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The local water company were responsible for my cellar flooding and "drowning" my "Sea Queen", they said to claim off my home insurance. Along with loss of all my dark room equipment and my radio control gear and sundry other kit it came to over a thousand pound. It took over three months to sort out.
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 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.
Well Doug, have been to Ludlow today and saw a Sea Queen on the River, it was powered by a Supermarine, driving a 50mm x 50mm brass prop. Power supply was 12v 7ah sla using a 30 amp. esc. It looked fantastic on the water, even against the current it was moving ahead with full power. If my sea commander goes that well I'll be as happy as a dog with 2 tails. Cheers Colin.
I suggest you go to one of my old reports on my 48 inch Crash boat by Lyle G. The issue is most likely t5hat asn it is a MODEL it needs some extra support in full size water . A model thus NEEDS the advantage of planing strakes at the vertical hull and lower hull joint as it is a "Hard Chine design " and you may need to widen with an extra strake WIDTH though it can be thinned in its vertical configuration as it is blend into the forward hull skin. The wider chine is the secret of the MGB's Torpedo Boats the Elco's and the Higgins and the BPBoat design . Though I live in the colony of Oz I have the British Power boat 41 foot 6 inch model at 48 inches , the Vosper Fast patrol boat , the Range Safety Launch , The BPB co Whaleback at 36 inches and the Black Maurader and even the Sea Queen and ALL I/Combustion powered and all over 15 to 20 years young and ALL as well as the Keilcraft 48 inch Cras Boat all all all have this trick and all get up on the plane as the "Brave class" with its Proteus engineer was still a planing Hard Chine hull and as such it is the hull chine strakes that are so essential to the design originated by was it Georga Selman ? and Hubert Scott Payne ?. Oldies are goodies and the masters of old need to be never forgotten for their skills. Regards Lyle and best construction wishes for modifications.
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😊😊
Yep, all v hulls need spray rails and it makes your power requirements less for any case. Properly done it looks good,too. With the Sea Queen being a bit on the lardarse side it helps even more to get her "on the step" Martin
I am using 1 12v lead acid battery in my sea queen with a brushless motor. It’s only giving me about 15 minutes on the water. The boat will get up and go for a few minutes but after that I can have the throttle wide open but the speed has gone. Can I link more than 1 battery together to give me a greater voltage which I believe a brushless motor can cope with. If so which batteries should I use and should I wire in series or parallel? I await your thoughts Thanks