How To Construct Rudder For A Canoe7/5/2021
However, with dual propellers there is an opportunity to implement an independent motor control scheme for the left and right hand propellers.It comes down to this: a scaled down boat, all else being equal, need a bigger rudder area than the original vessel.Increasing the rudder area is the most direct way to solve the issue.However, area is not the only property that effect steering performance and scale appearance.
Some of the other propertied include: shape, amount of balance, location, rake and shape of horizontal section. So there are several means to improve or effect the boats behavior that Ill try and address as well. At the same time, since the main purpose of a radio controlled boat is not being a conversation piece for your living room, the majority of builders would rather have good performance on the water and choose 2. Note the threaded bushing, nut and washers and what you cant see: there is an o-ring. I usually throw the nut, washer and o-ring away and glue the bushing into the hull. Some books Ive read have suggested some rules of thumb to determine rudder size. Vic Smeed in Boat Modelling for instance suggest to use 1 14 square inches of rudder area for every foot your boat is long. Other sources (I cant remember where exactly) in conjunction with RC sailboats, suggested the rudder should be 10 of the total lateral plane (underwater profile of hullrudder). I cant vouch for either of these rules, but it may provide you with a place to start your own trial error. If you have a model, whose response youre happy with, use its rudder arrangement as a guide for your new efforts. The area of your RC boat rudder may be the most important factor effecting the steering performance of your radio controlled boat, but as Ive hinted to earlier, there are other factors as well. Problematic ships are often long with either high displacement or narrow beam. Examples include warships such as destroyers, battleships, and civilian and merchant ships such as oil tankers, merchant ships, liberty ships, barges etc. Favorable proportions are common amongst launches, tug boats and pleasure boats. Obviously, your boat will still have issues when navigating at lower speed and when docking etc. Some ships around the turn-of-the-century actually had the propeller behind the rudder no joke. Those were mostly torpedo boats some of which were in the British, French, Russian and US navies. To mimic this on a radio controlled boat is sure to disappoint in terms of performance, so avoid the vessel all together or side-step the design with a more traditional layout where the rudder is behind the propeller. I dont think you can automatically conclude that one will control better than the other.
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