Flight time issues on E5

[Tek18x]

I see everyone else getting 4:30-5:00 minutes+ on their E5 with ease.
Here is my set up, I can't figure out why I get max 3:30 and still my packs come down close to the danger zone, i've debated 3:15 on flight time. I do not fly that hard either.

Synergy E5
Scorpion 4025-1100kv
CC Bec Pro
CC 120HV ESC
Pulse 4500mah 6s 45C

I flew my uncles Glacier 5000mah 6s 45C this past weekend and still got 3:30 on the flight time.
Im running Vbar governed at 2450HS.
If i run any lower than 2450HS it feels very slow to me. Im running a 14T pinion for an 8.5 gear ratio.


Im thinking options are:

-running 12s and swapping motor out
-If running 12s, keep at 550 size or go up to 600?

Thanks

[GravityBlows]

My 6s E5 was Scorpion 1100kv motor, YGE 120HV, Pulse 4500 45c pack. I was at 2450HS for 4mins, beating the hell out of it. Came down at 3.80 per cell. Plenty of power, maybe your timings off? How many flights are on that battery? Things Id check. Gear mesh too tight, bad solder joints, any drag in the setup? One thing Ive learned about our lipo's we use, man they don't last for ever; and some seem to pack more punch than others (same packs too). If its a fresh pack (under 50 charges) Id defiantly look at your solder joints and motor/esc setup. This 550 rocks at 2400HS on 6s.

[Tek18x]

Originally Posted by GravityBlows

My 6s E5 was Scorpion 1100kv motor, YGE 120HV, Pulse 4500 45c pack. I was at 2450HS for 4mins, beating the hell out of it. Came down at 3.80 per cell. Plenty of power, maybe your timings off? How many flights are on that battery? Things Id check. Gear mesh too tight, bad solder joints, any drag in the setup? One thing Ive learned about our lipo's we use, man they don't last for ever; and some seem to pack more punch than others (same packs too). If its a fresh pack (under 50 charges) Id defiantly look at your solder joints and motor/esc setup. This 550 rocks at 2400HS on 6s.

Your username made me laugh out loud

But hmmm... I know my packs are reaching slowly the end of their life. They are about 2 years old now, but im a college student and don't get to fly as much as I use to. Most of the time they sit at storage voltage. I'd estimate i have around ~75-100 on each of my 3 packs

I used my uncles 5000mah 6s 45C that was pretty new this weekend expecting a huge difference and nothing.

[Tek18x]

People running a Synergy E5s with 626mm blades:

- What is your flight time/HS?
- Batteries?
-Motor?

Ive done some research on the HKIII-4035-560kv with 3300mah 6s 45C and 626mm blades on the E5s and people have some great results.

[GravityBlows]

Originally Posted by Tek18x

People running a Synergy E5s with 626mm blades:

- What is your flight time/HS?
- Batteries?
-Motor?

Ive done some research on the HKIII-4035-560kv with 3300mah 6s 45C and 626mm blades on the E5s and people have some great results.

I like the E5 personally better as a 600. Have tried it as a 626, but liked the 600 best. 600 with Rail 606 blades, Scorpion 560kv pulse 3000 12s stick pack. Hammers at 2300HS! 626 was too floaty for me, I like smaller disk...I switch directions like a bumble bee . Up to you and your flying style. Lots of guys here love 626, its just not for me.

[Tek18x]

Originally Posted by GravityBlows

I like the E5 personally better as a 600. Have tried it as a 626, but liked the 600 best. 600 with Rail 606 blades, Scorpion 560kv pulse 3000 12s stick pack. Hammers at 2300HS! 626 was too floaty for me, I like smaller disk...I switch directions like a bumble bee . Up to you and your flying style. Lots of guys here love 626, its just not for me.

Can you explain the difference between the 606 and 626? this is my biggest heli and I don't understand what you mean

[Danny Dugger]

My setup is a 626mm stretch governed for 1850, 2250, and 2375. Scorpion 3536-510kv on 12s with 14T pinion & Kontronik Helijive 120. I get 4 minute flights with 3850mah Thunder Power Magnas and 4000mah Spyders. Obviously I can fly longer if I just fly at 1850, I can squeak out 4 minutes at 2375 but I need to land right on the timer.

[GravityBlows]

Originally Posted by Tek18x

Can you explain the difference between the 606 and 626? this is my biggest heli and I don't understand what you mean

The 600 stretch is a standard 600 length boom made for the 606 size blades. The 626 is a 630 length boom. Both stretches required you to use the optional gearing to speed up the tail. Both run on 12s. You can find all the items you need on Matt Botos website. 600 stretch or 626 stretch.

[Tek18x]

Originally Posted by GravityBlows

The 600 stretch is a standard 600 length boom made for the 606 size blades. The 626 is a 630 length boom. Both stretches required you to use the optional gearing to speed up the tail. Both run on 12s. You can find all the items you need on Matt Botos website. 600 stretch or 626 stretch.

I was referencing when you said, "Hammers at 2300HS! 626 was too floaty for me, I like smaller disk...I switch directions like a bumble bee . Up to you and your flying style. Lots of guys here love 626, its just not for me."

