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What do the numbers 550 or 650 refer to in quadcopters?

Started this discussion. Last reply by Harald Schmid May 18. 3 Replies

I see some components such as ESCs say 'rated for 550/650 class quadcopters', but what is a 550 class? Size? Weight?ThanksContinue

Advice on ESCs

Started May 12 0 Replies

Hello,I am building a quadcopter, and would like some advice on how to wire things up correctly.Its going to be approximately 5kg in weight, I have some 330kv motors, 18" props, a 16,000 mah 10c 6S…Continue

Tags: UBEC, 22, volts, BEC, multirotor

Can someone recommend a hexacopter frame and build instructions

Started this discussion. Last reply by Ronald Pandolfi Mar 2. 3 Replies

Hello,I built a basic quadcopter for my first project (following instructions from this instructables page ->…Continue

Tags: telemetry, newbie, frame, DIY, hexacopter

 

al's Page

Latest Activity

Harald Schmid replied to al's discussion What do the numbers 550 or 650 refer to in quadcopters?
"It is the diameter from motor to motor"
May 18
Thomas Butler replied to al's discussion What do the numbers 550 or 650 refer to in quadcopters?
"250, 550, and 650 refer to the distance, in millimeters, between the vertical shafts of the farthest opposing motors on a multi-rotor SUAV, and thus size. Greater the distance usually corresponds to heavier machine requiring a higher amperage ESC."
May 15
Thomas Butler replied to al's discussion What do the numbers 550 or 650 refer to in quadcopters?
"The important attribute for an ESC is the AMPS; amperage rating of the device. A simple Google will get you the answer, but I will tell you. The number 550 refers to the distance in millimeters between two of the farthest opposed motors mounted in…"
May 14
OG replied to al's discussion What do the numbers 550 or 650 refer to in quadcopters?
"that is non sense ESC are rated for AMP draw as it relates to motor KV & Prop size . 550/650 craft AMP draw depends on motor and prop size !"
May 14
al posted a discussion

What do the numbers 550 or 650 refer to in quadcopters?

I see some components such as ESCs say 'rated for 550/650 class quadcopters', but what is a 550 class? Size? Weight?ThanksSee More
May 14
al posted a discussion

Advice on ESCs

Hello,I am building a quadcopter, and would like some advice on how to wire things up correctly.Its going to be approximately 5kg in weight, I have some 330kv motors, 18" props, a 16,000 mah 10c 6S battery and a APM 2.5 and I am trying to get as long a flight time as possibleI need to get some ESCs and was looking at these Hobbywing Xrotor Pro ones:…See More
May 12

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Please tell us a bit about your UAV interest
Using UAVs in conservation and for hobby
Hometown:
Hamilton

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