Prop Chart and Basic Electric Setup Sticky
08-07-2024, 10:17 AM
#26
Senior Member
Join Date: Feb 2023
Location: Corryton, TN. Fly at Lucky Lane RC RC Club
Posts: 207
Likes: 0
Received 29 Likes
on
27 Posts
Walkingdad,
Check out the link below. The 2204-1800Kv motor calls for an 8 inch diameter 4"pitch propeller (8x4) Make sure you also specify the propeller pitch. It is every bit as important as the diameter. That is why it is so important to get the manufacturer's specifications and recommended prop sizes from the web site or instructions that came with the motor.
https://www.buddyrc.com/products/sun...ushless-motors
I highly recommend getting a watt meter to check the actual power draw of a particular motor/prop combination. The meter is cheaper than a fried motor and ESC. Connect the watt meter "source" lead to your battery and the "load" lead to your ESC. Run the motor (with the desired prop installed) for 3 or 4 seconds at full throttle and then throttle off. Then read the maximum watts and amps on the meter. If either the watts OR the amperage exceeds the manufacturer's maximum allowable limits, then install a smaller propeller and try it again until acceptable values are obtained. Most of your questions to date could be answered by simply getting the manufacturer's limitations data and using a watt meter to check that the limits are not exceeded. This is doubly important if you are trying to use a battery outside the recommended limits of the motor, such as trying to use a 2S or 4S battery on a motor specified only for a 3S battery. It can be done so long as the allowable watts AND the amps are not exceeded. Here is a link to a popular watt meter for about $25.
https://www.motionrc.com/products/gt...yzer-gtp180awm
Check out the link below. The 2204-1800Kv motor calls for an 8 inch diameter 4"pitch propeller (8x4) Make sure you also specify the propeller pitch. It is every bit as important as the diameter. That is why it is so important to get the manufacturer's specifications and recommended prop sizes from the web site or instructions that came with the motor.
https://www.buddyrc.com/products/sun...ushless-motors
I highly recommend getting a watt meter to check the actual power draw of a particular motor/prop combination. The meter is cheaper than a fried motor and ESC. Connect the watt meter "source" lead to your battery and the "load" lead to your ESC. Run the motor (with the desired prop installed) for 3 or 4 seconds at full throttle and then throttle off. Then read the maximum watts and amps on the meter. If either the watts OR the amperage exceeds the manufacturer's maximum allowable limits, then install a smaller propeller and try it again until acceptable values are obtained. Most of your questions to date could be answered by simply getting the manufacturer's limitations data and using a watt meter to check that the limits are not exceeded. This is doubly important if you are trying to use a battery outside the recommended limits of the motor, such as trying to use a 2S or 4S battery on a motor specified only for a 3S battery. It can be done so long as the allowable watts AND the amps are not exceeded. Here is a link to a popular watt meter for about $25.
https://www.motionrc.com/products/gt...yzer-gtp180awm
08-07-2024, 10:18 AM
#27
Senior Member
Join Date: Feb 2023
Location: Corryton, TN. Fly at Lucky Lane RC RC Club
Posts: 207
Likes: 0
Received 29 Likes
on
27 Posts
Walkingdad,
Check out the link below. The 2204-1800Kv motor calls for an 8 inch diameter 4"pitch propeller (8x4) Make sure you also specify the propeller pitch. It is every bit as important as the diameter. That is why it is so important to get the manufacturer's specifications and recommended prop sizes from the web site or instructions that came with the motor.
https://www.buddyrc.com/products/sun...ushless-motors
I highly recommend getting a watt meter to check the actual power draw of a particular motor/prop combination. The meter is cheaper than a fried motor and ESC. Connect the watt meter "source" lead to your battery and the "load" lead to your ESC. Run the motor (with the desired prop installed) for 3 or 4 seconds at full throttle and then throttle off. Then read the maximum watts and amps on the meter. If either the watts OR the amperage exceeds the manufacturer's maximum allowable limits, then install a smaller propeller and try it again until acceptable values are obtained. Most of your questions to date could be answered by simply getting the manufacturer's limitations data and using a watt meter to check that the limits are not exceeded. This is doubly important if you are trying to use a battery outside the recommended limits of the motor, such as trying to use a 2S or 4S battery on a motor specified only for a 3S battery. It can be done so long as the allowable watts AND the amps are not exceeded. Here is a link to a popular watt meter for about $25.
https://www.motionrc.com/products/gt...yzer-gtp180awm
Check out the link below. The 2204-1800Kv motor calls for an 8 inch diameter 4"pitch propeller (8x4) Make sure you also specify the propeller pitch. It is every bit as important as the diameter. That is why it is so important to get the manufacturer's specifications and recommended prop sizes from the web site or instructions that came with the motor.
https://www.buddyrc.com/products/sun...ushless-motors
I highly recommend getting a watt meter to check the actual power draw of a particular motor/prop combination. The meter is cheaper than a fried motor and ESC. Connect the watt meter "source" lead to your battery and the "load" lead to your ESC. Run the motor (with the desired prop installed) for 3 or 4 seconds at full throttle and then throttle off. Then read the maximum watts and amps on the meter. If either the watts OR the amperage exceeds the manufacturer's maximum allowable limits, then install a smaller propeller and try it again until acceptable values are obtained. Most of your questions to date could be answered by simply getting the manufacturer's limitations data and using a watt meter to check that the limits are not exceeded. This is doubly important if you are trying to use a battery outside the recommended limits of the motor, such as trying to use a 2S or 4S battery on a motor specified only for a 3S battery. It can be done so long as the allowable watts AND the amps are not exceeded. Here is a link to a popular watt meter for about $25.
https://www.motionrc.com/products/gt...yzer-gtp180awm
