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Jan 09, 2019, 12:09 AM
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Mini-Review

FMS 50mm EDF




Sent for review testing by FastTech.com ( Product Page )

I came home after my morning walk and there was a box waiting for me .

Inside was a 50mm FMS EDF ..
The bullet connectors were pre soldered so all I needed to do to run some current measurements was connect a ESC .

2s = The EDF pulled 11.5 amp from a 2200 2s battery pack

3s = The EDF pulled 19.5 amp from a 2200 3s battery pack

Now I have to say that the motor did run smooth out of the box .
On the 2s there was some useful thrust , how much ?
How ever on the 3s it was just crazy .. At full power the thrust is just simply impressive as is the noise this EDF makes .. ( Be loud )
This 50mm will go into a HK Prime Jet pro , and I will try both 2s and 3s batteries ..
3s will definitely power the Prime , and I think that 2s will do just fine ( I think ) , just have to see how heavy the prime turns out ..

Now if you read the speel on this motor , it is supposed to be 3s - 4s ....
On 4s this EDF would be insane , and I am not sure you would want to go there (?) .. That 4500kv motor is already howling on 3s ...
So from here on the FMS 50mm 4500kv EDF is partnering with the Prime Jet pro ...
This be only the first post on this project ..

Thank you Fasttech.com , hopefully we will have some flying video's to view not to far into the future .

FMS 50mm EDF (2 min 33 sec)
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Apr 12, 2019, 04:43 PM
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Originally Posted by old4570 View Post

Now if you read the speel on this motor , it is supposed to be 3s - 4s ....
On 4s this EDF would be insane , and I am not sure you would want to go there (?) .. That 4500kv motor is already howling on 3s ...
Hi Old4570,

i think that your 4500kv version is primary for use with the 4s battery.
For the 3s is a 5400kv version.
Last edited by Deadguy; Apr 12, 2019 at 04:54 PM.
Apr 12, 2019, 05:49 PM
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That 5400KV might be even better on 2s
Apr 12, 2019, 11:51 PM
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Originally Posted by old4570 View Post
That 5400KV might be even better on 2s
I have the 5400kv in the Alfamodel Sabre. Not fly her yet. Ok, I will try both 3 & 2 S. I wonder if it will work on 2s. It will be great for the AUW.
Apr 13, 2019, 03:13 AM
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I find there is decent thrust on 2s , especially if your air frame is not overly heavy .
Jan 06, 2020, 10:04 AM
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hi everyone!

I'm interested in this EDF for a 4-EDF commercial airplane..

Did someone of you some test about lipos/amps and thrust?

your support is ery appreciated.

cheers


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