headspeed

[matt b]

hi guys
Got the e5 stretch on its first maiden today ! Wow ! Absolutley love it !!
Im running on 12s with a 4035 560 and a yge 120hv
At 70% throttle im getting around 2200 head speed according to Mr mels calculator.

my style is sport, light 3d !!

want to know of the headspeed is sufficiant or do i need to up It or lower it ??

[flyalan]

2200 is fine.  Mine is at 2100 on Idle 2.  I am running 625's though.  Are you running 606's?


Cheers

Alan

[steffgiguere]

I'm running 2250 head speed at idle 1 and 2300 at idle 2. 2200 will be good. You know that ideally with the YGE your ideal throttle curve is 85%?

[matt b]

I am running 606's

I think  i need to drop the kv to 530 to get to 85% on the yge ?
With the 560 im nearing 2500 head speed !!!

[matt b]

can i ask what you guys ( alan,steff)
What kv motor your using ?
As per mr mel, if i drop a pinion (11) on the 560kv im at 90% on the yge to get 2150hs
If i drop the kv down to 530 i can hit 2250-2300 at 85% ?!?

[flyalan]

I am running an Xnova with a 560kv with a 12t pinion. Are you are currently using the 12t pinion? The smallest pinion option is 12t.  My setup could use a lower KV motor also but I haven't seen and detrimental problems or overheating with what I have.

Just not familiar with YGE esc so i do not know what is recommended with those.

Sounds like your setup will be fine though at 2200 and above.  Dropping the KV might be a bit more efficient at lower head speeds. 

Cheers

Alan

[Mark Burberry]

Both the Kontronik and YGE govs are optimal at 80%, with around 20% headroom for proper governing.

Mark

[steffgiguere]

560KV here with 12 tooth pinion here too.

[matt b]

I am running the 12 tooth pinion
Im basing my facts as per mr mel !!
My motor does come down alot hotter than when it was in my logo 600 ?!
Unless mr mel calculations are not correct, which i very much dowt.

[flyalan]

Matt
Sounds like you have answered your own questions then with the help of MrMel.
There are many factors here. Flying  style, the particular motor you are running. With my setup the Xnova comes down with a very reasonable temp.
A lower KV may be in order in your case.

Cheers
Alan

[Mike Spano]

i am flying a 530kv kde motor, with a 13t pinion, with the YGE 120HV on 12S. i am flying mine with the vbar gov and freewheeling turned on in the YGE.

Normal - 1500HS
IU1 - 2150HS
IU2 - 2250HS

she seems to be very happy at all 3 speeds.

[Danny Dugger]

I'm running a 510kv with 13t pinion. 1900-2100-2200 rpm and 626s on Kontronik gov.  love it

[James F]

510 in mine as well.  12t pinion.