3 and 4 with the motor base was also epoxied together. This was then located on the keey ( Dryfit along with the other bulkheads. A word of advice here use the cabin sides to ensure alignment. Check with a rule and squares before gluing anything.
Hi This is being built from the Jotika Sea Queen Kit. The kit is quite comprehensive but I need to check the fittings supplied as some of the look a bit small for a 1:12 Boat. Also decided to change the Motor from the existing Caldercraft to an MFA Torpedo 850 as I believe the Caldercraft Motor only manages walking pace. First thing was to built a building board. I need this to also cope with a VMW 46" RAF Crash Tender.
[Score: 10/10] 46"/8800g Colleen Anne Single Propellor (3 Blade 45mm) Direct Drive to a MFA 850 (3 Blade) Powered by Lead Acid (12v) 6Amp/h Batteries Controlled Through Perkins (15Amps) ESC - Comments: Comes in Kit form ex Jotika. Suggest changing the motor to the motor supplied which is a Caldercraft.
Guys The Jig is finished for Sea Queen, I have designed it in such a way that the 46" RAF Crash Tender that I have as kit from VMAW will use the same jig.. Will be fitting to MFA 850's on this as the original had two props. Built one of these many years ago fitted with a Taplin Twin sold it when I moved to South Africa.Not allowed to run IC Boats at the 2 clubs I belong to My wife must never know how much my hobby costs
Best thing I ever did was deal with SLEC as an aeromodeller. I have a fuselage building Jig that I am using to build a new Sea Queen. The idea is to ensure no twist on a 46" hull. Just making the blocks to allow for the Skeg will post pictures soon😊😊
Hi Gents I have found this build fascinating including robbob's build. I have one these to build but will be doing an Aerokits Sea Commander first. As these designs go back to the 60's and were designed by Les Rowe ( I know I had one with an ED Racer in it.) So I will be referring back to this quite a bit. Will start a build blog on it. Shouldn't be to difficult busy changing my model engineering workshop to build boats. Model Engineering too expensive now boiler for my Springbok cost close GBP 1 300.00 alpne 😊😊. Trouble is I am importing all parts from UK etc. Between royal snail mail and SA post office I need to order any requirements in advance.
Just a point of interest RDG tools are also Myford they bought Myford when it liquidated. Can vouch for their quality as I have bought numerous accessories from RDG direct before they owned Myford for my Super 7. The other one is Tracy Tools in Torquay they are very helpful and sell peculiar things like left handed drills. Need to get a screw out?😊😊. Worth looking at their site.
Have a query here busy with Vosper 46" I intend to put a twin drive in using aP94 electronic controller ex action electronics Some of the design says to use 2 Graupner 900 speed motor these are no longer available any suggestions as I need the gel cells for ballast I think MFA Come 850's might be overkill Thanks
Hi My Naulantia had the same problem equipped with a Hitech Drum Winch. In the end due to frustration I used an arm type sail winch to control the sails. I know this is more expense but it solved a big problem