rcplane13
Im planning on building the F35 v2. Could someone tell me how much flight time you get with 1600mah battery as presented in the master list or the battery that you use for ur rcpowers jets.

-Thnx
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soccerdude008
I think you will probably get about 5-8 minutes. You should get a voltage alarm put in your plane, that will alert you before the esc slows the motor down, or cuts power to the motor. It will allow you to safely land your plane. You can get one on ebay for like $5.
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Airforce101
Well, I think it depends on a lot of factors:

- the motor your using
- how heavy you build your plane
- how much wind there is whe you fly
- how hard you fly your plane
- ...

I'd say 5-8 minutes is pretty optimistic for a 1600mah lipo. I'd set my timer for 3 or maybe 4 minutes and then land and use a battery checker to see how much juice it still has. That should give you a ball park figure for your next fight (provided all of the variables mentioned above don't change)
My avatar is what I look like after a "landing"...
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e3_Scott
Quote:
Im planning on building the F35 v2. Could someone tell me how much flight time you get with 1600mah battery as presented in the master list or the battery that you use for ur rcpowers jets.

-Thnx


My experience has shown that if you are using the HK D2826/6 2200 Kv motor for example (which is one of the recommended motors on the Master Parts List), you should get a good 5 minute flight from a 1600 Mah battery with about 3.7 V left per cell. This allows for lots of bursts of wide open throttle and aerobatics. I set my timer for 5 minutes with this motor/battery combo and still have a cushion of 30 seconds or so if I need to do another circuit before coming in to land or need to go around after a bad approach.

Of course also consider some of the options that Airforce101 mentioned above, weight of your plane and wind affect how you have to manage your throttle to get your plane to fly properly. If you are having to keep your throttle at 3/4 or higher just to cruise around, then you will drain the battery faster than if you can just be at about half throttle and do the same thing.

You can stretch it to about 5:30 to 6 minutes, but not a good idea to discharge your battery too far, the rule of thumb from what I have read is not to discharge your battery below 80% capacity. Most ESCs that I have used will start to significantly slow the motor down when one or all of my cells get down to 3.3V. You will hear and feel your motor lose power, you should still have enough power for your servos to work to get back and land, but you will not have much punch left to do anything else.

From what I understand if you are using the MJV3 from Grayson Hobby, you should get a little bit more time out of your batteries.

As soccerdude and Airforce101 mentioned, you can also put an alarm on your plane or check the voltage with a little voltage checker or on your charger to give you a more accurate idea of your battery endurance. The little voltage checkers are handy to have in your field tool kit and I think you can get one from Hobby King for less than $2.

Hope this helps you.

Cheers,

Scott
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LukeWarm
How many days should a tank of gas last in my car?
You would need to know fuel capacity and average consumption.

I fly a light V1 size jet using a micro jet V3 and a 1300mAh battery.
I fly with the throttle at 60% most of the time and 100% when I do things where I need the power. It last a lot longer than 5 minutes. At full power, it last less than 3 minutes.
***************************************************
This is from a tutorial thread I started called The equations we use
.
This is the equation for estimating flight duration:
Amp draw will depend on load and the motor's abilities. A lot of people use this formula to figure max flight time under a given load.

[(mah/1000) /average amp draw] x 60 = minutes of flight time

For a 2200mah battery and a 30 amp motor.
[(2200mah/1000) /30amps] x 60 = 4.4 minutes

If the 2200 mah battery is fully charged and working perfectly, you can draw 30 amps from it for 4.4 minutes. That's if it dumps its entire load at the motor's full amp draw, which I would not recommend.
**************************************************
A jet going straight up at full throttle, using a 30amp motor, draws almost 30 amps.
A jet going straight down at full throttle, using a 30amp motor, draws less than 10 amps.

The bottom line is:
The load that is placed on a motor determines its amp draw.
The motor's average amp draw and the batteries storage capacity determines flight time.

To answer your question,
We have to know your motor's average amp draw. In other words.>
If you tell us about the motor you have and how hard you push it,
we can give you a more precise answer.
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Jeriah
Quote:
Im planning on building the F35 v2. Could someone tell me how much flight time you get with 1600mah battery as presented in the master list or the battery that you use for ur rcpowers jets.

-Thnx


yeah a little over 5 minutes but that depends what motor you have. i would recomend getting a 2200 mah battery for the f35. normally costs less too!
eZflight ~ Where flight is easy!
Youtube videos ~ https://www.youtube.com/ezflight
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rodrigo
I multiply the equation posted by Luke by a factor depending of flight condition:
x2 in calm days and some aetobatics
x1,8 in medium wind and same time of aerobatics (a couple of vertical climbs, loops, lot of rolls and spins)
x1,5 in windy days (60-70% of throttle in upwind direction)

Actually I use a 1500mah in my twin Bronco (900grs AUW 18A each motor at full throttle) and my timer is set to five minutes and have sufficient power to land safe even if I abort two times....

Enviado desde mi GT-I9100 usando Tapatalk 2
good luck!

tx Futaba 9CAP & 8U
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