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LEGO models my own creation MOCpages toys shop Motor and Rudder Motorization Unit for Special Hulls (High-Speed Edition)Boats
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Motor and Rudder Motorization Unit for Special Hulls (High-Speed Edition)
This is a scratch-built propulsion unit for specialized Lego hulls. It is mainly designed for the inflatable dinghy hulls, such as the Coast Guard dinghy or the prisoner escape boat; but it can also be used on buckets for hulls to make simple boats.
About this creation

This unit was designed by me to be used on hulls with studs and no motor mounts. It is also a high-speed edition with the anti-drag rudder which decreases drag and increases propeller thrust. It also optimizes a boat's balance. Shown here is the unit WITHOUT the optional mounting plate. The mounting plate is to be used on inflatable dinghy hulls or larger hulls for extra mounting ability. This option is to only be used on the "non-hulls" such as the Power Miners Crystal Sweeper bucket. It is less draggy than the other option and is easier to mount.

Here is a special conversion of the motor. The rudder is removed in order to use this feature. The unit without the mounting plate is used and on the bottom of the motor is an axle which drives a "dummy" propeller which is powered by the motor's thrust to add some scale realism to a boat. This feature is on one of my unitary hull models, and it is on my PT-109 Torpedo boat. The motor attaches to the hull via the motor clips.

Here is the unit without the mounting plate on an example hull. This version of the unit is to be used on pieces like this, and is universal since it can be used on practically anything that floats and features bottom studs/mounts. My mini-boat has been made using this method: http://www.moc-pages.com/moc.php/440186

Here is the unit with the mounting plate. This is a Coast Guard dinghy hull, which has 2x2 stud mounts on the bottom which is used for rounded pieces for tables. The mounting plate fits in between the middle studs and holds on by 4 studs.



Comments

 I made it 
  October 2, 2017
Quoting Jeremy McCreary Interesting adapter, Angelo! Would love to see the Coast Guard dinghy in operation. Did you consider hanging the rudder off the back of the dinghy rather than off the motor unit? That might allow you to adjust the rudder without taking the dinghy completely out of the water, and it would definitely reduce the total amount of submerged plastic. The resulting decrease in appendage drag might well lead to a noticeable increase in speed.
Thanks! I will add a video later. Also, if you are considering mounting the rudder shaft to the boat itself, what shafts can I use? Good thing you noticed the drag factor. I have also since made another version of this motor, with a jet pump: http://www.moc-pages.com/moc.php/442436
 I like it 
  October 2, 2017
Interesting adapter, Angelo! Would love to see the Coast Guard dinghy in operation. Did you consider hanging the rudder off the back of the dinghy rather than off the motor unit? That might allow you to adjust the rudder without taking the dinghy completely out of the water, and it would definitely reduce the total amount of submerged plastic. The resulting decrease in appendage drag might well lead to a noticeable increase in speed.
 
By Angelo Filipelli
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Added September 7, 2017
 


LEGO models my own creation MOCpages toys shop Motor and Rudder Motorization Unit for Special Hulls (High-Speed Edition)Boats


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