LibrePilot Forum

General Category => Showroom => Topic started by: karla on April 25, 2017, 02:31:59 pm

Title: RC Laser Sailboat with LP
Post by: karla on April 25, 2017, 02:31:59 pm
Build Name: RC Laser Sailboat with LP

Flight Controller: Revolution Board
LibrePilot Version: 16.09
ESC: No need :)
Motor: No need. The wind is the motor :)
Frame and Steering Servos, rudder and sail: RC International Laser Controlled Class:

    RC Laser dimensions, class and buying: ( (

   The real, full size Laser Sail boats: (

Power: LiPo 3S 2700 mAh 30C (can do with a lot less, this pack will last many hours of sailing)
Radio transmitter: Walkera Devo 10, flashed with Deviation v 5.0 ( ), PPM via OPlink 433 mHz on trainer port.
Tx antenna: DIY Yagi-Udi: (please see picture)

About Yagi-Udi antenna 4xRange–Uda_antenna

Radio receiver: Revolution oplink onboard 433 mHz.
Receiver antenna: bipole 433 mHz half wave length placed in the mast inside the sail (please see picture)
Do also use an optional antenna placed on deck with a dipole 433 mHz 1/4 wave length for shorter range sailing.

FPV camera: A 2g Camera and 5.8Ghz Video Transmitter Combo

FPV antenna tracking on 5.8ghz

Set up of rudder and sail control:

Waypoints sailing in action:

Special Flight Control settings:
. GPS should be set to GCS System Settings GPS Settings UbxDynamicModel = Sea
. Path finders and setting up waypoints set altitude = 0
See the UAV file attached

Final comments:
This completes what I set out to do. I am very pleased with the results and what I can do with this set up, where ever I go around the world. But there are some developments that I want but can not do since I don't have the SW development skills. But I know the design parameters to develop it. Its about to maximize the angel between the current wind and the sail. Adding this will need an instrument to provide the direction of the wind to the boat, called windex, usually located at mast top. I invite anyone who would would like to explore this further :)
Title: Re: RC Laser Sailboat with LP
Post by: DocHardinger on May 05, 2017, 10:12:41 pm
Nice nice nice!
Title: Re: RC Laser Sailboat with LP
Post by: andre.g on May 11, 2017, 10:21:25 am
I love it.

Inviato dal mio ALE-L21 utilizzando Tapatalk

Title: Re: RC Laser Sailboat with LP
Post by: karla on May 11, 2017, 10:50:31 am