The floaty feeling?

[GravityBlows]

Heres kinda an idea of the size difference. Far right is E5 550, next to that is E5 626 stretch.
Im trying to find a pic of my 600 next to 626, its around here somewhere...

[IMG][/IMG]

[GravityBlows]

Originally Posted by Tek18x

I was referencing when you said, "Hammers at 2300HS! 626 was too floaty for me, I like smaller disk...I switch directions like a bumble bee . Up to you and your flying style. Lots of guys here love 626, its just not for me."

The floaty feeling?

The larger the disk, the more hang time you have, I refer to this a "floaty". The smaller disks feel better to me because the way they flip and roll are quicker.

[Tek18x]

Great comparison, ive looked everyone on google to find that exact pic.

[GravityBlows]

Here is the actual length of the 626, no comparison but its quite a bit larger than the 550.
[IMG][/IMG]

[Thunder Fighter]

Firstly I'm not sure your motor is correctly listed in your first post, the 4225 doesn't come in an 1100kv version as far as I am aware, I am guessing it's a typo and you mean 4025-1100kv.

I think for your headspeed you may be slightly over geared, using Mr. Mels call it looks like you could go to a 13t and still hit your target headspeed OK. I find it is usually most efficient to use the lowest pinion that will give you your target headspeed so you would get some time back without any loss of power.

As another data point, I run my 626mm E5s with a 4035-560kv on 10s 4000mah packs for between 6 and 9 minutes depending on my headspeed used in the flight. I fly a mix of low headspeed 3D (1700rpm), basic 3D and big air (1950rpm) and only seldom use of IU2 (2150rpm) when I feel like a bit of power.

//Dennis.

[Tek18x]

Originally Posted by Thunder Fighter

Firstly I'm not sure your motor is correctly listed in your first post, the 4225 doesn't come in an 1100kv version as far as I am aware, I am guessing it's a typo and you mean 4025-1100kv.

I think for your headspeed you may be slightly over geared, using Mr. Mels call it looks like you could go to a 13t and still hit your target headspeed OK. I find it is usually most efficient to use the lowest pinion that will give you your target headspeed so you would get some time back without any loss of power.

As another data point, I run my 626mm E5s with a 4035-560kv on 10s 4000mah packs for between 6 and 9 minutes depending on my headspeed used in the flight. I fly a mix of low headspeed 3D (1700rpm), basic 3D and big air (1950rpm) and only seldom use of IU2 (2150rpm) when I feel like a bit of power.

//Dennis.

Yes that was a typo thank you i corrected the first post.
Ive read threads of people running 8s or 10s over 12s, why is that?

Im not an aggressive flyer, but i love having the power for fast full pitch moves. Thats where my battery life goes.... im guessing 626mm will help this

[Thunder Fighter]

For a 600 size Heli you can't really get away with 6s setups for high headspeed 3D flying as it is too hard on the packs. Most people then go 12s as they plan to share packs with other Heli's by using them as 6s single packs and everything from the ESC to the packs will be less stressed on the HV setup.

10s was a popular setup with the Logo600, as the voltage was fine for a 600 size, the gearing of the model suited the standard KV (500-600) motors and the packs were usually a little cheaper than 6s packs, but it meant less opportunity for sharing.

8s setups are much less common, you would need to check with gearing and motor options to get a workable solution, but it is possible. Only real advantage is some LV ESC's can take 8s, so you might be able to go semi HV, without a new ESC, and reduce the load on the packs somewhat.

I went 10s because I had the motor, ESC and packs from my Logo 600. I am setting my Logo 600 up again with an 8s setup as I have an ESC and motor and even some 4s packs that will work for this setup. But this will be a specifically as a trainer for when I am instructing new pilots and will use a low headspeed.

//Dennis.

[dpelletier]

Originally Posted by Thunder Fighter

As another data point, I run my 626mm E5s with a 4035-560kv on 10s 4000mah packs for between 6 and 9 minutes depending on my headspeed used in the flight. I fly a mix of low headspeed 3D (1700rpm), basic 3D and big air (1950rpm) and only seldom use of IU2 (2150rpm) when I feel like a bit of power.

//Dennis.

Dennis, what pinion are you using with this setup?

[TucsonFlyer]

Another data point: Running the E5s on 606's I'm getting 5-7minutes on 12S 3000mah packs with a scorpion 4025. I fly mostly at 2100rpm.

I accidentally went back to back on the same pack with this setup which got me nearly 9 minutes total before LVC started to kick in.

[Tek18x]

Originally Posted by TucsonFlyer

Another data point: Running the E5s on 606's I'm getting 5-7minutes on 12S 3000mah packs with a scorpion 4025. I fly mostly at 2100rpm.

I accidentally went back to back on the same pack with this setup which got me nearly 9 minutes total before LVC started to kick in.

Im also looking into this... Much cheaper and seems people are running the "6s 550 set up" with 606 stretch. I didn't know that.

[Thunder Fighter]

Originally Posted by dpelletier

Dennis, what pinion are you using with this setup?

14t with the 10s and 560kv motor.

//Dennis.