Hoverfly Be still?

Emowillcox

Emowillcox

Member
Does HF fc need to sitting still when plugged into battery or armed?
Curious if the hoverfly was moving like on a boat when I plugged it in and then armed it would it cause it to fly different?
 

DucktileMedia

DucktileMedia

Drone Enthusiast
I think someone just posted this recently confirming that the Hoverfly does its gyro initialization when you arm it, not plug it in.
 

kloner

kloner

Aerial DP
one of the guys from hf said you can't fly it from a boat cause it had to be absolute stable whenever it's zeroing out the gyros or whatever it does
 



yeehaanow

yeehaanow

Member
Related to this, has anyone with a dual battery setup successfully changed batteries on a boat? ( By plugging one new battery first, then the other. Keeping it armed the whole time.

Any words of wisdom?
 



matwelli

matwelli

Member
or a small 2S/3S lipo, with a BEC powering up the FC , that way no danger of the props spinning and turning appendages into bait
 

Benjamin Rowland

Benjamin Rowland

Member
matwelli said:
or a small 2S/3S lipo, with a BEC powering up the FC , that way no danger of the props spinning and turning appendages into bait
Click to expand...

Now that is smart thinking.

Edit: Just thought about it, and I think you'd still be in danger as you plug in the battery to the motors because the FC would be armed at the time. It's Friday and it has been a LONG week, so maybe I'm off on this one.
 
Last edited by a moderator:

R

RotorFilms

Member
Hi guys,

We recently did a shoot where we had to fly from a chase boat to film a wakeboarder, we had a difficult time getting the copter to arm due to movement but when it did arm she flew beautifully. So in short if you can arm it then it will fly.

Have a look at this teaser of the film I was talking about.

http://www.multirotorforums.com/showthread.php?6053-Video-thread/page8

I really like the double battery setup idea though, really did not think of that. It is pretty dangerous though.

Cheers,

Andre
 

matwelli

matwelli

Member
Benjamin Rowland said:
Now that is smart thinking.

Edit: Just thought about it, and I think you'd still be in danger as you plug in the battery to the motors because the FC would be armed at the time. It's Friday and it has been a LONG week, so maybe I'm off on this one.
Click to expand...

Nah. Small battery only powers fc. Plug in flight battery just before take off and you have checked its un-armed

Sent from my GT-I9300T using Tapatalk 2
 

Efliernz

Efliernz

Pete
It is still only fully armed when you left-right arm it.

A separate 3S FC-only battery is the easy option. Plug the flight batts in when required.
 

workshop

workshop

Member
One does not need to keep the copter armed... (Props spin on throttle up) just ON.

I still disarm when I land for safety.

A third battery is just that; a third battery.

Jeff
 


workshop

workshop

Member
How about one that is on but disarmed? There a lot of precautions that take place in a professional environment.

Techno booms injure more people on set than anything with a propeller.

Jeff
 

M

MiniBirdTech

Member
Should there be any concern about having 2 discharged lipo batts (in this case parallel), then removing one and introducing a fully charged batt while the other discharged batt is still connected?
 

workshop

workshop

Member
None whatsoever. There will be a few moments of current flow between the fresh battery and the dead one but it is a small amount over a short time.

I measured (Fluke 87 III) a 1500mA current flow between a 3 cell at 11.1V and one at 12.6V for the purpose of this conversation.

Jeff
 

M

MiniBirdTech

Member
Does the same apply even if you are using larger/ higher voltage/ Amp batts like a 5-6 cell with 10,000+ mA and a C rating of 100+? The sudden surge from a large fresh lipo to a discharged lipo has kept me from trying the "always on" method of battery replacement.

I would be concerned about powering the brain of a multirotor with a single batt. (I'm talking about heavy lifters) I like the idea of the redundancy the parallel set-up affords. Lose a batt and you are still flying.

workshop said:
None whatsoever. There will be a few moments of current flow between the fresh battery and the dead one but it is a small amount over a short time.

I measured (Fluke 87 III) a 1500mA current flow between a 3 cell at 11.1V and one at 12.6V for the purpose of this conversation.

Jeff
Click to expand...
 


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