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--- searchwing-waterlanding [2019/01/22 09:53]
beckmanf added fulmar data sheet
+++ searchwing-waterlanding [2019/03/30 15:28]
j0ge4622 Merged topic waterproof and -landing
@@ Line 1: / Line 1: @@
+====== Making the plane waterproof for landing in the water ======
 ===== Waterlanding =====
-For small vessels, e.g. [[https://sea-eye.org/sea-eye-hat-zwei-neue-rettungsschiffe|Sey-Eye's Bavaria One]] the landing in a net on deck of the vessel is
+For small vessels, e.g. [[https://sea-eye.org/sea-eye-hat-zwei-neue-rettungsschiffe|Sey-Eye's Bavaria One]] the landing in a net on deck of the vessel is difficult or impossible due to space restrictions onboard. Therefore it might be an idea to land the plane in the water and to retrieve it with a dinghy.
-difficult or impossible due to space restrictions onboard. Therefore it might be an
-idea to land the plane in the water and to retrieve it with a dinghy.
 === Ideas ===
   * [[https://spectrum.ieee.org/automaton/robotics/drones/aquatic-fixed-wing-drone-could-lake-hop-across-canada|Alexis Desbiens Aquatic Drone]]
-  * [[https://www.aeromao.com/aeromapper_talon_uav/aeromapper-talon-amphibious | Aeromao Talon Amphibious]]
+  * [[https://www.aeromao.com/aeromapper_talon_uav/aeromapper-talon-amphibious|Aeromao Talon Amphibious]]
   * [[https://www.youtube.com/watch?v=dBxiN9bK3UI|Thales Fulmar with waterlanding]] with [[https://www.thalesgroup.com/sites/default/files/database/d7/asset/document/fulmar-ing_final_24-02-2014.pdf|Datasheet]]
+===== Construction =====
+[[:searchwing-waterproof-glue|]]
+==== Overview ====
+{{:waterproof_overview.jpg?400}}
+These are the sections to close on the fuselage.
+==== Bulkhead to separate the motor ====
+{{:waterproof_bulkhead.jpg?400}}
+{{:waterproof_bulkhead_2.jpg?400}}
+==== Closing holes ====
+The so glued model had some holes to fill / close. I used thin plexi-glas. Best way to glue them was hot glue, as it can also fill little holes or irregularities in thickness.
+{{:waterproof_camera.jpg?400}}
+I used the same technique also on other parts.
+===== Sealing connections and small holes =====
+Using a good tape can close all kind of connections and other small or thin holes. I used "3m Blenderm" - a waterproof and flexible tape:
+{{:waterproof_tape.jpg?400}}
+One other option is hot glue - as in this example:
+{{:waterproof_hot_glue_single_holes.jpg?400}}
+===== Waterproofing the servos =====
+there are 2 interesting articles on Instructables on this topic:
+[[https://www.instructables.com/id/Water-proofing-a-Servo/|https://www.instructables.com/id/Water-proofing-a-Servo/]] [[https://www.instructables.com/id/Waterproof-your-servo-motors/|https://www.instructables.com/id/Waterproof-your-servo-motors/]] (if you want to follow this one, dont forget the glitter on your finger nails)
+. Make the housing waterproof
+* I used "Curil", a standard sealing compound. * Open the servo and put the sealant an all touching surfaces * also put sealant to the cable, where it leads through the housing
+{{:servo_sealant.jpg?400}}
+. Insert a O-Ring under the horn
+* remove the horn * add a 1mm thick o-ring * add some lubrication. I used "CRC Multilube" - attention - lubrication has to be compatible with the rubber of the sealant. Don't use silicon rings with silicon lubricant. * screw the horn back on
+{{:servo_oring.jpg?400}}
+==== Test it... ====
+- submerge in water while it moves - no bubbles should emerge
+===== Waterproof capsule =====
+Um die Elektronikbauteile und den Akku vor Salzwasser zu schützen soll eine Wasserdichte Kapsel konstruiert werden.
+Erste Skizze:
+{{:wiki:img_6a0ab1732ff3-1.jpeg?nolink&800|img_6a0ab1732ff3-1.jpeg}}