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This is my first post in here and I have to congratulate you for keeping this awesome forum. I’ve only been in here for a few days now and I’m stuck on reading for hours every day the accumulated wealth of knowledge you’ve gathered here.
Although I’m in RC for more than 25 years (running electric and nitro cars) it is the first time that I’m involved into building a Boat project. But this is not an ordinary RC Boat, it will be mostly used for mapping and exploring the seabed floor as it will be equipped with wireless sonar and camera devices.
A friend of mine pointed me to a specific boat that quite a few fishermen here in Greece are using, for sending live bait into the sea.
The below are pics of this boat:
p4f.jpgp4u.jpgp4t.jpg
The specs of this boat are:
Net Weight: minimum 6kg to 10kg maximum (when fully loaded with all equipment necessary)
Length: 95cm Width: 36cm
Twin independent motors & props
Twin independent rudders
GPS unit for autopilot and return to home functionality
The system has the ability to run even when a motor or rudder becomes faulty.
The hull is designed so the boat can even sail in wave conditions of + 5 Bf.
I’m quite happy with the above boat (seen it live, running effortlessly at 3 Bf winds) so I went ahead and ordered it with just the GPS unit. It arrives around the end of this month, as these are custom build boats here in Greece and are made to order.
I will install dual 4S LiPo 20000mAh batteries (connected in parallel) for running the motors and a 2S LipO 7000mAh battery for the rest of the electronics.
And now we come to the question.
I’m planning to get two Turnigy AquaStar 3974-2200KV motors for this boat. They look quite descent for their price, but I do not know which ESCs to get for my setup. I don’t even know what propeller sizes I should use. All I’m looking for is a speed of 5-10mph for when the system will be surveying the seabed (at about 10-25% of the throttle on the Tx) and 20-30mph for just hovering round and return to home position (at about 60-80% of the throttle).
I’ve come down to two different makes of ESCs but their specs are exactly the same. These are the HobbyWing Seaking 120A v3 and the Turnigy Marine 120A.
The Turnigy one is the cheapest of the two, but is it made to last? Are all components of similiral quality as with the HobbyWing one?
Also am I good with the 120A ESCs (for the 100A Turnigy AquaStar 3974 motor) or I do need to go at the 180A versions of these?
Lastly what prop sizes would you recommend? (I’m willing to get 3-4 different ones just to try them out.)
Although I’m in RC for more than 25 years (running electric and nitro cars) it is the first time that I’m involved into building a Boat project. But this is not an ordinary RC Boat, it will be mostly used for mapping and exploring the seabed floor as it will be equipped with wireless sonar and camera devices.
A friend of mine pointed me to a specific boat that quite a few fishermen here in Greece are using, for sending live bait into the sea.
The below are pics of this boat:
p4f.jpgp4u.jpgp4t.jpg
The specs of this boat are:
Net Weight: minimum 6kg to 10kg maximum (when fully loaded with all equipment necessary)
Length: 95cm Width: 36cm
Twin independent motors & props
Twin independent rudders
GPS unit for autopilot and return to home functionality
The system has the ability to run even when a motor or rudder becomes faulty.
The hull is designed so the boat can even sail in wave conditions of + 5 Bf.
I’m quite happy with the above boat (seen it live, running effortlessly at 3 Bf winds) so I went ahead and ordered it with just the GPS unit. It arrives around the end of this month, as these are custom build boats here in Greece and are made to order.
I will install dual 4S LiPo 20000mAh batteries (connected in parallel) for running the motors and a 2S LipO 7000mAh battery for the rest of the electronics.
And now we come to the question.
I’m planning to get two Turnigy AquaStar 3974-2200KV motors for this boat. They look quite descent for their price, but I do not know which ESCs to get for my setup. I don’t even know what propeller sizes I should use. All I’m looking for is a speed of 5-10mph for when the system will be surveying the seabed (at about 10-25% of the throttle on the Tx) and 20-30mph for just hovering round and return to home position (at about 60-80% of the throttle).
I’ve come down to two different makes of ESCs but their specs are exactly the same. These are the HobbyWing Seaking 120A v3 and the Turnigy Marine 120A.
The Turnigy one is the cheapest of the two, but is it made to last? Are all components of similiral quality as with the HobbyWing one?
Also am I good with the 120A ESCs (for the 100A Turnigy AquaStar 3974 motor) or I do need to go at the 180A versions of these?
Lastly what prop sizes would you recommend? (I’m willing to get 3-4 different ones just to try them out.)