F450 Doesnt seem to have the Lift power? - RC Groups
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Feb 01, 2013, 12:43 PM
Registered User

F450 Doesnt seem to have the Lift power?

I though i had by F450 all set up the way I wanted it and now it seems like it doesnt have the Power that it used to. I have not changed anything since it was working quite well.

I use 4 different batteries all the same 30C 5000mah 3cell. and the result seems to be the same.

When I go to full throttle it used to blast off! and go verticle like a rocket.
Now its very sluggish to gain altitude and coming down I have to be very careful about speed of desent or....well its had some close calls to mother earth.

If I try to get it to hold altitude by moving the stick to center it will loose altitude-
(not sure I ever quite understood how this is supposed to work) But it did hold a lot better than it does now.

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Feb 01, 2013, 12:51 PM
Registered User
How long do you fly them? If you cycle through the batteries and drain them too much each time, they'll all die out at the same time.
Feb 01, 2013, 01:00 PM
Registered User
I usually fly for 6-8 Minutes. Generally I end up with 3.9 Volts Per cell at the end.

Two of the battiers are newer than the other and have very few cycles on them.

Thank you for your repsonse.

Feb 01, 2013, 01:58 PM
Surface, Air & Water Rc Toys..
freechip's Avatar
Mine shoots to the skies when in manual mode but in Atti and GPS it has a lot less lift power sort of speak.

Did you recently change Atti settings or something?
Feb 01, 2013, 02:39 PM
Registered User
I am going to go back to the origional atti settings. I did change them to smooth things out, But I thought it was working well after than.
Part of the problem is so many variables and time between days to get out and fly!
Feb 01, 2013, 03:36 PM
Surface, Air & Water Rc Toys..
freechip's Avatar
Why its always best to change one setting at a time and test.
Feb 02, 2013, 11:30 AM
Registered User
neato4u's Avatar
I'm assuming you're using a Naza FC.
did you do a recalibration using software?
Check your throttle curve too..
I have a feeling that your throttle calibration is out.
Feb 02, 2013, 01:01 PM
Registered User
Thank you for everyone who responded.

Fortunatly I had down loaded the Models to my computer from the TX.
I put the Model info back into the TX, and Booya!
She flies great again!

There are so many variables i got a little lost and I must have made some change in the TX that was causing the probelm.

What do you know, It was human error.......

Thanks again.


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